Isomerization of benzene-containing feedstocks
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United States of America Patent
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May 19, 2009
Grant Date -
Nov 20, 2008
app pub date -
May 18, 2007
filing date -
May 18, 2007
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Abstract
The benzene content in a gasoline pool is reduced by a process that hydrogenates a benzene-containing isomerization zone feedstream. The additional cyclic hydrocarbons produced by the saturation of benzene can be processed in the isomerization zone for ring opening to increase the available paraffinic feedstock or the isomerization zone can be operated to pass the cyclic hydrocarbons through to a product recovery section. The isomerization zone feedstream is treated to remove contaminants and dried before entering the hydrogenation zone.
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