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/
