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US 4,051,020 AGranted
Hydrocarbon conversion process for removing sulfur and nitrogen with passage of catalyst particles in a series of spaced beds
AssigneeCommonwealth Oil Refining Co., Inc.
InventorGerald W. G. McDonald
Life of this patent
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Abstract
A gas phase and a liquid phase pass countercurrently through a reaction vessel, and solid particles move from stage to stage in the reactor concurrently with either the liquid phase or the gas phase. In one embodiment of the invention the liquid phase is a hydrocarbon oil to be treated, for example, desulphurized, the gas phase is hydrogen, and the solid particles are hydrodesulphurization catalyst particles.
Claims7
A hydrocarbon conversion process for removing sulfur and nitrogen from hydrocarbon oil;
- comprising introducing into a mulit-stage reactor a liquid hydrocarbon oil adjacent the top of said reactor and withdrawing liquid product from the bottom of said reactor, introducing a hydrogen-rich gas adjacent to the bottom of said reactor and withdrawing gaseous reaction and unreacted hydrogen from the top of said reactor, maintaining a series of spaced beds of suspended catalyst particles within said reactor, maintaining desired liquid levels of oil within each of said beds to provide suspension of catalyst particles in said oil, passing said liquid oil from one bed to the next lower bed, and separately passing said catalyst particles from one bed to the next adjaent bed.
Dependencies are inferred from the claim text.