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AssigneeExxonMobil Research and Engineering Company
InventorsCharles John Mart, Robert Jay Wittenbrink, 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 hydrocarbons in one or more external downcomer reactor hydroisomerizing loops outside of the reactor, but which are a part of the synthesis reactor. A monolithic catalyst is used for the hydroisomerization, and slurry circulation between the synthesis reactor and the one or more hydroisomerization loops is achieved, at least in part, by density-difference driven hydraulics created by removing gas bubbles from the slurry passed into the loop. Preferably, catalyst particles are also removed before the slurry contacts the monolithic hydroisomerization catalyst.
A process for hydroisomerizing the slurry hydrocarbon liquid produced in a slurry Fischer-Tropsch hydrocarbon synthesis reactor, while said reactor 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 by the synthesis reaction while said hydrocarbon liquid is being produced from a synthesis gas comprises the steps of:
Dependencies are inferred from the claim text.