Re: [biofuel] Re: Introduction and some questions - Newbie
Motie, High pressure water was commonly used to debark logs in sawmills the US until about 1970 when environmental regulations limited water discharge. Since then most all hydraulic debarkers have disappeared in favor of mechanical debarkers because of the high cost of cleaning the water prior to discharge. It was a clean and efficient method of debarking with very little fiber loss. Tom - Original Message - From: motie_d [EMAIL PROTECTED] To: biofuel@yahoogroups.com Sent: Wednesday, February 05, 2003 9:53 PM Subject: [biofuel] Re: Introduction and some questions - Newbie --- In biofuel@yahoogroups.com, kirk [EMAIL PROTECTED] wrote: There is an out of print book Novel Drilling Technoques that in the second edition talks about cutting sandstone at several meters per second with liquid pressures of that magnitude. Granite I think was 7cm per second if memory serves. Obscure technology. Anyway, you can lose a lot more than just soft tissue. Even a couple hundred psi can inject you like a hypodermic needle. Probably wouldn't be a good thing to happen. Kirk I did some experimentation last winter for a technology development company, using high pressure water to cut wood. At a lower pressure, the water can be used to easily and cleanly remove the bark,(which contains contaminants) then turn the pressure up to thinly slice the wood, removing water soluble extracts. Non-disclosure agreements won't allow further details. Sorry. Motie 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 the Yahoo! Terms of Service. [Non-text portions of this message have been removed] 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/
[biofuel] BioC: Climate Solutions Ethanol Report
Fwd from the Bioconversion List: Patrick Mazza, Climate Solutions, has produced a report, Harvesting Clean Energy for Rural Development - Ethanol. The report is available on the Climate Solutions website as a pdf file. http://climatesolutions.org/Harvesting/EthanolReport.pdf It also reports on bioethanol potential in the Pacific Northwest. Patrick reported on four Northwest (of 56 national) plants at a recent ethanol conference in Eugene, Oregon. At the conference, Mike McCormack of the California Energy Commission said,The biggest barrier to commercial production is financing the first commercial plant. Oregon Department of Energy's Oregon Cellulose Study was discussed. http://www.energy.state.or.us/biomass/study.htm The conference was sponsored by the Oregon Office of Energy, Pacific Northwest and Alaska regional Biomass energy Program, and the US Department of Energy's Office of Fuels Development. Can anyone tell us the status of the BCI plant at Jennings, Louisiana? See also: http://climatesolutions.org/ http://bioenergy.ornl.gov/doeofd/ http://www.ott.doe.gov/rbep/ Tom Harvesting Clean Energy for Rural Development-- Ethanol Thomas R Miles [EMAIL PROTECTED] T R Miles, TCI Tel 503-292-0107 1470 SW Woodward WayFax 503-292-2919 Portland, OR 97225 USA - Bioconversion List Archives: http://www.crest.org/discussion/bioconversion/current/ Bioconversion List Moderator: Tom Jeffries, [EMAIL PROTECTED] Sponsor the Bioconversion List: http://www.crest.org/discuss3.html - Other Bioconversion Events and Information: http://www.fsec.ucf.edu/bioam/ http://solstice.crest.org/renewables/biomass-info/ Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
[biofuel] Fwd: inquiry about ethanol production
Please copy your reply to [EMAIL PROTECTED] From: [EMAIL PROTECTED] Date: Wed, 7 Mar 2001 06:21:20 EST Subject: inquiry about ethanol production To: [EMAIL PROTECTED] X-Mailer: AOL 5.0 for Windows sub 117 Hello, I am researching production of ethanol in Brazil and Hawaii. Can you refer me to currently active companies in both places who are producing ethanol from sugar cane? Many thanks, Paula Alders - The Bioenergy List is sponsored by: David M. Gubanc.P.E. http://www.gubanc.com dk-TEKNIK ENERGY ENVIRONMENT http://www.dk-teknik.com Hazen Research, Inc. http://www.hazenusa.com - Other Sponsors, Archives and Information: http://www.nrel.gov/bioam/ http://solstice.crest.org/renewables/bioenergy-list-archive/ http://www.crest.org/renewables/biomass-info/ http://www.crest.org/renewables/biomass-info/carbon.shtml Yahoo! Groups Sponsor -~-~ Make good on the promise you made at graduation to keep in touch. Classmates.com has over 14 million registered high school alumni--chances are you'll find your friends! http://us.click.yahoo.com/l3joGB/DMUCAA/4ihDAA/FZTVlB/TM -_- Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
[biofuel] Re: GAS-L: The cellulose to ethanol dream again.
Organosolv pulping of straws and other non-wood fibers was a favorite of my old prof Dr. Kyosti Saarkenen (University of Washington) in the late 70's. Does anyone have a recent review of organosolv pulping or hydrolysis? I'd like to know how far it has advanced. Regards, Tom Miles At 04:53 AM 11/29/00 -0200, Antonio G. P. Hilst wrote: Dear Tom. Harry and All, Take a look at organosolv hydrolisys: 10 min. reaction time, 70 % + glucose and xylose recovery, almost complete (95+%) biomass conversion, furfural and acetic acid recoverable with the organic solvent, HMF (Hydroxy Methyl Furfural) also. Antonio [EMAIL PROTECTED] wrote: Dear Harry et al: Thank you for your repeat warning to the non-dreamers of this world. Cellulose hydrolysis was a done deal in the laboratory in 1900. During WWI a plant or two were built and torn down ASAP when the war ended. Same WWII. In my 25 years of monitoring various fuel options, I have seen startup plants probably yearly with great fanfare then nothing. Good for stock scams. Bad for energy. If acid hydrolysis fails, then enzymatic is touted; if enzymatic fails, then acid hyrdolysis is back in.. It is too bad that NREL doesn't have to be accountable for the millions they have spent on ethanol from cellulose over the last two decades. Beautiful plants that go nowhere. And don't forget, cellulose is only 50% of the biomass. Gasificaiton converts 100% to syngas and doesn't care much about the form. Efficiencies to methanol will be in excess of 50%. UUUCH TOM REEDBEF CPC In a message dated 11/19/00 6:33:55 PM Mountain Standard Time, [EMAIL PROTECTED] writes: Hello Dave and all, Cellulose hydrolysis has self-documented its own failure many many times = for over 50 years. There is no new science and engineering by which to = expect any changes in that dark future. There are inherrent limitations = of mass transfer rates, irreversible chemical reactions, and mechanical = complexity that constrain commercial success for cellulose hydrolysis of = woody materials, as I have said before to this forum. =20 If you MUST go from MSW to liquid fuel use a gasifier to convert the MSW = into CO and H2 and then react them produce either diesel fuel via FT = synthesis, or methanol for fuel. There is also a proven process that = converts methanol into high-octane gasoline. It is better just to burn MSW for boiler fuel in small local units, and = then gasify coal on a very large-scale for liquid fuels as needed. Coal = gasification is already commercial for petrochemicals at Kingsport Tenn. = Before coal is gasified commercially for transportaion fuels, natural = gas and natural gas liquids will be reformed/gasified for FT synthesis = into transportation fuels. This conversion is an area of active = planning and engineering by several major energy companies today. Shell = already has a commercial plant in Malaysia that produces premium no-S = no-N diesel fuel from natural gas and natural gas liquids. =20 Thanks for renewing the discussion of cellulose hydrolysis. Its = continued failure needs to be repeated for this group every few months. Harry The Gasification List is sponsored by USDOE BioPower Program http://www.eren.doe.gov/biopower/ and PRM Energy Systems http://www.prmenergy.com -- eGroups Sponsor -~-~ eLerts It's Easy. It's Fun. Best of All, it's Free! http://click.egroups.com/1/9699/0/_/837408/_/975524847/ -_- Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html To unsubscribe, send an email to: [EMAIL PROTECTED]
