I have been lurking at this group for a couple of weeks as I discover the
process of WVO conversion to bio-diesel.
Just today I chose to contact a few local sources, the first to respond
replied with a message that he uses shortening (I assume vegetable source)
for his potato chip wagon.
Can shortening be used for this purpose? Is it more complicated than other
sources?
Try the list archives, try searching for "shortening" or
"hydrogenated". For "hydrogenated" you get this list of finds:
http://infoarchive.net/sgroup/biofuel/?keywords=Hydrogenated&time=all&;
usertime=2002-12-31
Which includes this message from Todd:
http://infoarchive.net/sgroup/BIOFUEL/27908/
Date: 2003-09-04
From: Appal Energy
Subject: Re: [biofuel] Question about types of oils/hydrogenation
Click here for more on this subject
1) Hydrogenated soybean oil is essentially vegetable shortening, which can
be converted into biodiesel as easily as anything else. The resulting
product should actually have a slightly higher energy content than some
other oil feedstocks as it is a more saturated carbon chain (fewer carbon
double bonds). So the answer is "Yes."
2) SOP. Heat to 120*F, filter and use. There will undoubtedly be some water
in what you get. Be sure to let the heated oil settle suffiently before
pumping off the top.
You may have a considerable amount of oil soaked solids after filtering.
Something along the lines of a cheese or cider press will remove most of the
oil prior to disposal of the solids.
Todd Swearingen
Plenty more information to be found there.
There's a photo of some shortening biodiesel here, immediately after
processing:
http://journeytoforever.org/shorteningbd.jpg
Anyway, don't start with WVO of any kind, start here:
"Where do I start?"
http://journeytoforever.org/biodiesel_make.html#start
Best wishes
Keith
Thank you for any help
Wes
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