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[greenyes] RE: plastics (not) from corn


Good points on Mideast oil, Doug.

One thing most Americans also fail to realize is that crude oil is
refined into rather distinct fractions with limited options for each.
With gasoline production being the driver for crude refining, the
fractions available for plastics production are generally in surplus.
Catalytic cracking and recombination can tweak these ratios, but it has
it's limit$. This is one reason for the proliferation of plastic
products and the somewhat de-linked relationship between crude oil costs
and resin pricing.

For an overview of the refining process, visit
http://science.howstuffworks.com/oil-refining1.htm
<http://articles.roshd.ir/articles_folder/BASEscience/chemistry/Howstuff
works%20How%20Oil%20Refining%20Works.htm>

Jay Donnaway
Solid Waste Policy Analyst
Oregon Dept of Environmental Quality
Land Quality Division
811 SW Sixth Avenue
Portland, OR 97204-1390
(503)229-6046
Fax: 229-6977
donnaway.jay@no.address
http://www.deq.state.or.us <http://www.deq.state.or.us/>



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