The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2014
Filed:
Dec. 17, 2009
Method for selective hydrogenation of phenylacetylene using composite bed in the presence of styrene
Siqin LI, Shanghai, CN;
Juntao Liu, Shanghai, CN;
Zhiyan Zhu, Shanghai, CN;
Junhua Zhu, Shanghai, CN;
Jun Kuai, Shanghai, CN;
Siqin Li, Shanghai, CN;
Juntao Liu, Shanghai, CN;
Zhiyan Zhu, Shanghai, CN;
Junhua Zhu, Shanghai, CN;
Jun Kuai, Shanghai, CN;
Shanghai Research Institute of Petrochemical Technology, Sinopec, Shanghai, CN;
China Petroleum & Chemical Corporation, Beijing, CN;
Abstract
The present invention discloses a process for the selective hydrogenation of phenylacetylene in the presence of styrene conducted in a combined bed, which process comprises under hydrogenation reaction conditions, passing a hydrocarbon fraction feedstock containing phenylacetylene and styrene through a combined bed reactor containing a catalyst A and a catalyst B to contact the feedstock with the catalyst A and the catalyst B in turn, wherein the catalyst A is a nickel-based catalyst, the catalyst B is at least one selected from the group consisting of palladium-based catalysts and copper-based catalysts, and a weight ratio of the catalyst A loaded to the catalyst B loaded is from 0.5:1 to 5:1.