PROCESS CONTAINING HF ALKYLATION AND SELECTIVE HYDROGENATION

摘要

"A PROCESS CONTAINING HF ALKYLATION AND SELECTIVE HDYROGENATION" Selective hydrogenation and HF alkylation are combined in a process that employs a multifunction alkylation feed stripper for removal of light ends from both the selective hydrogenation and alkylation operations. The process combines the effluent from the selective hydrogenation operation, an isobutane feed stream and a bottoms stream from the HF stripper in the alkylation feed stripper to provide a C4-plus bottoms stream that serves as the feed to the alkylation zone and a C3-minus overhead that can be recovered as fuel gas. Significant benefit is obtained from this process when processing a mixed olefin feed of C3/C4 hydrocarbons and recovering a high purity C3 product stream ahead of the selective hydrogenation zone.