Patent ID: 7785461
Filing Date: 2010-08-31
Classification: C10G

Abstract:
1. A process for selective hydrodesulfurization of a naphtha charge containing olefins and organosulfur compounds, comprising the following steps: a) under hydrodesulfurization conditions, contacting the naphtha charge, in a first reactor charged with a hydrorefining catalyst, with a flow of hydrogencontaining a controlled admixture of at least one non-reactive compound, wherein the H b) removing H c) channeling the partially hydrodesulfurized naphtha obtained in step b) to a second reaction stage, using a reactor charged with a second hydrorefining catalyst, under similar hydrodesulfurization conditions as those in the first reactor, and contacting the partially desulfurized naphtha in the second reaction stage with a flow of hydrogen containing a controlled admixture of at least one non-reactive compound, wherein the molar fraction of H d) recovering a hydrodesulfurized naphtha while inhibiting olefin hydrogenation in such a way that the H