Re: [Biofuel] qulity tests help please

[Joe Street]

Hi Golan; Thanks for the kind words.  I don't have any data of my own yet on the limits with water in methanol, because I have not yet done the experiments to find those limits.  So far I just do everything possible to eliminate water.  I think others have said you should have less than 1 or 2% water.  To dry the methanol you could use 3A molecular seives.  You have to regenerate the seives with heat or heat and vacuum each time they adsorb the water.  I am not sure if the castor oil method works for methanol but I am about to test that.  Check on journet to forever for other ideas on drying alcohol.  I understand corn woks for ethanol.  Maybe it works for methanol too? I can use my reactor to double or triple vacuum distill my recovered methanol and get pretty high purity but the process is wasteful of energy and time and I don't want to get into that. Cheers Joe Golan Shmuel wrote: hi Joe  i salute u for your beautiful site  brilliant to your knowledge does methanol purity  has standard or when does it starts to be problem how much (%)water? how u get the water out if u have to much with out getting parts of u all around? blessings Golan   On 27/09/06, Joe Street <[EMAIL PROTECTED]> wrote: Hi Golan; I got the hydrometer for $CDN 15.00 from a lab supply yes.  If you do the same calibration method as me you can do it at any termperature. Just make sure the temperature( of the liquids!)  is known and is not changing. Now the temps are dropping and my lab temperature is about 20 so I may make another chart soon too. Cheers. Joe Golan Shmuel wrote: thanks Joe u r living in Paradise it was 40c today & that's the beginning of the atum i can try at night thow 27c if i will wait aweek or two and all that if i can get that hydrometer of yours laboratory's supply? is it expensive? all the best Golan   On 26/09/06, Joe Street <[EMAIL PROTECTED] > wrote: Hi Golan; You can use a hydrometer in the range of 0.7 to 0.9 to measure the specific gravity of your methanol.  The hydrometers are usually calibrated for 16 degrees C though so measuring at room temperature will result in a lower reading.   What I did was get some very pure methanol and some water and let them sit at the ambient temperature and then acurrately measure small amounts of water and add to a measured amont of methanol.  Take the readings and make a graph to show the percentage water ( volume /volume) at the temperature you are working at.  Then you can use the hydrometer as a gauge of your water content.  This may not be perfectly accurate but will be good enough to tell you if your methanol is contaminated.  If you have a temperature close to 23 degrees you can use my data, it is here: http://www.nonprofitfuel.ca/Reactor.html Best regards. Joe Golan Shmuel wrote: hi tom      Causes of soap:   1. Water in oil/chemicals used   2. Too much caustic   3. Glycerine contamination   - Is your oil dry/your chemicals pure? - Careful titration, calculations, measurement of caustic - Do you allow the glycerine mix to settle out for 8 hrs?   since my caustic is 99% pure at list day say so and i let the glycerin mix to settle for  24-48 hrs. i titrated every batch at list twice, got good scale.  that lives us with water in oil or in methanol  i let the oil to settle for at list week or two before processing and titration values around 1 it may be methanol any idea how to check methanol for water??   thanks alot Golan                           ----- Original Message ----- From: Golan Shmuel To: Biofuel@sustainablelists.org Sent: Thursday, September 21, 2006 1:51 PM Subject: [Biofuel] qulity tests help please   hi   any explanation for passing methanol tests perfectly but steal having third layer 3-4 mm in the wash tests happened to me in 3 last batch's   thanks Golan _______________________________________________ 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/ _______________________________________________ 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/

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