Catalyst for selective hydrogenation

US6627578B2 · kind B2 · utility

Assignees

• CHINA PETROCHEMICAL CORPORATION
• Beijing Research Institute of Chemical Industry · CN

Inventors

• Liying Xu · Zhejiang, CN
• Yunxian Zhu · Beijing, CN
• Yi Yue · Beijing, CN
• Lingke Kong · Beijing, CN
• Shusheng Gao · Beijing, CN

Key dates

• Filing date: Apr 30, 2001
• Grant date: Sep 30, 2003
• Expiry date: Apr 23, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2523/89
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A catalyst for selective hydrogenation, which comprises, on the basis of the total weight of catalyst, 1-30 wt % of copper as the first active component, 0.001-5 wt % of palladium as the second active component, 0.001-6 wt % of at least one metal selected from Ag, Pt, Pb, Mn, Co, Ni, Cr, Bi, Zr and Mo as cocatalyst, and the balance of at least one support selected from alumina, silica or titania. The present invention further relates to its preparation, its use in removal of alkynes from alkyne-enriched C4 cuts through selective hydrogenation and its regeneration.