Re: [biofuels-biz] Ethanol from cellulose
Iogen press releases say they've just finished a 100 tonne (per day I think) pilot plant in Canada. They must be fairly confident. They say the cellulose enzyme process is econmic compared to the acid process developed by some US universities. Their planned feedstock is straw from the wheat praries, but it could be anything containing cellulose - waste timber, waste paper, etc. Dave Yes, they all seem to say something like that, Iogen's been saying it awhile (at least a year now that I know of). The acid hydrolysis process is very old, I don't think it was developed by US universities. You should read the overview at the link I posted: Wood-Ethanol Report: Technology Review, Environment Canada 1999 -- good overview of the problem and the current solutions on offer. http://www.pyr.ec.gc.ca/ep/wet/section16.html Keith Addison --- In [EMAIL PROTECTED], Keith Addison [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: snip As for ethanol look at www.iogen.ca. They have a commercial enzyme process that converts cellulose from timber straw and waste paper/card into ethanol. I have no idea if it's cheaper after excise tax than dino fuel, but it's certainly clean and renewable. Iogen and others, but I'd say it's not there yet - and it's been a long time coming. Here's a rundown on it from Journey to Forever: http://journeytoforever.org/ethanol_link.html Ethanol from cellulose Wood-Ethanol Report: Technology Review, Environment Canada 1999 -- good overview of the problem and the current solutions on offer. http://www.pyr.ec.gc.ca/ep/wet/section16.html Fuel From Sawdust -- by Mike Brown (from Acres, USA, 19 June 1983): Conversion of cellulose, such as sawdust, cornstalks, newspaper and other substances, to alcohol -- a fairly uncomplicated and straightforward process. Biofuels Library. http://journeytoforever.org/biofuel_library.html Arkenol Inc. is a pioneer in processing cellulose biomas into ethanol: agricultural wastes, straw, leaves, grass clippings, sawdust or old newspapers. The company uses proprietary concentrated acid hydrolysis technology and is in the final development stages for a 48 million litre per year biorefinery in Sacramento, California processing rice straw. http://www.arkenol.com The Iogen Corporation of Canada is the leader in developing and manufacturing ethanol-from-cellulose. The Iogen process is an enzymatic hydrolysis process for converting lignocellulosics to ethanol -- uses steam explosion pretreatment pioneered by the company and Iogen's proprietary enzymes. http://www.iogen.ca/fuels.htm BC International Corporation uses a genetically modified organism to produce ethanol from biomass wastes such as agricultural residues, municipal waste, and forest thinnings. Two-stage dilute acid hydrolysis process for the preparation of the sugar streams and two separate fermentations although both use the same organism. http://www.bcintlcorp.com/ Ethanol Production in Hawaii, a pre-feasibility study who a focus on ethanol from cellulose. Includes comparison of the different processes: simultaneous saccharification and fermentation; concentrated acid hydrolysis, neutralization and fermentation; ammonia disruption, hydrolysis and fermentation; steam disruption, hydrolysis and fermentation; acid disruption and transgenic microorganism fermentation; concentrated acid hydrolysis, acid recycle and fermentation; and acidified acetone extraction, hydrolysis and fermentation. http://www.hawaii.gov/dbedt/ert/ethanol/ethano94.html Good list of references: http://www.hawaii.gov/dbedt/ert/ethanol/refs.html Also: Genencore DOE Move Closer to Fuel Ethanol from Biomass Cellulose - See: Biomass Conversion with Enzymes: http://www.newuses.org/EG/EG-23/23genetic.html Keith Addison With dino at current prices, the fuel excise tax system has to favour non-petroleum fuels. Dave Biofuels at Journey to Forever http://journeytoforever.org/biofuel.html Biofuel at WebConX http://www.webconx.com/2000/biofuel/biofuel.htm 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-biz] Ethanol from cellulose - was Re: brain strom - can the small companies
[EMAIL PROTECTED] wrote: snip As for ethanol look at www.iogen.ca. They have a commercial enzyme process that converts cellulose from timber straw and waste paper/card into ethanol. I have no idea if it's cheaper after excise tax than dino fuel, but it's certainly clean and renewable. Iogen and others, but I'd say it's not there yet - and it's been a long time coming. Here's a rundown on it from Journey to Forever: http://journeytoforever.org/ethanol_link.html Ethanol from cellulose Wood-Ethanol Report: Technology Review, Environment Canada 1999 -- good overview of the problem and the current solutions on offer. http://www.pyr.ec.gc.ca/ep/wet/section16.html Fuel From Sawdust -- by Mike Brown (from Acres, USA, 19 June 1983): Conversion of cellulose, such as sawdust, cornstalks, newspaper and other substances, to alcohol -- a fairly uncomplicated and straightforward process. Biofuels Library. http://journeytoforever.org/biofuel_library.html Arkenol Inc. is a pioneer in processing cellulose biomas into ethanol: agricultural wastes, straw, leaves, grass clippings, sawdust or old newspapers. The company uses proprietary concentrated acid hydrolysis technology and is in the final development stages for a 48 million litre per year biorefinery in Sacramento, California processing rice straw. http://www.arkenol.com The Iogen Corporation of Canada is the leader in developing and manufacturing ethanol-from-cellulose. The Iogen process is an enzymatic hydrolysis process for converting lignocellulosics to ethanol -- uses steam explosion pretreatment pioneered by the company and Iogen's proprietary enzymes. http://www.iogen.ca/fuels.htm BC International Corporation uses a genetically modified organism to produce ethanol from biomass wastes such as agricultural residues, municipal waste, and forest thinnings. Two-stage dilute acid hydrolysis process for the preparation of the sugar streams and two separate fermentations although both use the same organism. http://www.bcintlcorp.com/ Ethanol Production in Hawaii, a pre-feasibility study who a focus on ethanol from cellulose. Includes comparison of the different processes: simultaneous saccharification and fermentation; concentrated acid hydrolysis, neutralization and fermentation; ammonia disruption, hydrolysis and fermentation; steam disruption, hydrolysis and fermentation; acid disruption and transgenic microorganism fermentation; concentrated acid hydrolysis, acid recycle and fermentation; and acidified acetone extraction, hydrolysis and fermentation. http://www.hawaii.gov/dbedt/ert/ethanol/ethano94.html Good list of references: http://www.hawaii.gov/dbedt/ert/ethanol/refs.html Also: Genencore DOE Move Closer to Fuel Ethanol from Biomass Cellulose - See: Biomass Conversion with Enzymes: http://www.newuses.org/EG/EG-23/23genetic.html Keith Addison With dino at current prices, the fuel excise tax system has to favour non-petroleum fuels. Dave Biofuels at Journey to Forever http://journeytoforever.org/biofuel.html Biofuel at WebConX http://www.webconx.com/2000/biofuel/biofuel.htm 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-biz] Ethanol from cellulose - was Re: brain strom - can the small companies
Iogen press releases say they've just finished a 100 tonne (per day I think) pilot plant in Canada. They must be fairly confident. They say the cellulose enzyme process is econmic compared to the acid process developed by some US universities. Their planned feedstock is straw from the wheat praries, but it could be anything containing cellulose - waste timber, waste paper, etc. Dave --- In [EMAIL PROTECTED], Keith Addison [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: snip As for ethanol look at www.iogen.ca. They have a commercial enzyme process that converts cellulose from timber straw and waste paper/card into ethanol. I have no idea if it's cheaper after excise tax than dino fuel, but it's certainly clean and renewable. Iogen and others, but I'd say it's not there yet - and it's been a long time coming. Here's a rundown on it from Journey to Forever: http://journeytoforever.org/ethanol_link.html Ethanol from cellulose Wood-Ethanol Report: Technology Review, Environment Canada 1999 -- good overview of the problem and the current solutions on offer. http://www.pyr.ec.gc.ca/ep/wet/section16.html Fuel From Sawdust -- by Mike Brown (from Acres, USA, 19 June 1983): Conversion of cellulose, such as sawdust, cornstalks, newspaper and other substances, to alcohol -- a fairly uncomplicated and straightforward process. Biofuels Library. http://journeytoforever.org/biofuel_library.html Arkenol Inc. is a pioneer in processing cellulose biomas into ethanol: agricultural wastes, straw, leaves, grass clippings, sawdust or old newspapers. The company uses proprietary concentrated acid hydrolysis technology and is in the final development stages for a 48 million litre per year biorefinery in Sacramento, California processing rice straw. http://www.arkenol.com The Iogen Corporation of Canada is the leader in developing and manufacturing ethanol-from-cellulose. The Iogen process is an enzymatic hydrolysis process for converting lignocellulosics to ethanol -- uses steam explosion pretreatment pioneered by the company and Iogen's proprietary enzymes. http://www.iogen.ca/fuels.htm BC International Corporation uses a genetically modified organism to produce ethanol from biomass wastes such as agricultural residues, municipal waste, and forest thinnings. Two-stage dilute acid hydrolysis process for the preparation of the sugar streams and two separate fermentations although both use the same organism. http://www.bcintlcorp.com/ Ethanol Production in Hawaii, a pre-feasibility study who a focus on ethanol from cellulose. Includes comparison of the different processes: simultaneous saccharification and fermentation; concentrated acid hydrolysis, neutralization and fermentation; ammonia disruption, hydrolysis and fermentation; steam disruption, hydrolysis and fermentation; acid disruption and transgenic microorganism fermentation; concentrated acid hydrolysis, acid recycle and fermentation; and acidified acetone extraction, hydrolysis and fermentation. http://www.hawaii.gov/dbedt/ert/ethanol/ethano94.html Good list of references: http://www.hawaii.gov/dbedt/ert/ethanol/refs.html Also: Genencore DOE Move Closer to Fuel Ethanol from Biomass Cellulose - See: Biomass Conversion with Enzymes: http://www.newuses.org/EG/EG-23/23genetic.html Keith Addison With dino at current prices, the fuel excise tax system has to favour non-petroleum fuels. Dave Biofuels at Journey to Forever http://journeytoforever.org/biofuel.html Biofuel at WebConX http://www.webconx.com/2000/biofuel/biofuel.htm 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/
