Hi Ken >As interested as I am in the political discussion, I also have a very >specific biodiesel question.
It's okay, you're allowed to ask biodiesel questions too, LOL! >In the section of J-to-F showing Aleks' >acid-base method, picture 7 is labelled "first-stage glycerine" and >shows a layer of glycerine under some biodiesel/oil combination. >Was this a bit of "fudging" on his part, or maybe just a mislabelling? >I've tried a lot of different ways to get a true TRANSesterification, >with glycerine separation, using only conc. H2SO4 as a catalyst, >and I've NEVER gotten it to work. Anybody out there ever had success >as shown in picture 7 using only acid? It wasn't fudging on Aleks's part. Actually it's the original picture, from the original process. Last time Aleks updated it he changed the process quite a lot. When we were going through it all prior to uploading I queried the pics with him and he said they were okay. Later somebody wrote to me offlist asking the same question, about #7. I asked Aleks, and he said this: "Everything it's like it should be. Different fats will give different colours, a large and small batch are never the same, you know, reaction kinetics is quite different in a small reactor than in a large one, this can affect product appearance ... I don't know. Photos are OK." So that's his experience. In the original process he drained the glyc after the 1st stage, now he doesn't. I've only used the process a few times, IIRC I've had 1st stage glyc and I think one time I didn't. Or was it more than one time? Sorry, can't remember. Anyway it worked okay, except with one batch of oil where nothing worked, it was badly polluted with something or other, and very high FFAs. To think people actually ate food cooked in that stuff, and paid for it too. There should be some transesterification in the 1st stage, but are you getting a good product at the end without it? Best Keith ------------------------ Yahoo! Groups Sponsor ---------------------~--> Sell a Home with Ease! http://us.click.yahoo.com/SrPZMC/kTmEAA/jd3IAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
