Hydrodesulfurization process with upstaged reactor zones

Details Hydrodesulfurization process with upstaged reactor zones Hydrodesulfurization process with upstaged reactor zones

C - Chemistry, Metallurgy

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C10G 45/00 (2006.01) C10G 49/00 (2006.01) C10G 65/04 (2006.01)

Patent

CA 1072900

HYDRODESULFURIZATION PROCESS WITH UPSTAGED REACTOR ZONES Abstract of the Disclosure A process for the hydrodesulfurization of residual oil in a plurality of catalyst zones in series with the up- stream reactor being removed periodically for a catalyst change. When an upstream zone is taken off-stream for a catalyst change, the fresh feed oil is passed to a succeeding downstream zone so that the downstream catalyst zone is upstaged to the status of an upstream catalyst zone. When a zone is returned to service after a catalyst change, it enters the process as a downstream reactor in the series. - 1 -

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