Method for eliminating carbon oxides in feeds to a C5 and C6 par

Chemistry of hydrocarbon compounds – Adding hydrogen to unsaturated bond of hydrocarbon – i.e.,... – With subsequent diverse conversion

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585266, 585304, 585317, 585734, 4236583, C07C 522, C07C 100, C07C 513

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057707812

ABSTRACT:
A method for reducing the benzene content and isomerizing at least a portion of a C.sub.5 /C.sub.6 paraffinic stream using a hydrogen stream containing more than 0.1 ppmv of carbon monoxide, carbon dioxide or a mixture thereof, the method comprising: charging a C.sub.5 /C.sub.6 paraffin stream containing benzene to a benzene saturation zone; charging a hydrogen stream containing at least 0.1 ppmv of at least one carbon oxide to the benzene saturation zone; saturating at least a major portion of the benzene and methanating at least a major portion of the carbon oxide present in the benzene saturation zone to produce a reduced benzene content C.sub.5 and C.sub.6 paraffinic stream and a reduced carbon oxide content hydrogen stream; recovering the reduced benzene content C.sub.5 and C.sub.6 paraffinic stream and the reduced carbon oxide content hydrogen stream; drying at least a portion of the reduced carbon oxide content hydrogen stream to produce a dried reduced carbon oxide content hydrogen stream; charging at least a portion of the dried reduced carbon oxide content hydrogen stream to a C.sub.5 /C.sub.6 isomerization zone; charging at least a portion of the reduced benzene content C.sub.5 /C.sub.6 paraffinic stream to the C.sub.5 /C.sub.6 isomerization zone; and, isomerizing at least a portion of the reduced benzene content C.sub.5 /C.sub.6 paraffinic stream in the C.sub.5 /C.sub.6 isomerization zone to produce an isomerized C.sub.5 /C.sub.6 paraffin stream.

REFERENCES:
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