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AssigneeExxonMobil Research and Engineering Company
InventorsRobert Jay Wittenbrink, Charles John Mart, Janet Renee Clark, Jennifer Schaefer Feeley
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A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas in a hydrocarbon synthesis reactor also hydroisomerizes the synthesized hydrocarbon liquid, which comprises the slurry liquid, in one or more downcomer reactors immersed in the slurry body in the synthesis reactor. A monolithic catalyst is preferably used for the hydroisomerization, and slurry circulation down through the downcomer reactors from the surrounding slurry body, is achieved at least in part by density-difference driven hydraulics created by removing gas bubbles from the slurry passed into the downcomers. Preferably, catalyst particles are also removed before the slurry contacts the catalyst. Hydroisomerization occurs while the synthesis reactor is producing hydrocarbons, without interfering with the hydrocarbon synthesis reaction.
A process for hydroisomerizing the slurry hydrocarbon liquid produced in a slurry hydrocarbon synthesis reactor in said reactor while it is producing said liquid from a synthesis gas and wherein said slurry in said synthesis reactor comprises gas bubbles and catalyst particles in said liquid, said process comprising:
A slurry hydrocarbon synthesis process which includes hydroisomerizing hydrocarbon liquid produced in a slurry hydrocarbon synthesis reactor in one or more downcomer reactors in said synthesis reactor while it is producing said liquid from a synthesis gas and wherein said slurry in said synthesis reactor comprises gas bubbles and catalyst particles in said liquid, said process comprising:
Dependencies are inferred from the claim text.