| 摘要 |
A C4 feedstock and a C5-C6 feedstock are isomerized in a process that reduces equipment and operating expenses by utilizing a process flow scheme that provides beneficial heat integration and facilitates the use of common recovery zone while permitting a wide variation in the relative ratio of a C4 to a C5-C6 feedstock. The isomerization of the C4 feedstock first takes place in a separate reaction zone. The effluent from the C4 isomerization zone is heat exchanged against or mixed with the C5-C6 feedstock ahead of an additional isomerization zone that converts the C5-C6 hydrocarbons, and if present, normal C4 hydrocarbons, to more highly branched hydrocarbons. Effluents from both isomerization zones enter a common separation section that removes light gases from the isomerate product. <IMAGE> |
