Well not being a chemical engineer. What would change or could change the Gel point of bio-diesel? So is an cracking unit a heat process where layers of different of product are produced? If you can build a small reactor that would use waist products for heat to drive the process? Would you know where I could find plans of a reactor that could produce the right end product? The main reason for my question is to come up with bio-diesel that wont gel in winter or match the petro diesel gel point.
Appal Energy wrote: >Lee, > >One would think that a chemical engineer with specific training >in the petro-chemical field could clue you in. > >The first "low tech" improvement would be to hydrogenate the >ester, cracking any double bonds using moderate pressure, >elevated temp and sufficient time. Hydrogenation would be easier >to conduct after the esterification/transesterification rather >than on the parent feedstock It would also slightly lower the >viscosity by an imperceptible amount. > >And as for catalytic cracking, I would wonder exactly what >controls would have to be in place to secure a maximum carbon >chain length and what would be the ratios of co-products of >shorter lengths. > >That degree of intensity would probably give cause for moving >towards centralized production and away from micro-regional, as >the process surely would warrant larger volumes in order to be >economically and energy efficient. > >Something to be said for the simplicity of an acid/base reaction, >with perhaps the improvement of but hydrogenation. Both a high >pressure esterification and the hydrogenation could feasibly be >conducted in a universal reactor. > >Todd Swearingen > >----- Original Message ----- >From: Lee Sheppard <[EMAIL PROTECTED]> >To: <biofuels-biz@yahoogroups.com> >Sent: Wednesday, September 04, 2002 4:00 PM >Subject: [biofuels-biz] Cracking > > > > >>On the subject of carbon changes and temperature. Couldn't the >> >> >oil be > > >>run though a cracking unit to get the right carbon chain >> >> >length. So that > > >>the diesel would gel at a lower temperature. What would be >> >> >involved in > > >>building a unit that would handle 50 to 100 gallons at a time? >> >> >>------------------------ Yahoo! Groups >> >> >Sponsor ---------------------~--> > > >>4 DVDs Free +s&p Join Now >>http://us.click.yahoo.com/pt6YBB/NXiEAA/MVfIAA/9bTolB/TM >>--------------------------------------------------------------- >> >> >------~-> > > >>Biofuels at Journey to Forever >>http://journeytoforever.org/biofuel.html >>Biofuel at WebConX >>http://www.webconx.dns2go.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/ > > >> >> >> > > > >Biofuels at Journey to Forever >http://journeytoforever.org/biofuel.html >Biofuel at WebConX >http://www.webconx.dns2go.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/ > > > > > > [Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor ---------------------~--> 4 DVDs Free +s&p Join Now http://us.click.yahoo.com/pt6YBB/NXiEAA/MVfIAA/9bTolB/TM ---------------------------------------------------------------------~-> Biofuels at Journey to Forever http://journeytoforever.org/biofuel.html Biofuel at WebConX http://www.webconx.dns2go.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/
