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Can grapeseed oil and cooking oil be used for biodiesel?
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not sure about grapeseed. probably as long as the acid content isn't to brutal. But cooking oil most defiantly. Hydrogenated oils
are difficult to work with but the typical canola/soy oils work well .In fact, most commercial BioD is made from a blend of those two.
Peanut oil works well considering the original diesel engine from Rudolf Diesel was originally designed to run on peanut oil. Yield for most oils is generally in the 80-90% range but more heavily used oils can have less yield. The ideal used cooking oil is that from sushi restaurants.
also, BioD can be made from animal fats, tallow and other organic greases.
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Thanks! This helps a lot.
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Hey, do you have any links to the science behind the bioD conversion? All I can find with google and my short patience are kits and tree huggers.
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google infopop. thats the forum I use. but I can find alot of stuff if I need to. I' also on a couple of other forums....
Sorry, not verry sobbere rite noew....
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More like the chemistry/science of what is added to what that turns the what to bioD and other stuff, and why. But with formulas, not just a doze of this and a dash of that.
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I'm about to get boring for some of you so delete this post if your not into it.
The process is called Transesterefication. converting one ester into another. An ester is a hydrocarbon chain that will bond with another molecule.
veg oil molecule is made up of 3 esters attached to a single molecule of glycerin. Veg oil is called a triglyceride.
A heavy catalyst is used such as Sodium Hydroxide or Potassium Hydroxide. The catalyst will "crack" the triglyceride to Di-glyceride and then to mono-glyceride and finally freeing the Glycerin molecule. when the esters are free from the Glycerin molecule they are allowed to bond to a single alcohol molecule. the Catalyst will combine with the glycerin and settle to the bottom of the reactor.
The result is an alkyl ester and glycerin soap.
With used cooking oil there is usually also some Free Fatty acids present. FFA's are formed with veg oil is heated in the presence of Hydrogen. AKA Hydrogenated oil.
These must be neutralized which requires additional amounts of catalyst. There is a simple test to determine the FFA content of oil. and there is a break even point where there is to much FFA'sto get a complete reaction. the Test is called a titration and I can delve into that if needed.
If the FFA content is to high then we can treat the FFA's with an even stronger acid, and convert them directly into BioDiesel through a process known as acid Esterefication. I haven't gone to deep into the science of acid esterification butI have used it with success, although a byproduct of acid esterefication is water which is not a desired ingredient in Transestereficaiton because it can harm the reaction.
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I suppose you blather on about jeeps on your oil forum
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I wish you would discuss this in technical terms...the laymans terms are
just way to oversimplified :)
So when veggie oil is about $25 at Sams Club for about 4 or 5 gallons.
How does this equate to biodeisel. when is the break even point of
buying veggie oil new and buying dino deisil?
And how do they get veggie oil out of corn and such?
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most oils are obtained from the feedstock by a press after the feedstock is dried.
Thats for oils at sams club and the likes. on the large commercial scales, they buy in bulk and its a lot cheaper than that.
problem is, the yield is not as good per acre. the highest yielding crop is oil palm. but its a controversial crop because people are clear-cutting forest to plant it which defeats the purpose of the crop.
To make BioD a 100% replacement for the nations consumption of petrol D, you need alot of acreage of feedcrops. But there is a new technology emerging around a new crop. Algae. It would take an area just a little bigger than the size of Rhode Island in Algae farms to be able to supply the entire USA with BioDiesel feedstock.
wikipedia BioDiesel. its some good interesting reading.
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sounds good to me - I wasn't that attached to Rhode Island!
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How about we take the nitrogen rich water from Salton Sea, use it to
irrigate the marginal lands surrounding it, augment it with all the crap
from LA/OC/SD megatropolis.....pump all the gray water from So Cal down
there to augment the watering. Divert any water going into Mexico from
the Colorado river into the Salton Sea to irrigate these fields.
Now we would have mass algae blooms, loots of fuel stocks which are not
affecting food stocks...and when the environmentalists complain and
convince Judges from San Francisco that have never been south of the
northern Kern county border. We reverse the flow of the Colorado from
the Gulf of California flooding the Imperial Valley and having a
permanent sport fishing, sport diving seaside gambling resorts all along
the Palm Springs border. And there would be lots of mud wompin too.
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Theres a cheap solution...
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Does this include sensual oils?
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they would have to be vegetable or animal based. petroleum based oils don't work.
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