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A 'shrimp cocktail' to fuel cars and trucks

Call it a "shrimp cocktail" for your fuel tank. Scientists in China are reporting development of a catalyst made from shrimp shells that could transform production of biodiesel fuel into a faster, less expensive, and more environmentally friendly process. Their study is scheduled for the Aug. 20 issue of ACS' Energy & Fuels, a bi-monthly journal.

Xinsheng Zheng and colleagues note that an energy-hungry world, concerned about global warming, increasingly puts its future fuel hopes on renewable fuels like biodiesel.

Today's biodiesel production processes, however, require catalysts to speed up the chemical reactions that transform soybean, canola, and other plant oils into diesel fuel. Traditional catalysts cannot be reused and must be neutralized with large amounts of water — another increasingly scarce resource — leaving behind large amounts of polluted wastewater.

The researchers describe development of a new catalyst produced from shrimp shells. In laboratory tests, the shrimp shell catalysts converted canola oil to biodiesel (89 percent conversion in three hours) faster and more efficiently than some conventional catalysts. The new catalysts also can be reused and the process minimizes waste production and pollution, the scientists note.

"Shrimp Shell Catalyst for Biodiesel Production"
Xinsheng Zheng, Ph.D.
Department of Chemistry
College of Science
Hua Zhong Agriculture University
Wuhan, China 430070
Phone: 86-27-87281187
Fax: 86-27-87282133

Michael Woods | EurekAlert!
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