Conversion of mixed butanes into gasoline

Details Conversion of mixed butanes into gasoline Conversion of mixed butanes into gasoline

1980-01-16

1981-06-23

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

With hydrocarbon recycle from later to earlier synthesis

585314, 585331, 585332, 585723, C07C 258

Patent

active

042752558

ABSTRACT:
A hydrocarbon conversion process for the production of motor fuel blending stocks from butanes is disclosed. The butane feed stream enters a deisobutanizer column. A normal butane-rich stream removed from the deisobutanizer is passed into an isomerization zone, with isomerization zone effluent being returned to the deisobutanizer. An isobutane-rich deisobutanizer overhead stream is passed through a dehydrogenation zone which contains a depropanizer and then into an alkylation zone. The effluent of the alkylation zone is fractionated into a product stream and recycle streams passed into the deisobutanizer and the depropanizer. The utilities cost of operating the process is lowered by integration of the heat exchange required in the process.

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