SELECTIVE HYDRODESULFURIZATION AND MERCAPTAN DECOMPOSITION PROCESS WITH INTERSTAGE SEPARATION

摘要

A process for the selective hydrodesulfurization of olefinic naphtha streams containing a substantial amount of organically-bound sulfur and olefins. The olefinic naphtha stream is selectively desulfurized in a hydrodesulfurization reaction stage. The hydrodesulfurized effluent stream is conducted to an interstage stripping zone and separated into a stripper lower boiling stream and a stripper higher boiling stream and the stripper higher boiling stream is further processed in a mercaptan destruction reaction stage to reduce the content of mercaptan sulfur in the final product.