If it helps to clarify, here are my two (EURO) cent: ALL commercial BD produced in Europe is made from raw oil, nobody bothers to refine (if they can).
The fatty acid composition you mention has little to do with "quality". It depends only on the feedstock AND GOES UNCHANGED THROUGH TRANSESTERIFICATION !!! Therefore it does not say anything on the "quality" of a biodiesel production. Camillo Holecek Biodiesel Raffinerie GmbH, Austria -----UrsprŸngliche Nachricht----- Von: Steven Hobbs [mailto:[EMAIL PROTECTED] Gesendet: Montag, 17. Juni 2002 15:26 An: biofuels-biz@yahoogroups.com Betreff: Re: [biofuels-biz] Re: genetic engineering G'day Keith, It's Steve Hobbs here. I have only two pieces of reference for my work. 1 - My humble 18 year old Nissan ute that has now travelled 7000 kms on a 40% cold pressed BD & dino diesel mix and appears in all respects to be travelling fine (perhaps even better that fine, engine rattle has substantially reduced, cold starts improved, reduced "smoke", etc..the ute is due to have injectors removed and inspected by an impartial party) 2 - I've had a sample of coldpressed BD analysised for fatty acid composition, which I guess would give an idea of the quality of the fuel by what fatty acids are and aren't present in my fuel. If you could Keith, I'd be interested to compare the fatty acid composition of my farm made cold pressed BD to commercially produced BD to see how the quality stacks up. So, here is the analysis C16:0 C18:0 C18:1 C18:2 C18:3 C20:0 C20:1 C22:0 3.90 4.83 80.54 9.29 0.00 0.37 0.00 1.07 If you could provide me with a commentary on the quality of my fuel, it would be appreciated. Regards Steven >snip, snip, snip,etc Keith Addison wrote: > >When compared with the costs of > >refining vegetable oils by degumming, neutralisation, bleaching etc., > >the cost of transesterifying raw oils is not; or should not be; > >excessive. Steve Hobbs has shown that the transesterification (with > >washing)of raw oil effectivelty removes the contaminants. > > I've seen various conflicting statements about that. Do you have a > reference for Steve Hobbs's work? > > Best wishes > > Keith > > ------------------------ Yahoo! Groups Sponsor ---------------------~--> Free $5 Love Reading Risk Free! http://us.click.yahoo.com/3PCXaC/PfREAA/Ey.GAA/9bTolB/TM ---------------------------------------------------------------------~-> Biofuels at Journey to Forever http://journeytoforever.org/biofuel.html Biofuel at WebConX http://www.webconx.com/2000/biofuel/biofuel.htm List messages are archived at the Info-Archive at NNYTech: http://archive.nnytech.net/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
