Your Questions About Biodiesel Production

admin answers:

Algae renews in a shorter time frame, uses less resources to produce, and can be used to reduce Co2 emissions from manufacturing or energy production.

admin answers:

PUFAs are long-chain fatty acids containing two or more double bonds.
They provide structural & functional characteristics, and are involved in a wide range of biological components including membranes (in phospholipids).
Equally important PUFAs serve as precursors for conversion into metabolites that regulate critical biological functions.
Biodiesel is a non-petroleum and environmentally-friendly alternative to petroleum-based diesel fuel and not fatty acid.
PUFA is fatty acid it is not used!

admin answers:

To answer your question it is transformed by means of transesterification. In a nut shell it means mixing a strong chemical (usually an alcohol) with waste oil to restructure the esther chains and make the solution more viscous (means it can flow, unlike glue or jelly). There is some glycerol left over which must be drained out and the diesel itself must be “washed” before it can be used.

Http://en.wikipedia.org/wiki/Biodiesel_production

Don’t use wikipedia as your source. Scroll to the bottom of the web page and check out some of the sources in the “External Links” section.

admin answers:

I think like for sugar it grinds up the pulp boils it and add chemicals than mix it with gas.

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Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials, and often have a characteristic pleasant, fruity odor. This leads to their extensive use in the fragrance and flavour industry.

Actually in biodiesel production there will be chemical reaction between oleic acid with methanol, that is acid esterification

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Biodiesel fuel was prepared by a two-step reaction: hydrolysis and methyl esterification. Hydrolysis was carried out at a subcritical state of water to obtain fatty acids from triglycerides of rapeseed oil, while the methyl esterification of the hydrolyzed products of triglycerides was treated near the supercritical methanol condition to achieve fatty acid methyl esters. Consequently, the two-step preparation was found to convert rapessed oil to fatty acid methyl esters in considerably shorter reaction time and milder reaction condition than the direct supercritical methanol treatment. The optimum reaction condition in this two-step preparation was 270°C and 20 min for hydrolysis and methyl esterification, respectively….

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It depends on what process is used and quantity is needed. The lowest reasobable cost~$80/ton. $17 a barrel or 6 million BTUs is a figure based on growing, harvesting and processing biomass in large quantities. It was not a very good idea when oil was less than $20 or so but it seems oil will never get that cheap any time in the future so now its a good idea,

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Alcohol replaces the glycerin. The chemical why, I don’t know, but I am certain that INEEL in Idaho could give you the answer that you are after. As popular a fuel replacement that Bio-diesel is, your answer should be an easy find on the web.