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US 2018/0023008 A1Published application
Production of Xylenes from Syngas
AssigneeExxonMobil Chemical Patents Inc.
InventorsJames H. Beech, JR., Nikolaos Soultanidis, Steven E. Silverberg
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Abstract
This disclosure relates to the production of xylenes from syngas, in which the syngas is converted to an aromatic product by reaction with a Fischer-Tropsch catalyst and an aromatization catalyst. The Fischer-Tropsch catalyst and aromatization catalyst may be different catalysts or combined into a single catalyst. The aromatic product is then subjected to selective alkylation with methanol and/or carbon monoxide and hydrogen to increase its p-xylene content.
Claims11
A catalyst system for the production of para-xylene comprising:
- (a) a first catalyst comprising 1 to 50 wt. % Fe, and
- (b) a second catalyst comprising at least one medium pore size molecular sieve and at least one metal or compound thereof, wherein the metal is selected from Groups 10-14 of the Periodic Table,
- wherein the first and second catalysts are located within the same reactor bed, and
- wherein the second catalyst is selectivated by contacting the second catalyst with steam at a temperature of at least 950° C. for about 10 minutes to 10 hours.
1 more element
Dependencies are inferred from the claim text.