Denitrogenation of syncrude
AssigneeAtlantic Richfield Company
InventorRobert H. Smith
Life of this patent
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Abstract
A method for reducing the nitrogen content of a syncrude feed obtained from at least one of oil shale, tar sands, and coal wherein the syncrude is mixed with an extractant-catalyst which is effective for extracting nitrogen materials from the syncrude feed and also effective as a hydrocracking catalyst for said syncrude feed. Said mixing helps form a first phase composed of a first low nitrogen syncrude product and a second phase composed of said extractant-catalyst and high nitrogen syncrude feed, separating said first and second phases from one another, and hydrocracking said second phase to produce a second low nitrogen syncrude product.
Claims6
A method for reducing the nitrogen content of a syncrude feed obtained from at least one of oil shale, tar sands, and coal, comprising
- a. mixing an extractant-catalyst with said feed, said extractant-catalyst being effective for extracting, nitrogen materials from said syncrude feed and also for serving as a hydrocracking catalyst for said syncrude feed,
- b. settling the mixture from step (a) into a first phase composed essentially of a first low nitrogen syncrude product, and a second phase composed essentially of said extractant-catalyst and high nitrogen-containing syncrude liquid,
- c. separating said first and second phases from one another, and
- d. hydrocracking said second phase to produce a second low nitrogen syncrude product.
Dependencies are inferred from the claim text.