Oxidative coupling of methane by carbon dioxide: A highly C-2 selective La2O3/ZnO catalyst

被引：42

作者：

Chen, CL ^{[1
]}

Xu, YD ^{[1
]}

Li, GJ ^{[1
]}

Guo, XX ^{[1
]}

机构：

[1] CHINESE ACAD SCI,DALIAN INST CHEM PHYS,STATE KEY LAB CATALYSIS,DALIAN 116023,PEOPLES R CHINA

来源：

CATALYSIS LETTERS | 1996年 / 42卷 / 3-4期

关键词：

carbon dioxide as the oxidant; oxidative coupling of methane; La2O3/ZnO;

D O I：

10.1007/BF00810680

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the oxidative coupling of methane by carbon dioxide, La2O3/ZnO catalysts were found to have high C-2 selectivity and good stability. The coupling selectivity on La2O3/ZnO is about 90%, which is much higher than that on pure La2O3 or ZnO. The consumption ratio of carbon dioxide to methane is approximately one. X-ray diffraction analysis reveals that the structural forms of the oxides are unchanged during the reaction. The reaction mechanism for C-2 formation is discussed.

引用

页码：149 / 153

页数：5

共 20 条

[1] UTILIZATION OF CO2 IN THE OXIDATIVE COUPLING OF METHANE OVER PBO-MGO AND PBO-CAO [J].

AIKA, K ;

NISHIYAMA, T .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1988, (01) :70-71

[2]

AIKA K, 1988, 9TH P INT C CAT CALG, V2, P907

[3]

[Anonymous], 1989, Catalysis Today, DOI [DOI 10.1016/0920-5861(89)85023-0, 10.1016/0920-5861(89)85023-0]

[4] CONVERSION OF METHANE WITH CARBON-DIOXIDE INTO C-2 HYDROCARBONS OVER METAL-OXIDES [J].

ASAMI, K ;

FUJITA, T ;

KUSAKABE, K ;

NISHIYAMA, Y ;

OHTSUKA, Y .

APPLIED CATALYSIS A-GENERAL, 1995, 126 (02) :245-255

[5] EFFECT OF OXIDANTS ON THE OXIDATIVE COUPLING OF METHANE OVER A LEAD-OXIDE CATALYST [J].

ASAMI, K ;

SHIKADA, T ;

FUJIMOTO, K .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1991, 64 (01) :266-271

[6] ADSORPTION OF CARBON-MONOXIDE AND CARBON-DIOXIDE ON ANNEALED AND DEFECT ZINC-OXIDE (0001) SURFACES STUDIED BY PHOTOELECTRON-SPECTROSCOPY (XPS AND UPS) [J].

AU, CT ;

HIRSCH, W ;

HIRSCHWALD, W .

SURFACE SCIENCE, 1988, 197 (03) :391-401

[7] INTERACTION OF CARBON-DIOXIDE WITH OXIDIZED LA/CU(111) [J].

DEASHA, AM ;

NIX, RM .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1995, 91 (20) :3611-3617

[8]

EKSTROM A, 1990, APPL CATAL, V62, P235

[9]

Hayward D., 1964, CHEMISORPTION, V2nd

[10] SYNTHESIS OF ETHYLENE VIA OXIDATIVE COUPLING OF METHANE .1. DETERMINATION OF ACTIVE CATALYSTS [J].

KELLER, GE ;

BHASIN, MM .

JOURNAL OF CATALYSIS, 1982, 73 (01) :9-19

← 1 2 →