Hydroprocessing reactor with enhanced product selectivity
AssigneeExxon Research & Engineering Co.
InventorsRamesh Gupta, Edward S. Ellis
Life of this patent
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Abstract
Petroleum reactors are provided which are comprised of one or more serially disposed reaction zones, each zone containing a suitable catalyst, wherein each reaction zone is followed by a non-reaction zone. One or more of said reaction zones contains a vapor by-pass means such that the vapor from one or more upstream non-reaction zones by-passes one or more downstream reaction zones and is introduced into a downstream non-reaction zone.
Claims10
A reactor for reacting a petroleum or petrochemical feedstock, at elevated temperatures and pressures, in the presence of a vapor phase, which reactor is comprised of two or more serially disposed reaction zones wherein each reaction zone contains a suitable catalyst and wherein each reaction zone is immediately followed by a non-reaction zone and wherein one or more of the reaction zones includes vapor by-pass means in fluid communication between an upstream non-reaction zone and a downstream non-reaction zone for allowing a portion of the vapor product from the upstream non-reaction zone to pass directly to a downstream non-reaction zone without contacting the catalyst of the by-passed reaction zone.
Dependencies are inferred from the claim text.