Catalyst for desulfurization and deodorization of gasoline and method for preparation of the same and use thereof

US8501657B2 · kind B2 · utility

Assignee

• DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES · CN

Inventors

• Can Li · Dalian, CN
• Zongxuan Jiang · 东风镇, CN
• Yongna Zhang · Dalian, CN
• Hongying Lv · Dalian, CN
• Boyu Zhang · Seattle, US

Key dates

• Filing date: Nov 20, 2008
• Grant date: Aug 6, 2013
• Expiry date: Jul 28, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2231/62
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A catalyst for the desulfurization and deodorization of gasoline, which is expressed by the formula: QlBmHn[AxMyOz](1+m+n)−, where: Q denotes a quaternary ammonium cation consisting of R1R2R3R4N+, in which R1, R2, R3, and R4 each denotes independently a C1 to C20 saturated alkyl group, respectively, provided that at least one of R1, R2, R3, and R4 denotes a C4 to C20 saturated alkyl group; B denotes a metal cation of Na+ or/and K+; H denotes a hydrogen atom; A denotes a central atom of B, P, As, Si or Al; M denotes a coordinated atom of W or Mo; O denotes an oxygen atom; 1≦l≦10, 0≦m≦3, 0≦n≦3, l+m+n≦14, x=1 or 2, 9≦y≦18, 34≦z≦62, and l, m, n, y and z all are integers. A method of the desulfurization and deodorization of gasoline by using the catalyst comprises the steps of: mixing the catalyst and an aqueous solution of hydrogen peroxide, and then adding the gasoline to react them with stirring under conditions of 25 to 90° C. and 0.1 to 1 MPa for 10 to 180 min. An odorless gasoline can be obtained through settlement or centrifugation, and the catalyst is recovered.