About 26 million people in rural China produce and use biogas for cooking and lighting. China has sound experience in running diesel and gasoline engines with biogas. Renewable energies are expected to provide 10% of the national energy consumption, electricity generated by biological materials to reach 5.5 million kW, and 2.2 million tons of ethanol and 200,000 tons of biodiesel are expected to be produced by 2010.

Castor oil is traditionally known for the medicinal use of its main component, Ricinoleic acid, which excerts anti-flammatory effects. It, however, has numerous other applications in transportation, cosmetics and manufacturing industries. Leading producers of castor oil are India, China and Brazil who account for 90% of the area and production of castor oil, which is now increasingly traded in commodity exchanges.

Excellent article on Biodiesel Kits, explaining different aspects.

A few facts about biodiesel and the process used to make it at home

Green fuel: A startup has developed a method for converting the algae shown here into fuel. Credit: Solazyme

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Biodiesel recipe for making biodiesel at home.

Biodiesel turbine fuel kerosene.