>Was wondering what you meant by "oil containing water". Oil and water do >not mix. Do you mean a pot full of oil ... with drops of water on the >bottom of the pot?? Or what?? > >Curtis
Hi Curtis Waste vegetable oil - the biodiesel feedstock-of-choice - can contain lots of water, maybe as much as a gallon or more in a 55-gallon-drum processing batch, if it's poor-quality oil (overused). The poorer the quality the higher the FFA levels and the more water content will interfere with the process, or wreck it. So water content has to be removed. Some types of processing are especially water-sensitive, for example, the acid-base two-stage process. Keeping water out of the process at all stages is a major concern - not only out of the oil, but also out of the alcohol (especially with ethanol) and out of the lye, which is hygroscopic (as is the alcohol). :-( Best wishes Keith >----- Original Message ----- >From: William Clark <[EMAIL PROTECTED]> > >Perhaps you could help me with a chemistry question. When water boils, the >temperature of a solution will not exceed 100 deg. C until all water is >boiled off, correct? If oil containing water is heated, does this still >apply? More to the point, can the absence of water be determined by a rise >in oil temp beyond 100 deg. C? I truly have no clue if any of this is right. >Your help or others would be most appreciated. > >Bill Clark ------------------------ Yahoo! Groups Sponsor ---------------------~--> Get A Free Psychic Reading! Your Online Answer To Life's Important Questions. http://us.click.yahoo.com/Lj3uPC/Me7FAA/uetFAA/FGYolB/TM ---------------------------------------------------------------------~-> 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/
