Shelf life of veg oil is limitted by rancidity. Rancidity is not a limitation of biodiesel, as infernal combustion is not affected by "taste."
With appropriate steps taken to prevent algal buildup, biodiesel should have a tank life of years, depending upon the feedstock and air volume in the storage tank. Some feedstocks, such as linseed oil and hemp seed oil will dry under oxygenated conditions, such as an open tank or a tank with minimal fuel and high volumes of air for long periods. Todd Swearingen ----- Original Message ----- From: MH To: biofuel@yahoogroups.com Sent: Thursday, April 18, 2002 12:13 PM Subject: Re: [biofuel] Shelf life MH wrote Thu, 07 Mar 2002 13:46:53 -0600: > > What is the shelve - shelf life of: > . biodiesel - BD > . straight vegetable oil - SVO > . waste vegetable oil - WVO > . diesel fuel > at room temperature?? > Thank you. To the best of my knowledge, or what I've learned so far, Steve Spence answered some of my questions with this post [Thank you Steve] Subject: [biofuel] Small-scale Oilseed Production Date: Sat, 30 Mar 2002 11:16:14 -0500 http://www.attra.org/attra-pub/oilseed.html This publication describes the basic processes involved in small-scale oilseed processing. Included are a low-tech method for raw material preparation using sunflower seeds as an example; information on methods and equipment used for oil extraction; and notes on clarification, packaging, and storage. Sources for additional information and a list of suitable raw materials are provided. ------ I've added the following quotes from the publication: "Use of clean, dry containers to package and store oils can help to prevent rancidity. Sealed glass or plastic bottles are adequate. It is preferable if they are colored and kept in a dark box. The shelf life of oil can be expected to be 6-12 months if it is adequately packaged and kept away from heat and sunlight (1)." "However, unrefined vegetable oils are fragile, with limited shelf life. Therefore, some degree of refinement is necessary to ensure a usable product. All vegetable oils should be stored in a cool, dark area." ------ Would I be correct in assuming BioDiesel and Diesel fuel, both having gone threw a refinement process, would have a longer, but not much longer, shelf life than SVO ? WVO I'd guess would have a shorter shelf life then SVO due to various reasons such as microbes and water. Thank you in advance for any & all responses. Yahoo! Groups Sponsor ADVERTISEMENT Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html 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] ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Stock for $4 and no minimums. FREE Money 2002. http://us.click.yahoo.com/orkH0C/n97DAA/ySSFAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html 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/
