Chemistry of hydrocarbon compounds – Plural serial diverse syntheses – With hydrocarbon recycle from later to earlier synthesis
Reexamination Certificate
2009-04-03
2009-12-29
Dang, Thuan Dinh (Department: 1797)
Chemistry of hydrocarbon compounds
Plural serial diverse syntheses
With hydrocarbon recycle from later to earlier synthesis
C585S311000, C208S057000, C208S063000
Reexamination Certificate
active
07638665
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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Dang Thuan Dinh
Maas Maryann
UOP LLC
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