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US 2006/0149104 A1Published application
Manufacture of xylenes from reformate
AssigneeExxonMobil Chemical Patents Inc.
InventorsGary Mohr, John Buchanan, Robert Crane, Jihad Dakka, Xiaobing Feng, Larry Iaccino, Shifang Luo
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Abstract
A process is provided for the production of xylenes from reformate. The process is carried out by methylating the benzene, toluene, or both present in the reformate to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
Claims46
A process for producing xylenes from reformate, which process comprises:
- (a) forming a reformate containing benzene, toluene or mixtures thereof in methylation reaction zone;
- and
- (b) methylating at least a portion of the benzene, toluene, or mixtures thereof present in said reformate in said methylation reaction zone with a methylating agent under vapor phase conditions effective for the methylation and in the presence of a catalyst effective for the methylation and comprising an intermediate pore size molecular sieve to produce a resulting product having a higher xylenes content than said reformate;
- wherein said reformate is transferred to said methylation reaction zone without interstage separation.
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Dependencies are inferred from the claim text.