Re: [Biofuel] Compressed air wash
Kelly wrote: >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>>Todd, >>>>>>>I thought the objection to bubble washing was the duration of >>>>>>> exposure >>>>>>>of fuel to air ... 6 - 8 hours for each of 3 or 4 washings, and that >>>>>>>fuel >>>>>>>oxidation would be minimized by a 1 - 2 minute burst of compressed air. >>>>>>>Homogeneity seems to be achieved more from the turbulence created by the >>>>>>>burst than from bubbles rising gently to the surface each transporting >>>>>>>miniscule quantities of water. >>>>>>> Something to note: After stir washing my 76L (20 gal) batches 4 >>>>>>> times, >>>>>>>my wash water can be mistaken for drinking water. After 4 compressed air >>>>>>>washes on a 70L batch, the wash water was still a bit cloudy. >>>>>>>Thanks for your response. You sold me on stir washing months ago. >>>>>>> Tom >>>>>>>- Original Message - >>>>>>>From: "Appal Energy" <[EMAIL PROTECTED]> <mailto:[EMAIL PROTECTED]> >>>>>>>To: <mailto:Biofuel@sustainablelists.org> >>>>>>>Sent: Wednesday, February 22, 2006 8:45 PM >>>>>>>Subject: Re: [Biofuel] Compressed air wash >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>>>Does anyone see any problems with his compressed air wash? >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>Fuel oxidation. >>>>>>>> >>>>>>>>Todd Swearingen >>>>>>>> >>>>>>>>Thomas Kelly wrote: >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>>Hello all, >>>>>>>>>A friend of mine had been bubble washing his BD using a large >>>>>>>>>ring w holes in it at the bottom of his wash tank. He used an aquarium >>>>>>>>>pump to bubble air through the ring for 6 - 8 hours /wash. He saw how >>>>>>>>>fast and effective my stir washing was and decided to speed up his >>>>>>>>>process. >>>>>>>>>He compressed air into a tank (150 psi and set the regulator at >>>>>>>>>80). The air coming out of the ring causes a very turbulent mix in the >>>>>>>>>wash tank. It only takes a minute or two to get a homogeneous mix of >>>>>>>>>water with his 70L batch of BD. He lets it run for about 15 minutes. >>>>>>>>>Is anyone else washing their BD this way? >>>>>>>>>Does anyone see any problems with his compressed air wash? >>>>>>>>>Any reason to run it more than the time it takes to get a >>>>>>>>>homogeneous mix? >>>>>>>>> Thanks, >>>>>>>>>Tom >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>>___ >>>>>>>>>Biofuel mailing list >>>>>>>>>Biofuel@sustainablelists.org <mailto:Biofuel@sustainablelists.org> >>>>>>>>>http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org >>>>>>>>> >>>>>>>>>Biofuel at Journey to Forever: >>>>>>>>>http://journeytoforever.org/biofuel.html >>>>>>>>
Re: [Biofuel] Compressed air wash
vacuum under any conditions should not impact the biodiesel, nitrogen gas shouldn't impact, even nitrogen, vacuum and heat wouldn't be a problem. If you want to impress the folks at the next potluck, tell them you're using vacuum enhanced sparging. ;-> My comment on forcing conditions was just to protect myself from argument when somebody says "oh yeah, well nitrogen reacts in a diesel engine to form small amounts of NOx, so you can't say that nitrogen is unreactive" Joe Street wrote: > Thanks for clearing that up Bob; > > Now in regard to forcing conditions I have a question. I have been > daydreaming about ways to speed things up. One thing I know from my > experience with vacuum systems is in drying type applications you get a > lot further and faster by doing pump-purge cycles with vacuum and dry > gas than you do with just vacuum and heat alone. I was toying with the > idea of introducing hot dry N2 through a stone after an evacuation step > to vent up to atmoshperic pressure and then use the pump to evacuate the > gas again which would have picked up a lot of moisture from the oil or > fuel as the case may be. My initial guess is that what you would have > meant by forcing would more likely be a combination of heat and > pressure, (and maybe some other source of 'energy input') but do you > think that vacuum and N2 might have any ill effect that would be counter > intuitive? > > Joe > > bob allen wrote: >> Hey Joe, I am. it's the 20 % oxygen doing the oxidation. Nitrogen is >> unreactive under these conditions. >> >> Joe Street wrote: >> >>> Thanks Jim; >>> >>> I'm not a chemist so maybe you can fill me in on the reaction. Air is >>> about 80% nitrogen so is the degradation that people have been referring >>> to as "oxidation" just a generalized term that includes a nitrification >>> process as well? >>> >>> Joe >>> >>> PS Helium is expensive! And so is Argon. >>> >>> >>> >>> JJJN wrote: >>> >>>> Joe, >>>> I would think N2 is a very poor choice as it could be a reactant, >>>> however Argon or Helium welding gasses would do very well as they are >>>> inert. >>>> >>>> Jim >>>> >>>> Joe Street wrote: >>>> >>>> >>>> >>>>> Hi Tom; >>>>> >>>>> As a continuation of this inquiry it would be good if you could give a >>>>> comparison of the ph of the wash water before and after washing in >>>>> each case. If the water is cloudy using the sparging technique after >>>>> 4 washes then I think it means it is still removing something from the >>>>> fuel. The ph might give a clue to this. If you are concerned about >>>>> oxidation you could always use N2 as a sparging gas of course but it >>>>> would add some cost, but not a lot since you run it for such a short >>>>> time. I would expect you are right though that in such a short time >>>>> oxidation would not take place to a significant extent. I have >>>>> considered sparging with dry N2 in my vacuum processor as a means to >>>>> speed up the vacuum drying cycle but have not tried it yet. As an >>>>> asside, my pump washing process is quite harsh and I find also that >>>>> after the 3rd wash there is still a lille cloudiness to the water so I >>>>> do 4 washes as well. >>>>> >>>>> Joe >>>>> >>>>> Thomas Kelly wrote: >>>>> >>>>> >>>>> >>>>>> Todd, >>>>>> I thought the objection to bubble washing was the duration of >>>>>> exposure >>>>>> of fuel to air ... 6 - 8 hours for each of 3 or 4 washings, and that >>>>>> fuel >>>>>> oxidation would be minimized by a 1 - 2 minute burst of compressed air. >>>>>> Homogeneity seems to be achieved more from the turbulence created by the >>>>>> burst than from bubbles rising gently to the surface each transporting >>>>>> miniscule quantities of water. >>>>>>Something to note: After stir washing my 76L (20 gal) batches 4 >>>>>> times, >>>>>> my wash water can be mistaken for drinking water. After 4 compressed air >>>>>> washes on a 70L batch
Re: [Biofuel] Compressed air wash
Thanks for clearing that up Bob; Now in regard to forcing conditions I have a question. I have been daydreaming about ways to speed things up. One thing I know from my experience with vacuum systems is in drying type applications you get a lot further and faster by doing pump-purge cycles with vacuum and dry gas than you do with just vacuum and heat alone. I was toying with the idea of introducing hot dry N2 through a stone after an evacuation step to vent up to atmoshperic pressure and then use the pump to evacuate the gas again which would have picked up a lot of moisture from the oil or fuel as the case may be. My initial guess is that what you would have meant by forcing would more likely be a combination of heat and pressure, (and maybe some other source of 'energy input') but do you think that vacuum and N2 might have any ill effect that would be counter intuitive? Joe bob allen wrote: Hey Joe, I am. it's the 20 % oxygen doing the oxidation. Nitrogen is unreactive under these conditions. Joe Street wrote: Thanks Jim; I'm not a chemist so maybe you can fill me in on the reaction. Air is about 80% nitrogen so is the degradation that people have been referring to as "oxidation" just a generalized term that includes a nitrification process as well? Joe PS Helium is expensive! And so is Argon. JJJN wrote: Joe, I would think N2 is a very poor choice as it could be a reactant, however Argon or Helium welding gasses would do very well as they are inert. Jim Joe Street wrote: Hi Tom; As a continuation of this inquiry it would be good if you could give a comparison of the ph of the wash water before and after washing in each case. If the water is cloudy using the sparging technique after 4 washes then I think it means it is still removing something from the fuel. The ph might give a clue to this. If you are concerned about oxidation you could always use N2 as a sparging gas of course but it would add some cost, but not a lot since you run it for such a short time. I would expect you are right though that in such a short time oxidation would not take place to a significant extent. I have considered sparging with dry N2 in my vacuum processor as a means to speed up the vacuum drying cycle but have not tried it yet. As an asside, my pump washing process is quite harsh and I find also that after the 3rd wash there is still a lille cloudiness to the water so I do 4 washes as well. Joe Thomas Kelly wrote: Todd, I thought the objection to bubble washing was the duration of exposure of fuel to air ... 6 - 8 hours for each of 3 or 4 washings, and that fuel oxidation would be minimized by a 1 - 2 minute burst of compressed air. Homogeneity seems to be achieved more from the turbulence created by the burst than from bubbles rising gently to the surface each transporting miniscule quantities of water. Something to note: After stir washing my 76L (20 gal) batches 4 times, my wash water can be mistaken for drinking water. After 4 compressed air washes on a 70L batch, the wash water was still a bit cloudy. Thanks for your response. You sold me on stir washing months ago. Tom - Original Message - From: "Appal Energy" <[EMAIL PROTECTED]> To: Sent: Wednesday, February 22, 2006 8:45 PM Subject: Re: [Biofuel] Compressed air wash Does anyone see any problems with his compressed air wash? Fuel oxidation. Todd Swearingen Thomas Kelly wrote: Hello all, A friend of mine had been bubble washing his BD using a large ring w holes in it at the bottom of his wash tank. He used an aquarium pump to bubble air through the ring for 6 - 8 hours /wash. He saw how fast and effective my stir washing was and decided to speed up his process. He compressed air into a tank (150 psi and set the regulator at 80). The air coming out of the ring causes a very turbulent mix in the wash tank. It only takes a minute or two to get a homogeneous mix of water with his 70L batch of BD. He lets it run for about 15 minutes. Is anyone else washing their BD this way? Does anyone see any problems with his compressed air wash? Any reason to run it more than the time it takes to get a homogeneous mix? Thanks, Tom ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined
Re: [Biofuel] Compressed air wash
Joe Street wrote: > Thanks Jim; > > I'm not a chemist so maybe you can fill me in on the reaction. Air is > about 80% nitrogen so is the degradation that people have been > referring to as "oxidation" just a generalized term that includes a > nitrification process as well? > > Joe > > PS Helium is expensive! And so is Argon. > CO2 isn't too bad, but it's all unnecessary if one stir mixes instead of bubble mixes. --- David ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Compressed air wash
simply said- NO -nitrogen gas will not be a reactant under these (or any but forcing) conditions JJJN wrote: > Joe, > I would think N2 is a very poor choice as it could be a reactant, > however Argon or Helium welding gasses would do very well as they are inert. > > Jim > > Joe Street wrote: > >> Hi Tom; >> >> As a continuation of this inquiry it would be good if you could give a >> comparison of the ph of the wash water before and after washing in >> each case. If the water is cloudy using the sparging technique after >> 4 washes then I think it means it is still removing something from the >> fuel. The ph might give a clue to this. If you are concerned about >> oxidation you could always use N2 as a sparging gas of course but it >> would add some cost, but not a lot since you run it for such a short >> time. I would expect you are right though that in such a short time >> oxidation would not take place to a significant extent. I have >> considered sparging with dry N2 in my vacuum processor as a means to >> speed up the vacuum drying cycle but have not tried it yet. As an >> asside, my pump washing process is quite harsh and I find also that >> after the 3rd wash there is still a lille cloudiness to the water so I >> do 4 washes as well. >> >> Joe >> >> Thomas Kelly wrote: >> >>> Todd, >>> I thought the objection to bubble washing was the duration of exposure >>> of fuel to air ... 6 - 8 hours for each of 3 or 4 washings, and that fuel >>> oxidation would be minimized by a 1 - 2 minute burst of compressed air. >>> Homogeneity seems to be achieved more from the turbulence created by the >>> burst than from bubbles rising gently to the surface each transporting >>> miniscule quantities of water. >>>Something to note: After stir washing my 76L (20 gal) batches 4 times, >>> my wash water can be mistaken for drinking water. After 4 compressed air >>> washes on a 70L batch, the wash water was still a bit cloudy. >>> Thanks for your response. You sold me on stir washing months ago. >>> Tom >>> - Original Message - >>> From: "Appal Energy" <[EMAIL PROTECTED]> <mailto:[EMAIL PROTECTED]> >>> To: <mailto:Biofuel@sustainablelists.org> >>> Sent: Wednesday, February 22, 2006 8:45 PM >>> Subject: Re: [Biofuel] Compressed air wash >>> >>> >>> >>> >>>>> Does anyone see any problems with his compressed air wash? >>>>> >>>>> >>>> Fuel oxidation. >>>> >>>> Todd Swearingen >>>> >>>> Thomas Kelly wrote: >>>> >>>> >>>> >>>>> Hello all, >>>>> A friend of mine had been bubble washing his BD using a large >>>>> ring w holes in it at the bottom of his wash tank. He used an aquarium >>>>> pump to bubble air through the ring for 6 - 8 hours /wash. He saw how >>>>> fast and effective my stir washing was and decided to speed up his >>>>> process. >>>>> He compressed air into a tank (150 psi and set the regulator at >>>>> 80). The air coming out of the ring causes a very turbulent mix in the >>>>> wash tank. It only takes a minute or two to get a homogeneous mix of >>>>> water with his 70L batch of BD. He lets it run for about 15 minutes. >>>>> Is anyone else washing their BD this way? >>>>> Does anyone see any problems with his compressed air wash? >>>>> Any reason to run it more than the time it takes to get a >>>>> homogeneous mix? >>>>>Thanks, >>>>> Tom >>>>> >>>>> >>>>> >>>>> ___ >>>>> Biofuel mailing list >>>>> Biofuel@sustainablelists.org <mailto:Biofuel@sustainablelists.org> >>>>> http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org >>>>> >>>>> Biofuel at Journey to Forever: >>>>> http://journeytoforever.org/biofuel.html >>>>> >>>>> Search the combined Biofuel and Biofuels-biz list archives (50,000 >>>>> messages): >>>>> http://www.mail-archive.com/bio
Re: [Biofuel] Compressed air wash
Hey Joe, I am. it's the 20 % oxygen doing the oxidation. Nitrogen is unreactive under these conditions. Joe Street wrote: > Thanks Jim; > > I'm not a chemist so maybe you can fill me in on the reaction. Air is > about 80% nitrogen so is the degradation that people have been referring > to as "oxidation" just a generalized term that includes a nitrification > process as well? > > Joe > > PS Helium is expensive! And so is Argon. > > > > JJJN wrote: >> Joe, >> I would think N2 is a very poor choice as it could be a reactant, >> however Argon or Helium welding gasses would do very well as they are inert. >> >> Jim >> >> Joe Street wrote: >> >> >>> Hi Tom; >>> >>> As a continuation of this inquiry it would be good if you could give a >>> comparison of the ph of the wash water before and after washing in >>> each case. If the water is cloudy using the sparging technique after >>> 4 washes then I think it means it is still removing something from the >>> fuel. The ph might give a clue to this. If you are concerned about >>> oxidation you could always use N2 as a sparging gas of course but it >>> would add some cost, but not a lot since you run it for such a short >>> time. I would expect you are right though that in such a short time >>> oxidation would not take place to a significant extent. I have >>> considered sparging with dry N2 in my vacuum processor as a means to >>> speed up the vacuum drying cycle but have not tried it yet. As an >>> asside, my pump washing process is quite harsh and I find also that >>> after the 3rd wash there is still a lille cloudiness to the water so I >>> do 4 washes as well. >>> >>> Joe >>> >>> Thomas Kelly wrote: >>> >>> >>>> Todd, >>>> I thought the objection to bubble washing was the duration of exposure >>>> of fuel to air ... 6 - 8 hours for each of 3 or 4 washings, and that fuel >>>> oxidation would be minimized by a 1 - 2 minute burst of compressed air. >>>> Homogeneity seems to be achieved more from the turbulence created by the >>>> burst than from bubbles rising gently to the surface each transporting >>>> miniscule quantities of water. >>>>Something to note: After stir washing my 76L (20 gal) batches 4 times, >>>> my wash water can be mistaken for drinking water. After 4 compressed air >>>> washes on a 70L batch, the wash water was still a bit cloudy. >>>> Thanks for your response. You sold me on stir washing months ago. >>>>Tom >>>> - Original Message - >>>> From: "Appal Energy" <[EMAIL PROTECTED]> <mailto:[EMAIL PROTECTED]> >>>> To: <mailto:Biofuel@sustainablelists.org> >>>> Sent: Wednesday, February 22, 2006 8:45 PM >>>> Subject: Re: [Biofuel] Compressed air wash >>>> >>>> >>>> >>>> >>>> >>>>>> Does anyone see any problems with his compressed air wash? >>>>>> >>>>>> >>>>>> >>>>> Fuel oxidation. >>>>> >>>>> Todd Swearingen >>>>> >>>>> Thomas Kelly wrote: >>>>> >>>>> >>>>> >>>>> >>>>>> Hello all, >>>>>> A friend of mine had been bubble washing his BD using a large >>>>>> ring w holes in it at the bottom of his wash tank. He used an aquarium >>>>>> pump to bubble air through the ring for 6 - 8 hours /wash. He saw how >>>>>> fast and effective my stir washing was and decided to speed up his >>>>>> process. >>>>>> He compressed air into a tank (150 psi and set the regulator at >>>>>> 80). The air coming out of the ring causes a very turbulent mix in the >>>>>> wash tank. It only takes a minute or two to get a homogeneous mix of >>>>>> water with his 70L batch of BD. He lets it run for about 15 minutes. >>>>>> Is anyone else washing their BD this way? >>>>>> Does anyone see any problems with his compressed air wash? >>>>>> Any reason to run it more than the time it takes to get a >>>>>> homogeneous mix? >>>>>>
Re: [Biofuel] Compressed air wash
Good point. I'd also like to point out that I find pump washing very effective and very quick to get to the homogeniety point too. Joe David Miller wrote: Joe Street wrote: Thanks Jim; I'm not a chemist so maybe you can fill me in on the reaction. Air is about 80% nitrogen so is the degradation that people have been referring to as "oxidation" just a generalized term that includes a nitrification process as well? Joe PS Helium is expensive! And so is Argon. CO2 isn't too bad, but it's all unnecessary if one stir mixes instead of bubble mixes. --- David ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Compressed air wash
Thanks Jim; I'm not a chemist so maybe you can fill me in on the reaction. Air is about 80% nitrogen so is the degradation that people have been referring to as "oxidation" just a generalized term that includes a nitrification process as well? Joe PS Helium is expensive! And so is Argon. JJJN wrote: Joe, I would think N2 is a very poor choice as it could be a reactant, however Argon or Helium welding gasses would do very well as they are inert. Jim Joe Street wrote: Hi Tom; As a continuation of this inquiry it would be good if you could give a comparison of the ph of the wash water before and after washing in each case. If the water is cloudy using the sparging technique after 4 washes then I think it means it is still removing something from the fuel. The ph might give a clue to this. If you are concerned about oxidation you could always use N2 as a sparging gas of course but it would add some cost, but not a lot since you run it for such a short time. I would expect you are right though that in such a short time oxidation would not take place to a significant extent. I have considered sparging with dry N2 in my vacuum processor as a means to speed up the vacuum drying cycle but have not tried it yet. As an asside, my pump washing process is quite harsh and I find also that after the 3rd wash there is still a lille cloudiness to the water so I do 4 washes as well. Joe Thomas Kelly wrote: Todd, I thought the objection to bubble washing was the duration of exposure of fuel to air ... 6 - 8 hours for each of 3 or 4 washings, and that fuel oxidation would be minimized by a 1 - 2 minute burst of compressed air. Homogeneity seems to be achieved more from the turbulence created by the burst than from bubbles rising gently to the surface each transporting miniscule quantities of water. Something to note: After stir washing my 76L (20 gal) batches 4 times, my wash water can be mistaken for drinking water. After 4 compressed air washes on a 70L batch, the wash water was still a bit cloudy. Thanks for your response. You sold me on stir washing months ago. Tom - Original Message - From: "Appal Energy" <[EMAIL PROTECTED]> To: Sent: Wednesday, February 22, 2006 8:45 PM Subject: Re: [Biofuel] Compressed air wash Does anyone see any problems with his compressed air wash? Fuel oxidation. Todd Swearingen Thomas Kelly wrote: Hello all, A friend of mine had been bubble washing his BD using a large ring w holes in it at the bottom of his wash tank. He used an aquarium pump to bubble air through the ring for 6 - 8 hours /wash. He saw how fast and effective my stir washing was and decided to speed up his process. He compressed air into a tank (150 psi and set the regulator at 80). The air coming out of the ring causes a very turbulent mix in the wash tank. It only takes a minute or two to get a homogeneous mix of water with his 70L batch of BD. He lets it run for about 15 minutes. Is anyone else washing their BD this way? Does anyone see any problems with his compressed air wash? Any reason to run it more than the time it takes to get a homogeneous mix? Thanks, Tom ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustai
Re: [Biofuel] Compressed air wash
Thomas, That's 0.20 ml per liter of fuel to be washed. Adjust as needed to bring the wash water to neutral, which means toy with it. Doing this in the first wash will yield remarkable improvements in any subsequent wash. Todd Swearingen Thomas Kelly wrote: >Todd, > I've been sold on stir washing for months and recommend it to all >including my friend who is using compressed air. >You wrote: > "On either wash type, you might try adding around 0.20 milliliters of 85% >phosphoric acid to the wash water. This will allow more of the base soaps to >come out in the first wash, reducing your overall wash number/volume." > > Is 0.20 ml the correct volume of phosphoric acid? (It seems like a very >small amount.) >+ Add it only to the first wash? > Thanks, > Tom > - Original Message - >From: "Appal Energy" <[EMAIL PROTECTED]> >To: >Sent: Thursday, February 23, 2006 7:11 PM >Subject: Re: [Biofuel] Compressed air wash > > > > >>Thomas, >> >>Bubble washing prolly won't condemn your fuel. But it does degrade it. >> >>Whether you use "tiny bubbles..." for a long duration or short bursts of >>compressed air, do you really think that there is less air contact with >>the fuel in the end run? >> >>On either wash type, you might try adding around 0.20 milliliters of 85% >>phosphoric acid to the wash water. This will allow more of the base >>soaps to come out in the first wash, reducing your overall wash >>number/volume. >> >>Todd Swearingen >> >> >>Thomas Kelly wrote: >> >> >> >>>Todd, >>>I thought the objection to bubble washing was the duration of >>>exposure >>>of fuel to air ... 6 - 8 hours for each of 3 or 4 washings, and that fuel >>>oxidation would be minimized by a 1 - 2 minute burst of compressed air. >>>Homogeneity seems to be achieved more from the turbulence created by the >>>burst than from bubbles rising gently to the surface each transporting >>>miniscule quantities of water. >>> Something to note: After stir washing my 76L (20 gal) batches 4 times, >>>my wash water can be mistaken for drinking water. After 4 compressed air >>>washes on a 70L batch, the wash water was still a bit cloudy. >>>Thanks for your response. You sold me on stir washing months ago. >>> Tom >>>- Original Message - >>>From: "Appal Energy" <[EMAIL PROTECTED]> >>>To: >>>Sent: Wednesday, February 22, 2006 8:45 PM >>>Subject: Re: [Biofuel] Compressed air wash >>> >>> >>> >>> >>> >>> >>>>>Does anyone see any problems with his compressed air wash? >>>>> >>>>> >>>>> >>>>> >>>>Fuel oxidation. >>>> >>>>Todd Swearingen >>>> >>>>Thomas Kelly wrote: >>>> >>>> >>>> >>>> >>>> >>>>>Hello all, >>>>>A friend of mine had been bubble washing his BD using a large >>>>>ring w holes in it at the bottom of his wash tank. He used an aquarium >>>>>pump to bubble air through the ring for 6 - 8 hours /wash. He saw how >>>>>fast and effective my stir washing was and decided to speed up his >>>>>process. >>>>>He compressed air into a tank (150 psi and set the regulator at >>>>>80). The air coming out of the ring causes a very turbulent mix in the >>>>>wash tank. It only takes a minute or two to get a homogeneous mix of >>>>>water with his 70L batch of BD. He lets it run for about 15 minutes. >>>>>Is anyone else washing their BD this way? >>>>>Does anyone see any problems with his compressed air wash? >>>>>Any reason to run it more than the time it takes to get a >>>>>homogeneous mix? >>>>> Thanks, >>>>>Tom >>>>> >>>>> >>>>> >>>>>___ >>>>>Biofuel mailing list >>>>>Biofuel@sustainablelists.org >>>>>http://sustainablelists.org/mailman/listinfo/biofuel_su
Re: [Biofuel] Compressed air wash
Todd, I've been sold on stir washing for months and recommend it to all including my friend who is using compressed air. You wrote: "On either wash type, you might try adding around 0.20 milliliters of 85% phosphoric acid to the wash water. This will allow more of the base soaps to come out in the first wash, reducing your overall wash number/volume." Is 0.20 ml the correct volume of phosphoric acid? (It seems like a very small amount.) + Add it only to the first wash? Thanks, Tom - Original Message - From: "Appal Energy" <[EMAIL PROTECTED]> To: Sent: Thursday, February 23, 2006 7:11 PM Subject: Re: [Biofuel] Compressed air wash > Thomas, > > Bubble washing prolly won't condemn your fuel. But it does degrade it. > > Whether you use "tiny bubbles..." for a long duration or short bursts of > compressed air, do you really think that there is less air contact with > the fuel in the end run? > > On either wash type, you might try adding around 0.20 milliliters of 85% > phosphoric acid to the wash water. This will allow more of the base > soaps to come out in the first wash, reducing your overall wash > number/volume. > > Todd Swearingen > > > Thomas Kelly wrote: > >>Todd, >> I thought the objection to bubble washing was the duration of >> exposure >>of fuel to air ... 6 - 8 hours for each of 3 or 4 washings, and that fuel >>oxidation would be minimized by a 1 - 2 minute burst of compressed air. >>Homogeneity seems to be achieved more from the turbulence created by the >>burst than from bubbles rising gently to the surface each transporting >>miniscule quantities of water. >>Something to note: After stir washing my 76L (20 gal) batches 4 times, >>my wash water can be mistaken for drinking water. After 4 compressed air >>washes on a 70L batch, the wash water was still a bit cloudy. >> Thanks for your response. You sold me on stir washing months ago. >> Tom >>- Original Message - >>From: "Appal Energy" <[EMAIL PROTECTED]> >>To: >>Sent: Wednesday, February 22, 2006 8:45 PM >>Subject: Re: [Biofuel] Compressed air wash >> >> >> >> >>>>Does anyone see any problems with his compressed air wash? >>>> >>>> >>>Fuel oxidation. >>> >>>Todd Swearingen >>> >>>Thomas Kelly wrote: >>> >>> >>> >>>>Hello all, >>>> A friend of mine had been bubble washing his BD using a large >>>>ring w holes in it at the bottom of his wash tank. He used an aquarium >>>>pump to bubble air through the ring for 6 - 8 hours /wash. He saw how >>>>fast and effective my stir washing was and decided to speed up his >>>>process. >>>> He compressed air into a tank (150 psi and set the regulator at >>>>80). The air coming out of the ring causes a very turbulent mix in the >>>>wash tank. It only takes a minute or two to get a homogeneous mix of >>>>water with his 70L batch of BD. He lets it run for about 15 minutes. >>>> Is anyone else washing their BD this way? >>>> Does anyone see any problems with his compressed air wash? >>>> Any reason to run it more than the time it takes to get a >>>>homogeneous mix? >>>>Thanks, >>>> Tom >>>> >>>> >>>> >>>>___ >>>>Biofuel mailing list >>>>Biofuel@sustainablelists.org >>>>http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org >>>> >>>>Biofuel at Journey to Forever: >>>>http://journeytoforever.org/biofuel.html >>>> >>>>Search the combined Biofuel and Biofuels-biz list archives (50,000 >>>>messages): >>>>http://www.mail-archive.com/biofuel@sustainablelists.org/ >>>> >>>> >>>> >>>> >>>> >>>___ >>>Biofuel mailing list >>>Biofuel@sustainablelists.org >>>http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org >>> >>>Biofuel at Journey to Forever: >>>http://journeytoforever.org/biofuel.html >>> >>>Search t
Re: [Biofuel] Compressed air wash
Joe, I would think N2 is a very poor choice as it could be a reactant, however Argon or Helium welding gasses would do very well as they are inert. Jim Joe Street wrote: > Hi Tom; > > As a continuation of this inquiry it would be good if you could give a > comparison of the ph of the wash water before and after washing in > each case. If the water is cloudy using the sparging technique after > 4 washes then I think it means it is still removing something from the > fuel. The ph might give a clue to this. If you are concerned about > oxidation you could always use N2 as a sparging gas of course but it > would add some cost, but not a lot since you run it for such a short > time. I would expect you are right though that in such a short time > oxidation would not take place to a significant extent. I have > considered sparging with dry N2 in my vacuum processor as a means to > speed up the vacuum drying cycle but have not tried it yet. As an > asside, my pump washing process is quite harsh and I find also that > after the 3rd wash there is still a lille cloudiness to the water so I > do 4 washes as well. > > Joe > > Thomas Kelly wrote: > >>Todd, >> I thought the objection to bubble washing was the duration of exposure >>of fuel to air ... 6 - 8 hours for each of 3 or 4 washings, and that fuel >>oxidation would be minimized by a 1 - 2 minute burst of compressed air. >>Homogeneity seems to be achieved more from the turbulence created by the >>burst than from bubbles rising gently to the surface each transporting >>miniscule quantities of water. >>Something to note: After stir washing my 76L (20 gal) batches 4 times, >>my wash water can be mistaken for drinking water. After 4 compressed air >>washes on a 70L batch, the wash water was still a bit cloudy. >> Thanks for your response. You sold me on stir washing months ago. >>Tom >>- Original Message - >>From: "Appal Energy" <[EMAIL PROTECTED]> <mailto:[EMAIL PROTECTED]> >>To: <mailto:Biofuel@sustainablelists.org> >>Sent: Wednesday, February 22, 2006 8:45 PM >>Subject: Re: [Biofuel] Compressed air wash >> >> >> >> >>>>Does anyone see any problems with his compressed air wash? >>>> >>>> >>>Fuel oxidation. >>> >>>Todd Swearingen >>> >>>Thomas Kelly wrote: >>> >>> >>> >>>>Hello all, >>>> A friend of mine had been bubble washing his BD using a large >>>>ring w holes in it at the bottom of his wash tank. He used an aquarium >>>>pump to bubble air through the ring for 6 - 8 hours /wash. He saw how >>>>fast and effective my stir washing was and decided to speed up his >>>>process. >>>> He compressed air into a tank (150 psi and set the regulator at >>>>80). The air coming out of the ring causes a very turbulent mix in the >>>>wash tank. It only takes a minute or two to get a homogeneous mix of >>>>water with his 70L batch of BD. He lets it run for about 15 minutes. >>>> Is anyone else washing their BD this way? >>>> Does anyone see any problems with his compressed air wash? >>>> Any reason to run it more than the time it takes to get a >>>>homogeneous mix? >>>>Thanks, >>>> Tom >>>> >>>> >>>> >>>>___ >>>>Biofuel mailing list >>>>Biofuel@sustainablelists.org <mailto:Biofuel@sustainablelists.org> >>>>http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org >>>> >>>>Biofuel at Journey to Forever: >>>>http://journeytoforever.org/biofuel.html >>>> >>>>Search the combined Biofuel and Biofuels-biz list archives (50,000 >>>>messages): >>>>http://www.mail-archive.com/biofuel@sustainablelists.org/ >>>> >>>> >>>> >>>> >>>> >>>___ >>>Biofuel mailing list >>>Biofuel@sustainablelists.org <mailto:Biofuel@sustainablelists.org> >>>http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org >>> >>>Biofuel at Journey to Forever: >>>http://journeytoforever.org/biofuel.html >>> >>>
Re: [Biofuel] Compressed air wash
> > Does anyone see any problems with his compressed air wash? > >Fuel oxidation. Indeed. See: http://journeytoforever.org/biodiesel_bubblewash.html#oxid Oxidation and polymerisation Use the fuel quickly. Best Keith >Todd Swearingen > >Thomas Kelly wrote: > > > Hello all, > > A friend of mine had been bubble washing his BD using a large > > ring w holes in it at the bottom of his wash tank. He used an aquarium > > pump to bubble air through the ring for 6 - 8 hours /wash. He saw how > > fast and effective my stir washing was and decided to speed up his > > process. > > He compressed air into a tank (150 psi and set the regulator at > > 80). The air coming out of the ring causes a very turbulent mix in the > > wash tank. It only takes a minute or two to get a homogeneous mix of > > water with his 70L batch of BD. He lets it run for about 15 minutes. > > Is anyone else washing their BD this way? > > Does anyone see any problems with his compressed air wash? > > Any reason to run it more than the time it takes to get a > > homogeneous mix? > > Thanks, > > Tom ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Compressed air wash
I'm finally putting away my mister and bubble stone. Thanks, Keith and Todd, for your persistent good advice. There were a couple of discouraging moments there, but I've kept better records since and now stir washing saves me a lot of time. Anybody need a mister or bubble-stone? Kenji Fuse ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Compressed air wash
Thomas, Bubble washing prolly won't condemn your fuel. But it does degrade it. Whether you use "tiny bubbles..." for a long duration or short bursts of compressed air, do you really think that there is less air contact with the fuel in the end run? On either wash type, you might try adding around 0.20 milliliters of 85% phosphoric acid to the wash water. This will allow more of the base soaps to come out in the first wash, reducing your overall wash number/volume. Todd Swearingen Thomas Kelly wrote: >Todd, > I thought the objection to bubble washing was the duration of exposure >of fuel to air ... 6 - 8 hours for each of 3 or 4 washings, and that fuel >oxidation would be minimized by a 1 - 2 minute burst of compressed air. >Homogeneity seems to be achieved more from the turbulence created by the >burst than from bubbles rising gently to the surface each transporting >miniscule quantities of water. >Something to note: After stir washing my 76L (20 gal) batches 4 times, >my wash water can be mistaken for drinking water. After 4 compressed air >washes on a 70L batch, the wash water was still a bit cloudy. > Thanks for your response. You sold me on stir washing months ago. >Tom >- Original Message - >From: "Appal Energy" <[EMAIL PROTECTED]> >To: >Sent: Wednesday, February 22, 2006 8:45 PM >Subject: Re: [Biofuel] Compressed air wash > > > > >>>Does anyone see any problems with his compressed air wash? >>> >>> >>Fuel oxidation. >> >>Todd Swearingen >> >>Thomas Kelly wrote: >> >> >> >>>Hello all, >>> A friend of mine had been bubble washing his BD using a large >>>ring w holes in it at the bottom of his wash tank. He used an aquarium >>>pump to bubble air through the ring for 6 - 8 hours /wash. He saw how >>>fast and effective my stir washing was and decided to speed up his >>>process. >>> He compressed air into a tank (150 psi and set the regulator at >>>80). The air coming out of the ring causes a very turbulent mix in the >>>wash tank. It only takes a minute or two to get a homogeneous mix of >>>water with his 70L batch of BD. He lets it run for about 15 minutes. >>> Is anyone else washing their BD this way? >>> Does anyone see any problems with his compressed air wash? >>> Any reason to run it more than the time it takes to get a >>>homogeneous mix? >>>Thanks, >>> Tom >>> >>> >>> >>>___ >>>Biofuel mailing list >>>Biofuel@sustainablelists.org >>>http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org >>> >>>Biofuel at Journey to Forever: >>>http://journeytoforever.org/biofuel.html >>> >>>Search the combined Biofuel and Biofuels-biz list archives (50,000 >>>messages): >>>http://www.mail-archive.com/biofuel@sustainablelists.org/ >>> >>> >>> >>> >>> >>___ >>Biofuel mailing list >>Biofuel@sustainablelists.org >>http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org >> >>Biofuel at Journey to Forever: >>http://journeytoforever.org/biofuel.html >> >>Search the combined Biofuel and Biofuels-biz list archives (50,000 >>messages): >>http://www.mail-archive.com/biofuel@sustainablelists.org/ >> >> >> >> >> > > > >___ >Biofuel mailing list >Biofuel@sustainablelists.org >http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org > >Biofuel at Journey to Forever: >http://journeytoforever.org/biofuel.html > >Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): >http://www.mail-archive.com/biofuel@sustainablelists.org/ > > > > > ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Compressed air wash
Joe, It's a friend of mine, "Dan the tinkerer", who came up with the idea of using compressed air in his wash. I'll pass along your suggestion to test the pH of each wash. I'll also pass on the idea of using compressed nitrogen instead of air if oxidation of fuel is an issue w. the process. Tom - Original Message - From: Joe Street To: Biofuel@sustainablelists.org Sent: Thursday, February 23, 2006 11:01 AM Subject: Re: [Biofuel] Compressed air wash Hi Tom;As a continuation of this inquiry it would be good if you could give a comparison of the ph of the wash water before and after washing in each case. If the water is cloudy using the sparging technique after 4 washes then I think it means it is still removing something from the fuel. The ph might give a clue to this. If you are concerned about oxidation you could always use N2 as a sparging gas of course but it would add some cost, but not a lot since you run it for such a short time. I would expect you are right though that in such a short time oxidation would not take place to a significant extent. I have considered sparging with dry N2 in my vacuum processor as a means to speed up the vacuum drying cycle but have not tried it yet. As an asside, my pump washing process is quite harsh and I find also that after the 3rd wash there is still a lille cloudiness to the water so I do 4 washes as well.JoeThomas Kelly wrote: Todd, I thought the objection to bubble washing was the duration of exposure of fuel to air ... 6 - 8 hours for each of 3 or 4 washings, and that fuel oxidation would be minimized by a 1 - 2 minute burst of compressed air. Homogeneity seems to be achieved more from the turbulence created by the burst than from bubbles rising gently to the surface each transporting miniscule quantities of water. Something to note: After stir washing my 76L (20 gal) batches 4 times, my wash water can be mistaken for drinking water. After 4 compressed air washes on a 70L batch, the wash water was still a bit cloudy. Thanks for your response. You sold me on stir washing months ago. Tom - Original Message - From: "Appal Energy" <[EMAIL PROTECTED]> To: Sent: Wednesday, February 22, 2006 8:45 PM Subject: Re: [Biofuel] Compressed air wash Does anyone see any problems with his compressed air wash? Fuel oxidation. Todd Swearingen Thomas Kelly wrote: Hello all, A friend of mine had been bubble washing his BD using a large ring w holes in it at the bottom of his wash tank. He used an aquarium pump to bubble air through the ring for 6 - 8 hours /wash. He saw how fast and effective my stir washing was and decided to speed up his process. He compressed air into a tank (150 psi and set the regulator at 80). The air coming out of the ring causes a very turbulent mix in the wash tank. It only takes a minute or two to get a homogeneous mix of water with his 70L batch of BD. He lets it run for about 15 minutes. Is anyone else washing their BD this way? Does anyone see any problems with his compressed air wash? Any reason to run it more than the time it takes to get a homogeneous mix? Thanks, Tom ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___Biofuel mailing listBiofuel@sustainablelists.orghttp://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.orgBiofuel at Journey to Forever:http://journeytoforever.org/biofuel.htmlSearch the combined Biofu
Re: [Biofuel] Compressed air wash
Hi Tom; As a continuation of this inquiry it would be good if you could give a comparison of the ph of the wash water before and after washing in each case. If the water is cloudy using the sparging technique after 4 washes then I think it means it is still removing something from the fuel. The ph might give a clue to this. If you are concerned about oxidation you could always use N2 as a sparging gas of course but it would add some cost, but not a lot since you run it for such a short time. I would expect you are right though that in such a short time oxidation would not take place to a significant extent. I have considered sparging with dry N2 in my vacuum processor as a means to speed up the vacuum drying cycle but have not tried it yet. As an asside, my pump washing process is quite harsh and I find also that after the 3rd wash there is still a lille cloudiness to the water so I do 4 washes as well. Joe Thomas Kelly wrote: Todd, I thought the objection to bubble washing was the duration of exposure of fuel to air ... 6 - 8 hours for each of 3 or 4 washings, and that fuel oxidation would be minimized by a 1 - 2 minute burst of compressed air. Homogeneity seems to be achieved more from the turbulence created by the burst than from bubbles rising gently to the surface each transporting miniscule quantities of water. Something to note: After stir washing my 76L (20 gal) batches 4 times, my wash water can be mistaken for drinking water. After 4 compressed air washes on a 70L batch, the wash water was still a bit cloudy. Thanks for your response. You sold me on stir washing months ago. Tom - Original Message - From: "Appal Energy" <[EMAIL PROTECTED]> To: Sent: Wednesday, February 22, 2006 8:45 PM Subject: Re: [Biofuel] Compressed air wash Does anyone see any problems with his compressed air wash? Fuel oxidation. Todd Swearingen Thomas Kelly wrote: Hello all, A friend of mine had been bubble washing his BD using a large ring w holes in it at the bottom of his wash tank. He used an aquarium pump to bubble air through the ring for 6 - 8 hours /wash. He saw how fast and effective my stir washing was and decided to speed up his process. He compressed air into a tank (150 psi and set the regulator at 80). The air coming out of the ring causes a very turbulent mix in the wash tank. It only takes a minute or two to get a homogeneous mix of water with his 70L batch of BD. He lets it run for about 15 minutes. Is anyone else washing their BD this way? Does anyone see any problems with his compressed air wash? Any reason to run it more than the time it takes to get a homogeneous mix? Thanks, Tom ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Compressed air wash
Todd, I thought the objection to bubble washing was the duration of exposure of fuel to air ... 6 - 8 hours for each of 3 or 4 washings, and that fuel oxidation would be minimized by a 1 - 2 minute burst of compressed air. Homogeneity seems to be achieved more from the turbulence created by the burst than from bubbles rising gently to the surface each transporting miniscule quantities of water. Something to note: After stir washing my 76L (20 gal) batches 4 times, my wash water can be mistaken for drinking water. After 4 compressed air washes on a 70L batch, the wash water was still a bit cloudy. Thanks for your response. You sold me on stir washing months ago. Tom - Original Message - From: "Appal Energy" <[EMAIL PROTECTED]> To: Sent: Wednesday, February 22, 2006 8:45 PM Subject: Re: [Biofuel] Compressed air wash > > Does anyone see any problems with his compressed air wash? > > Fuel oxidation. > > Todd Swearingen > > Thomas Kelly wrote: > >> Hello all, >> A friend of mine had been bubble washing his BD using a large >> ring w holes in it at the bottom of his wash tank. He used an aquarium >> pump to bubble air through the ring for 6 - 8 hours /wash. He saw how >> fast and effective my stir washing was and decided to speed up his >> process. >> He compressed air into a tank (150 psi and set the regulator at >> 80). The air coming out of the ring causes a very turbulent mix in the >> wash tank. It only takes a minute or two to get a homogeneous mix of >> water with his 70L batch of BD. He lets it run for about 15 minutes. >> Is anyone else washing their BD this way? >> Does anyone see any problems with his compressed air wash? >> Any reason to run it more than the time it takes to get a >> homogeneous mix? >> Thanks, >> Tom >> >> >> >>___ >>Biofuel mailing list >>Biofuel@sustainablelists.org >>http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org >> >>Biofuel at Journey to Forever: >>http://journeytoforever.org/biofuel.html >> >>Search the combined Biofuel and Biofuels-biz list archives (50,000 >>messages): >>http://www.mail-archive.com/biofuel@sustainablelists.org/ >> >> >> > > ___ > Biofuel mailing list > Biofuel@sustainablelists.org > http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > > Search the combined Biofuel and Biofuels-biz list archives (50,000 > messages): > http://www.mail-archive.com/biofuel@sustainablelists.org/ > > > ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Compressed air wash
> Does anyone see any problems with his compressed air wash? Fuel oxidation. Todd Swearingen Thomas Kelly wrote: > Hello all, > A friend of mine had been bubble washing his BD using a large > ring w holes in it at the bottom of his wash tank. He used an aquarium > pump to bubble air through the ring for 6 - 8 hours /wash. He saw how > fast and effective my stir washing was and decided to speed up his > process. > He compressed air into a tank (150 psi and set the regulator at > 80). The air coming out of the ring causes a very turbulent mix in the > wash tank. It only takes a minute or two to get a homogeneous mix of > water with his 70L batch of BD. He lets it run for about 15 minutes. > Is anyone else washing their BD this way? > Does anyone see any problems with his compressed air wash? > Any reason to run it more than the time it takes to get a > homogeneous mix? > Thanks, > Tom > > > >___ >Biofuel mailing list >Biofuel@sustainablelists.org >http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org > >Biofuel at Journey to Forever: >http://journeytoforever.org/biofuel.html > >Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): >http://www.mail-archive.com/biofuel@sustainablelists.org/ > > > ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
[Biofuel] Compressed air wash
Hello all, A friend of mine had been bubble washing his BD using a large ring w holes in it at the bottom of his wash tank. He used an aquarium pump to bubble air through the ring for 6 - 8 hours /wash. He saw how fast and effective my stir washing was and decided to speed up his process. He compressed air into a tank (150 psi and set the regulator at 80). The air coming out of the ring causes a very turbulent mix in the wash tank. It only takes a minute or two to get a homogeneous mix of water with his 70L batch of BD. He lets it run for about 15 minutes. Is anyone else washing their BD this way? Does anyone see any problems with his compressed air wash? Any reason to run it more than the time it takes to get a homogeneous mix? Thanks, Tom ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
