OXIDATIVE COUPLING OF METHANE OVER LAF3/LA2O3 CATALYSTS

被引：9

作者：

AU, CT ^{[1
]}

ZHANG, YQ ^{[1
]}

NG, CF ^{[1
]}

WAN, HL ^{[1
]}

机构：

[1] XIAMEN UNIV,DEPT CHEM,XIAMEN 361005,PEOPLES R CHINA

来源：

CATALYSIS LETTERS | 1994年 / 23卷 / 3-4期

关键词：

OXIDATIVE COUPLING OF METHANE; LAF3; LA2O3; RHOMBOHEDRAL LAOF;

D O I：

10.1007/BF00811372

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：

We studied the oxidative coupling of methane over the LaF3/La2O3 (50 : 50) catalyst. The catalyst was found active even at 873 K. At 1023 K, the C2 yield was 12.7% at 26.0% CH4 conversion and 49.1% C2 selectivity. It was found to be stable and had a lifetime not less than 50 h at 1023 K. The catalyst was effective in C2H6 conversion to C2H4. XRD results indicated that the catalyst was mainly rhombohedral LaOF. It is suggested that the catalyst has ample stoichiometric defects and generates active oxygen sites suitable for methane dehydrogenation.

引用

页码：377 / 386

页数：10

共 23 条

[1] CONVERSION OF METHANE BY OXIDATIVE COUPLING
AMENOMIYA, Y
BIRSS, VI
GOLEDZINOWSKI, M
GALUSZKA, J
SANGER, AR
[J]. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1990, 32 (03): : 163 - 227
[2] OXIDATIVE COUPLING OF METHANE OVER LA2O3-CAO CATALYSTS - EFFECT OF BULK AND SURFACE-PROPERTIES ON CATALYTIC PERFORMANCE
BECKER, S
BAERNS, M
[J]. JOURNAL OF CATALYSIS, 1991, 128 (02) : 512 - 519
[3] COMPARATIVE-STUDY OF CATALYSTS FOR THE OXIDATIVE COUPLING OF METHANE
BURCH, R
SQUIRE, GD
TSANG, SC
[J]. APPLIED CATALYSIS, 1988, 43 (01): : 105 - 116
[4] KINETICS OF THE OXIDATIVE COUPLING OF METHANE OVER 1 WT-PERCENT SR/LA2O3
DEBOY, JM
HICKS, RF
[J]. JOURNAL OF CATALYSIS, 1988, 113 (02) : 517 - 524
[5] OXIDATIVE COUPLING OF METHANE OVER ALKALINE-EARTH PROMOTED LA2O3
DEBOY, JM
HICKS, RF
[J]. JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1988, (14) : 982 - 984
[6] INTERACTIONS OF METHANE WITH THO2-SIO2 SURFACE AT 1073-K
FANG, T
YEH, C
[J]. JOURNAL OF CATALYSIS, 1981, 69 (01) : 227 - 229
[7] OXIDATIVE COUPLING OF METHANE OVER SODIUM PROMOTED PRASEODYMIUM OXIDE
GAFFNEY, AM
JONES, CA
LEONARD, JJ
SOFRANKO, JA
[J]. JOURNAL OF CATALYSIS, 1988, 114 (02) : 422 - 432
[8] OXIDATIVE DIMERIZATION OF METHANE OVER A LITHIUM-PROMOTED MAGNESIUM-OXIDE CATALYST
ITO, T
WANG, JX
LIN, CH
LUNSFORD, JH
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1985, 107 (18) : 5062 - 5068
[9] OXIDATIVE COUPLING OF METHANE OVER NA+-DOPED AND RB+-DOPED MGO CATALYSTS
IWAMATSU, E
MORIYAMA, T
TAKASAKI, N
AIKA, K
[J]. JOURNAL OF CATALYSIS, 1988, 113 (01) : 25 - 35
[10] EFFECT OF STRONTIUM DOPING ON CATALYTIC BEHAVIOR OF LANTHANUM OXIDE ON OXIDATIVE COUPLING OF METHANE
LEVAN, T
CHE, M
TATIBOUET, JM
[J]. CATALYSIS LETTERS, 1992, 14 (3-4) : 321 - 329

← 1 2 3 →