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New process derives 'green gasoline' from plant sugars
Date:9/19/2008

the formation of an organic oil-like solution floating on top of the water. The oil layer, which is easily transportable, contains molecules of acids, alcohols, ketones and cyclics, which Dumesic calls "functional intermediates." These molecules are the precursors to fuel.

Unlike petroleum, plant sugars contain equal numbers of carbon and oxygen atoms, making it difficult to create high-octane or cetane fuels. The solution is to remove almost all the oxygen atoms, leaving only a few to keep the molecules reactive. The reactive molecules then can then be "upgraded" into different forms of fuel, and Dumesic's team has demonstrated three such upgrading processes.

"This is the same fuel we're currently using, just from a different source," says Dumesic. "It's not something that burns like it it is it."


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Contact: James Dumesic
dumesic@engr.wisc.edu
608-263-0288
University of Wisconsin-Madison
Source:Eurekalert

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