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US 12,312,302 B2Granted
Transalkylation of alkylated phenols
AssigneesUop LLC, China Petroleum & Chemical Corporation
InventorsSomphonh Peter Phivilay, Neelesh Rane, Liwei Guo, Zhenhua Zhou
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Abstract
Transalkylation processes using catalysts comprising three dimensional 12 membered ring zeolites with a combination of small and large pores are described. These catalysts have increased conversion of alkylphenols to phenol, cresols, and alkylbenzenes from coal-derived liquid streams compared to catalysts consisting of HZSM-5 zeolite.
Claims18
A process for transalkylation comprising:
- transalkylating a coal-derived liquid stream comprising alkylphenols in a transalkylation reaction zone under transalkylation conditions in the presence of a co-reactant and a transalkylation catalyst comprising about 50% or more HBeta zeolite and 1 to 40% HZSM-5 zeolite to produce a transalkylation effluent stream comprising one or more of phenol, cresols, and alkylbenzenes, the process having increased conversion of alkylphenols to phenol, cresols, and alkylbenzenes compared to a catalyst consisting of HZSM-5 zeolite.
Dependencies are inferred from the claim text.