Brian Is this still the same oil you were asking about three months ago?
>From: Brian Schneider <[EMAIL PROTECTED]> >Date: Mon, 5 May 2008 10:35:43 -0400 >To: sustainablelorgbiofuel@sustainablelists.org >Subject: [Biofuel] Titration > >Hi All, >Have a quick question about titration. >I have obtained some waste oil that seems to be titrating at 12 - >15mL. I have done this numerous times and come up with about the >same results. ... You said then that you'd find a new source of better oil, but early this month you asked the same question again: >From: Brian Schneider <[EMAIL PROTECTED]> >Date: Wed, 2 Jul 2008 11:03:28 -0400 >To: sustainablelorgbiofuel@sustainablelists.org >Subject: [Biofuel] Waste Oil Problems > >Hi all, >I have a source of waste oil that will provide about 20 gal of oil >per week. They are using soy oil and the virgin form of it produces >very good fuel. They say that they change the oil once per week. >The problem is that the used oil titrates at 12 to 15 mL. ... And now again, on 24 July, you ask just the same question: >I have titrated some sample oil I have received and it titrates high >like 12 - 14 ml. So I thought I would do the bracket method and see >if that would give any different results so I would know if my >titration is off. What gives? Are these different sources of oil or still the same source? And what stage are you at, exactly? Are you still a novice? It sure sounds like it since you're so unsure of your titration. There's no problem with titration. Can you make one-litre test batches with new oil that reliably pass the quality tests? Wash test http://journeytoforever.org/biodiesel_vehicle.html#washtst Methanol test http://journeytoforever.org/biodiesel_vehicle.html#methtest Can you make one-litre test batches with used oil that reliably pass the quality tests? You say you keep checking JtF but you "can't find the answer", but I'm wondering how much notice you take of the answers you can find. For instance, it says "NOTE: Novices should avoid poor-quality oil like this for their first test-batches with used oil. Find a source of oil that titrates at 2 to 2.5 ml of 0.1% NaOH solution, not more than 3 ml. Leave overcooked oils with high titration levels for later when you have more experience. Again, make small one-litre test batches before attempting larger batches of WVO." It says it again and again: avoid high-FFA oils, especially if you're a novice. So why, at this stage, after less than four months' experience, are you STILL trying to use oil that titrates at 12-14 ml? And why can't you do a more accurate titration than that? The higher the FFA level, the more accurate the measurements need to be, it says that too. It also says you'd be lucky to get more than 50% production out of oil like that, unless you deacidify it or, better, use the acid-base method, but it's obvious you're not ready for the two-stage processes. So what gives? Best Keith >I have titrated some sample oil I have received and it titrates high >like 12 - 14 ml. So I thought I would do the bracket method and see >if that would give any different results so I would know if my >titration is off. >I did the bracket test just like the directions on the website said >to do from 5 to 7.5 g/mL. All of the samples looked almost exactly >the same except for the 7.5 which turned to a solid after the first >shake. >Does anyone have any clues as to what is going on? Because I thought >when it turned solid that indicated too much lye. So I tried a >sample batch with 6.5 g/mL. It turned out weird. There are three >layers, a kinda semi-solid layer, a dark liquid layer, and a light/ >clear layer at the top. But there are also little clumps of white >looking junk floating around everywhere in all layers almost like a >crystal forming. >I could really use some help on figuring out what is going on and get >your all expert opinions. > >Thanks >Brian Schneider _______________________________________________ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/sustainablelorgbiofuel Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (70,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
