Chemistry of hydrocarbon compounds – Saturated compound synthesis – By isomerization
Patent
1991-12-23
1994-07-05
Garvin, Patrick P.
Chemistry of hydrocarbon compounds
Saturated compound synthesis
By isomerization
585739, 585741, 585748, C07C 513
Patent
active
053269250
ABSTRACT:
An isomerization process maximizes the production of 2,3-dimethylbutane by using an arrangement of two reaction zones that operate at low conversion conditions to maximize the production of a methyl pentane containing intermediate and limit the interconversion of 2,3-dimethylbutane to 2,2-dimethylbutane. The process converts a feed comprising normal hexane in a first reaction zone. The effluent from the first reaction zone has a high concentration of methyl pentanes which is separated from normal hexane and passed to a second separation section that receives the effluent from a second reaction zone. Methyl pentanes from the first and second reaction zone effluents enter the second reaction zone for conversion to dimethylbutane in a high 2,3-dimethylbutane to 2,2-dimethylbutane ratio. In this manner the process produces a principally dimethylbutane product having a relatively high octane rating as a result of the high 2,3-dimethylbutane concentration.
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Garvin Patrick P.
Irzinski E. D.
McBride Thomas K.
Tolomei John G.
UOP
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