from http://www.sciencegroups.com/viewtopic.php? t=23536&sid=8c39c538abf24d72e52d2d4f452871fb
Biodiesel is the name applied to vegetable oils that have been reacted with a small amount of alcahole (methanol or ethanol) catalysed by a hydroxide (such as NaOH or KOH) in a "backyard tech" process called transesterfication. It produces a superb diesel fuel that runs unmodified on ordinary diesels. (Raw vegetable oils need modified engines) Unfortunately the yield of the highest of yielding oil seed plants, the sunflower, means that a square meter of oil seed crop will only produce about 80 grams of oil per year. About 0.11L or about 0.030 gallons. The company Choren Industries in partnership with DamilerChrysler and now VW have introduced a different concept for bio fuels they are calling sunfuel. Choren makes gasifiers. Their new Carbo V two stage gasifier can produce extremely efficiently a high quality tar free synthesis gas stream sutiable for use in either a combined cycle gas turbine (35% efficiency) or conventioanl fischer-tropsch synthesis of diesel. Fast growing trees can provide 220 giga joules per hectare. In terms of diesel yield after 50% losses due to conversion that equates to 0.36 liters per square meter. (about 0.1 US gallons). That's ten times more than the oil see crop. The sunfuel is being produce at a rate of about 7.5 tons/month for use in trials by VW and DaimlerChrysler and cost about eu0.70 euro or $US0.70 per liter to make. (this is below the Eruopean sale price and because it is taxed less than imported mineral oil it ciuld thus sell at the normal European prices) Furthermore it is Chorens desire to combine the synthesis gas with electrolytically produced hydrogen to tripple the yield of fuel from about 0.35L/sq meter to over 1.0L/square meter of oil per year of land. Choren's Carbo V gasifier is not restricted to wood waste or purpose grown wood but can also used other forms of biomass, paper and even plastics and old tires. http://www.daimlerchrysler.com/dccom/0,,0-5-73591-1-75180-1-0-0-74520- 0-0-135-7166-0-0-0-0-0-0-0,00.html http://www.sachsen.de/en/bw/hightech/umwelttechnologie/inhalt_re_0302. html http://www.choren.de/e_html/estra_1.htm http://www.refuelnet.de/content/refuelnet/pdf/SOMFB_99.pdf ****************** Comment: sunflower stalks were traditionaly used as a fuel while hemp produces almost as much oil but grows like mad withlittle to no fertaliser, no insecticide and little water while producing huge amounts of cellusoic fiber usefull in paper, textiles and fuel. Could Carbo V be a way of using the rest of the plant of the oil seed crop? Carbo V fuel synthesis also represent a way the electroyltic hydrogen can be used to tripple to fuel yield of biomass. ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Ink Cartridges or Refill Kits for your HP, Epson, Canon or Lexmark Printer at MyInks.com. Free s/h on orders $50 or more to the US & Canada. http://www.c1tracking.com/l.asp?cid=5511 http://us.click.yahoo.com/mOAaAA/3exGAA/qnsNAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://infoarchive.net/sgroup/biofuel/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/biofuel/ <*> 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/
