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Getting it really cold means removing heat. Whether you remove heat or
add heat it takes time and energy. Adding heat would be a more
efficient process unless you live in the arctic and can let good old
mother nature do the work for you. BTW someone recently passed me a
manual written by a woman who shall remain nameless that is for sale
about making biodiesel. It says that heating oil for dewatering is a
very inefficient process. An electrical resistance heater is as close
to 100 percent efficient as anything I can imagine. Just be careful
about heat density. Too much power confined to too small an area will
degrade the oil at the heater surface. Better to use several low
density heaters to speed things up. Joe Jason & Katie wrote: what about applejack style dewatering? get it REALLY cold so the oil solidifies, or the water freezes, whichever comes first and screen it out? thats how the old folks used to make apple whiskey for hard cider when my grandma was a kid. ----- Original Message ----- From: "Ryan Pope" <[EMAIL PROTECTED]> To: <biofuel@sustainablelists.org> Sent: Wednesday, April 26, 2006 12:19 PM Subject: [Biofuel] WVO-Water Separation: coalescer mediaI'm trying to think of alternate ways to reduce/eliminate water in WVO that are both easy (i.e. passive) and don't involve the energy use of heating a bulk volume of oil to near water BP. Coalescing media comes to mind, has anybody every looked into this further or heard of its use in biodiesel production? All I see on JtF is variations on heating and settling. If you aren't familiar with coalescer media, it works because as the oil-water mix is passed though the media, the small suspended drops of water tend to group together into larger and larger drops of free water that will then separate by gravity on the downstream side of the media. An example video can be seen at http://www.kaydonfiltration.com/tech_video.htm Not sure on cost of the bulk media yet. Thanks, Ryan Pope _________________________________________________________________ On the road to retirement? Check out MSN Life Events for advice on how to get there! http://lifeevents.msn.com/category.aspx?cid=Retirement _______________________________________________ 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/ -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.385 / Virus Database: 268.4.6/324 - Release Date: 4/25/2006_______________________________________________ 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/ |
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