Re: [Biofuel] Ethanol use has Environmental Downsides
Brazilian cane mills are also powered by leftover cane stalks that heat caldrons to generate steam and electric energy, an extra advantage that corn and wheat don't have. Uh... why not? If you are just using the seeds of the corn (which is stupid enough, true), what about the whole rest of the corn plant? Z ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
[Biofuel] Ethanol use has Environmental Downsides
http://www.planetark.com/dailynewsstory.cfm/newsid/39942/story.htm Reuters Summit - Ethanol use has Environmental Downsides BRAZIL: January 22, 2007 SAO PAULO - Biofuels have the potential to lessen the impact of human civilization on the environment, but even the greenest of renewable fuels production is not without its dirty underbelly, experts said. Although global warming is a growing concern among policy makers, the current trend to substitute fossil fuels with renewables is in part motivated by countries' efforts to reduce their dependence on oil from politically volatile regions. Brazil's cane ethanol distillers, with three decades experience in nationwide production and distribution, have compiled data demonstrating the fuel's advantage over fossil counterparts in the reduction of greenhouse gasses. Ethanol accounts for 40 percent of total fuels used by non-diesel powered vehicles in Brazil and represents a 30 percent reduction of greenhouse gas emissions from the transport sector, the Cane Industry Association (Unica) said. But not even the global stars of renewable fuels are free of critics who fear that increased ethanol use worldwide will hasten deforestation in the Amazon and other tropical rain forests in order to produce sugar cane. In 20 years, I doubt there will be a gasoline car on the Brazilian market. They will all be powered by ethanol, Unica President Eduardo Pereira Carvalho said during the Reuters Global Biofuel Summit. Brazil began its ethanol program 30 years ago when it was importing nearly 90 percent of oil needed for domestic use. During its growth to maturity, the cane stalk absorbs the same amount of carbon dioxide from the atmosphere as is eventually emitted during combustion of the ethanol distilled from its juices. But this is not so for ethanol made from corn in the United States or wheat in Europe. These primary materials must first be turned into sugars before fermentation, which requires the use extra fossil fuels and adds to carbon gasses emitted in the production process. Brazilian cane mills are also powered by leftover cane stalks that heat caldrons to generate steam and electric energy, an extra advantage that corn and wheat don't have. Unica estimates that Brazilian cane ethanol on average yields more than 8 times more energy than is used in the production process, compared with US corn ethanol production that yields between 1.1 to 1.7 times as much energy. This advantage should improve with the use of state-of-the-art technologies in Brazilian mills. EUROPEAN TRADE RESTRICTIONS The European Union, which just proposed the use of 10 percent biofuels for transport by 2020, signaled it will demand proof from suppliers that the product was made in a sustainable manner, a requirements that may rule out US ethanol. Environmentalists have already begun to warn that the expansion of biofuel use currently underway will represent increased use of land for planting, which could stimulate deforestation or the use of more reserve lands. We're currently working on some sort of certification system to ensure that biofuels that are imported, or the raw materials, are taken from sustainable production, EU Commission agriculture spokesman Michael Mann said. Some US producers hold greater trust in market forces. Don Endres, CEO of US ethanol producer VeraSun, said better farmers tend to squeeze out less efficient producers and bring more land under their farming practices over time. By providing a market we increase the value and that allows for better farmers to increase land, Endres said. Farmers take very good care of their soil and erosion because they invest a lot in the organic matter. Story by Inae Riveras REUTERS NEWS SERVICE ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Ethanol use
Hi Charles There is a patented information about using the zeolites at the top of the reactor , which can be very selective to adsorb and return back pure alcohol see google search using free patent site. Then you can recover the catalyst using solar energy to remove water.In the case of ethanol , the higher temperature , I am not sure that higher can fovour the reaction.Can any one have the experience to give more informatiion? With kind regars to all biofuel members yours truelyPannirselvam P.V2006/8/21, Charles List [EMAIL PROTECTED] :Hi allIt's slowly turning to spring down here in the southern hemisphere, and a young man's thoughts turn to what he's going to get up to inthose long summer evenings. Me, I think only of biofuel! I am havinggood progress and results with methanol but my long term plan is tobe completely self- sufficient and ferment my own ethanol to use in my reaction. I will first buy some denatured ethanol to practice on,and I have read what is on the JtF web-site and realise I will needto really dewater my oil, use more ethanol than methanol etc. I wouldlike to know, however, if I can increase the temperature of the reaction mixture to cut down the time taken for the reaction asethanol boils at 78C rather than 65C, and if there are any otherhints/ tips people can give through their experience of this reaction.Thanks Charles List This email was sent using Telecom SchoolZone.www.schoolzone.net.nz This email has been scanned for viruses by Telecom SchoolZone,but is not guaranteed to be virus-free.--___ Biofuel mailing listBiofuel@sustainablelists.orghttp://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever:http://journeytoforever.org/biofuel.htmlSearch the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/-- Grupo de Pesquisa em Engenharia de Custos e Processos DEQ – Departamento de Engenharia QuímicaCT – Centro de Tecnologia / UFRN, Lagoa Nova – Natal/RNCampus Universitário. CEP: 59.072-970http://pannirbr.googlepages.com/gpecufrnhomepage 3215-3769 ramal 210casa 3215-1557 ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Ethanol use
Hello Ken, Charles et al. Ethanol can be somewhat tricky to deal with when it comes to producing biodiesel. The glycerine drop is related to the amount of ethyl esters that you have created during the process. This is suggesting that you will need a certain qty of ethyl esters produced in order to have a spontaneous glycerol drop. To make sure that you have a sufficient amount, the ethanol stochiometric surplus should be at least 75% or rather 100%. The stochiometric relationships are much more important than increasing of the reaction temperature, say 5 or 10 degrees. But also note that the ethanol inserted has to be anhydrous. Best of luck to you ! Jan Warnqvist AGERATEC AB + 46 554 201 89 +46 70 499 38 45 - Original Message - From: Ken Provost [EMAIL PROTECTED] To: biofuel@sustainablelists.org Sent: Tuesday, August 22, 2006 4:40 AM Subject: Re: [Biofuel] Ethanol use On Aug 21, 2006, at 1:57 PM, Charles List wrote: I would like to know, however, if I can increase the temperature of the reaction mixture to cut down the time taken for the reaction as ethanol boils at 78C rather than 65C. You probably could, but the separation of glycerol takes such a long time with ethanol (hours maybe), and the reactants are all in solution that whole time (completely clear, single phase), that you probably don't need more than the usual heating to get the reaction to go as far as it will. -K ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
[Biofuel] Ethanol use
Hi all It's slowly turning to spring down here in the southern hemisphere, and a young man's thoughts turn to what he's going to get up to in those long summer evenings. Me, I think only of biofuel! I am having good progress and results with methanol but my long term plan is to be completely self- sufficient and ferment my own ethanol to use in my reaction. I will first buy some denatured ethanol to practice on, and I have read what is on the JtF web-site and realise I will need to really dewater my oil, use more ethanol than methanol etc. I would like to know, however, if I can increase the temperature of the reaction mixture to cut down the time taken for the reaction as ethanol boils at 78C rather than 65C, and if there are any other hints/ tips people can give through their experience of this reaction. Thanks Charles List -- -- This email was sent using Telecom SchoolZone. www.schoolzone.net.nz This email has been scanned for viruses by Telecom SchoolZone, but is not guaranteed to be virus-free. -- ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] Ethanol use
On Aug 21, 2006, at 1:57 PM, Charles List wrote: I would like to know, however, if I can increase the temperature of the reaction mixture to cut down the time taken for the reaction as ethanol boils at 78C rather than 65C. You probably could, but the separation of glycerol takes such a long time with ethanol (hours maybe), and the reactants are all in solution that whole time (completely clear, single phase), that you probably don't need more than the usual heating to get the reaction to go as far as it will. -K ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
[Biofuel] ETHANOL USE IN DIESEL ENGINES and patents
May be of interest (again): P. Subject: RE: [Biofuel] Re: ETHANOL USE IN DIESEL ENGINES I know of using mixtures of ethanol with veg oil for diesel engines, there are some patents on it. Here you can read about the mixture of castor oil and alcohol at the United States Patent Office online: http://www.uspto.gov Search can be made by number, subject(s), etc. -- United States Patent 4,929,252 Brillhart May 29, 1990 Fuel Abstract Castor oil extended by addition of an alcohol and water, the mixture then being essentially immune to phase separation or haziness or inadvertent addition of extra water contamination, of a pH range of about 4-121/2 and having a flash point above the United States government regulation permitting the fuel to be shipped interstate as an oil rather than as a volatile solvent or fuel. ** Another patent is about using a microemulsion of veg oil and ethanol about half and half with a surfactant. United States Patent 4,451,267 Schwab , et al.May 29, 1984 Microemulsions from vegetable oil and aqueous alcohol with trialkylamine surfactant as alternative fuel for diesel engines Abstract Hybrid fuel microemulsions are prepared from vegetable oil, a C.sub.1 -C.sub.3 alcohol, water, and a surfactant comprising a lower trialkylamine. For enhanced water tolerance by the fuel, the amine is reacted with a long-chain fatty acid for conversion to the corresponding trialkylammonium soap. Optionally, 1-butanol is incorporated into the system as a cosurfactant for the purpose of lowering both the viscosity and the solidification temperature * There is another one on a veg oil mixed with absolute ethanol but it needs a ketone to keep the mixture from separation in 2 phases of a vegetal oil and ethanol, the fuel is maily the veg oil and the ethanol is used as a thinner with a phase stabilizer. - United States Patent 4,397,655 Sweeney August 9, 1983 Novel process for preparing diesel fuel Abstract A vegetable oil such as soy bean oil, extended by addition of ethanol, may be stabilized against phase separation or haziness in the event of water contamination at pH below 7 by addition thereto of additives such as 2,2-dimethoxy propane. A word of caution: There are some Injection Pumps that are lubricated by the engine oil and others relay on the lubricating properties of the fuel.If you are going to use ethanol make shure there is more than enough lubrication for the IP at any engine's working temperature. I hope this data helps. Regards. Juan -Mensaje original- De: CONTACTOS MUNDIALES [SMTP:[EMAIL PROTECTED] Enviado el: Martes 16 de Noviembre de 2004 9:51 AM Para: [EMAIL PROTECTED] Asunto: [Biofuel] Re: ETHANOL USE IN DIESEL ENGINES A message to the Forum: Ethanol has proved its worth as a neat fuel for spark ingnited engines. Brazil boasts around 4 million vehicles that run on 100% ethanol. To further prove the reliability of neat ethanol engines, Embraer in Brazil will put in service within a few months its Ipanema aircraft that will feature an ethanol engine that will increase its power by 5% over the counterpart gasoline engine, while saving 66% in energy costs, besides lowering the maintenance costs. However, using ethanol in diesel engines poses a different set of problems and challenges. I wonder if anyone in the Forum can cite cases of diesel engine conversions and/or give some sugestions to that effect. EPA claims that ethanol is a more efficient fuel than gasoline and diesel In both spark-ignited and compression-ignited engines, besides being a cleaner and a cheaper fuel. Many thanks in advance for your input. Luis R. Calzadilla Fundacion Sugar Cane Resesearch Organization Cali, Colombia [EMAIL PROTECTED] [EMAIL PROTECTED] ___ Biofuel mailing list [EMAIL PROTECTED] http://wwia.org/mailman/listinfo.cgi/biofuel Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuel archives at Infoarchive.net (searchable): http://infoarchive.net/sgroup/biofuel/
RE: [biofuel] ethanol use
Hi Craig Hi Keith FirstlyThank you Keith for the very informative info you pointed out on ethanol use in a gasoline motor. You're most welcome, glad it helped. Secondly..The amount of info I have managed to get by scounging a bit deeper. I have learnt a yard full in such a short time. At present I am building another 25 litre BD proccessor for myself and brother in law. His Isuzu diesel van has the 2.5 litre engine powering it. My proccessor is a 2 tank type, How does that work? but waiting for a promised pump to complete the little monster(my wife's affectionate name for it) She reakons it looks allien with the pipes and funny goodiescoming out of it. :-) Didn't think of that, but so does ours. Damn... now I'll have to go and paint a smiley on it. Best wishes Keith Great Craig Emmerick For those who missed out on the info..try these. Intensive Field Trial of Ethanol/Petrol Blend in Vehicles http://journeytoforever.org/biofuel_library.html#ethanoltrial http://journeytoforever.org/biofuel_library.html#ethanoltrial See also: Convert Your Car to Alcohol http://journeytoforever.org/biofuel_library.html#drane http://journeytoforever.org/biofuel_library.html#drane Ethanol and your car http://journeytoforever.org/ethanol_link.html#ethanolcar http://journeytoforever.org/ethanol_link.html#ethanolcar Yahoo! Groups Sponsor ~-- Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar. Now with Pop-Up Blocker. Get it for free! http://us.click.yahoo.com/L5YrjA/eSIIAA/yQLSAA/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/
Re: [biofuel] ethanol use
Hi Craig Hi chaps and lasses Why can't I use methalated spirits in my petrol engine? :-) Ah, the good old days... That'll need a translation for some of the list members. Petrol = gasoline, a spark-ignition engine. Is there any reason other than it been more expensive than petrol? When I looked at what makes up meths. I found out it contains about 90% ethanol and about 5% methanol. It varies, depending on where you are, various denaturants are used, including MEK, for instance. What's the colorant? Probably very little of it anyway. Could I get away with using meths, could anyone answer this for me please. Probably, yes, if the 5% methanol's all that's added. Methanol is corrosive, and so is ethanol, though less so, and much is made of that sometimes, mostly by the parties you'd expect to object. For more info, see for instance: Intensive Field Trial of Ethanol/Petrol Blend in Vehicles http://journeytoforever.org/biofuel_library.html#ethanoltrial A complete report covering all of the applications of ethanol in gasoline, in new and used engines: ERDC Project No 2511 Intensive Field Trial of Ethanol/Petrol Blend in Vehicles. This trial showed no harm to any engines, and documented the benefits. This is the Executive Summary, compliments of Apace Research Ltd -- 10 pages, 32kb Acrobat file. Also see The Manual for the Home and Farm Production of Alcohol Fuel in the Biofuels Library. There's a lot of info in the list archives. See also: Convert Your Car to Alcohol http://journeytoforever.org/biofuel_library.html#drane Ethanol and your car http://journeytoforever.org/ethanol_link.html#ethanolcar HTH Best wishes Keith Thanks Craig Emmerick Yahoo! Groups Sponsor ~-- Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar. Now with Pop-Up Blocker. Get it for free! http://us.click.yahoo.com/L5YrjA/eSIIAA/yQLSAA/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/
RE: [biofuel] ethanol use
Hi Keith FirstlyThank you Keith for the very informative info you pointed out on ethanol use in a gasoline motor. Secondly..The amount of info I have managed to get by scounging a bit deeper. I have learnt a yard full in such a short time. At present I am building another 25 litre BD proccessor for myself and brother in law. His Isuzu diesel van has the 2.5 litre engine powering it. My proccessor is a 2 tank type, but waiting for a promised pump to complete the little monster(my wife's affectionate name for it) She reakons it looks allien with the pipes and funny goodiescoming out of it. Great Craig Emmerick For those who missed out on the info..try these. Intensive Field Trial of Ethanol/Petrol Blend in Vehicles http://journeytoforever.org/biofuel_library.html#ethanoltrial http://journeytoforever.org/biofuel_library.html#ethanoltrial See also: Convert Your Car to Alcohol http://journeytoforever.org/biofuel_library.html#drane http://journeytoforever.org/biofuel_library.html#drane Ethanol and your car http://journeytoforever.org/ethanol_link.html#ethanolcar http://journeytoforever.org/ethanol_link.html#ethanolcar http://152.107.42.100/RocketSeed/mail/433a313a313833323636323a323236313a2d323a3131 DISCLAIMER : Volkswagen of South Africa (Pty) Ltd Any views expressed in this message are those of the individual sender. No liability shall attach whatsoever to VWSA from this communication except where the sender is acting on specific authority of VWSA, such authority being public record and acknowledged by VWSA by nature of the employee's functions. This document may in no way be photocopied, printed, scanned or electronically duplicated for any purposes other than that for which it was originally intended. If you are not the intended recipient of this communication, please discard this message and notify VWSA immediately at [EMAIL PROTECTED] [Non-text portions of this message have been removed] Yahoo! Groups Sponsor ~-- Yahoo! Domains - Claim yours for only $14.70 http://us.click.yahoo.com/Z1wmxD/DREIAA/yQLSAA/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/
[biofuel] ethanol use
Hi chaps and lasses Why can't I use methalated spirits in my petrol engine? Is there any reason other than it been more expensive than petrol? When I looked at what makes up meths. I found out it contains about 90% ethanol and about 5% methanol. Could I get away with using meths, could anyone answer this for me please. Thanks Craig Emmerick http://152.107.42.100/RocketSeed/mail/433a313a313832303039363a323236313a2d323a3131 DISCLAIMER : Volkswagen of South Africa (Pty) Ltd Any views expressed in this message are those of the individual sender. No liability shall attach whatsoever to VWSA from this communication except where the sender is acting on specific authority of VWSA, such authority being public record and acknowledged by VWSA by nature of the employee's functions. This document may in no way be photocopied, printed, scanned or electronically duplicated for any purposes other than that for which it was originally intended. If you are not the intended recipient of this communication, please discard this message and notify VWSA immediately at [EMAIL PROTECTED] [Non-text portions of this message have been removed] Yahoo! Groups Sponsor ~-- Yahoo! Domains - Claim yours for only $14.70 http://us.click.yahoo.com/Z1wmxD/DREIAA/yQLSAA/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/
