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Title

What is it?

Properties:

Process

Methods

Applications:

Current status:

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Biodiesel:

vegetable oil- or animal fat-based diesel fuel

• a vegetable oil- or animal fat-based diesel fuel consisting of long-chain alkyl: methyl, propyl or ethyl esters.

• typically made by chemically reacting lipids (e.g., vegetable oil, animal fat (tallow) with an alcohol producing fatty acid esters.

• The National Biodiesel Board (USA) also has a technical definition of "biodiesel" as a mono-alkyl ester.

What is it?

Properties:

• has better lubricating properties

• much higher cetane ratings than today's lower sulfur diesel fuels.

• reduces fuel system wear

• The calorific value of is about 37.27 MJ/kg

• varies in color —between golden and dark brown —depending on the production feedstock.

• virtually no sulfur content

Process steps

Feedstock pretreatme

nt

Determination and treatment of free fatty

acids

Reactions

Product purification

Production methods:

Some methods

are:

Supercritical process

Ultra- and high-shear in-line and batch reactors

Lipase-catalyzed method

Ultrasonic reactor method

Applications:

Tran

sport

Heat

solvent

 In Generators

Cle

anin

g O

il Sp

ills

Current status: Biodiesel production by country 2010

Germany Brazil USA Argentina France Spain Italy Indonesia Others

Thank you.