Catalyst for selective hydrogenation, its preparation process and application

US6797669B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION · CN

Inventors

• Qianwen Zhang · Kitakyushu, JP
• Han Zhang · Nanhu, CN

Key dates

• Filing date: Dec 27, 2001
• Grant date: Sep 28, 2004
• Expiry date: Apr 8, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2523/50
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A catalyst for selective hydrogenation of alkynes and dienes, its preparation process and application. The catalyst has an inorganic oxide support, a major active component palladium, and a Group IB metal promoter. The active components are uniformly distributed in the catalyst body within the thickness between the support surface and the depth of more than 300 &mgr;m. The catalyst of the present invention has high activity, high selectivity, ability to resist sulfur and arsenic poisoning. The catalyst is particularly applicable to C2-C3 fraction with any concentrations of hydrogen and CO.