An experimental study of oxidative coupling of methane in a solid oxide fuel cell with 1 wt% Sr/La2O3-Bi2O3-Ag-YSZ membrane

被引：11

作者：

Guo, XM ^{[1
]}

Hidajat, K ^{[1
]}

Ching, CB ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Chem Engn, Singapore 119260, Singapore

来源：

KOREAN JOURNAL OF CHEMICAL ENGINEERING | 1998年 / 15卷 / 05期

关键词：

oxidative coupling of methane; solid fuel cell; YSZ membrane;

D O I：

10.1007/BF02707093

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A solid oxide fuel cell with 1 wt%Sr/La2O3-BiO-Ag-YSZ membrane was applied to oxidative coupling of methane. Membrane composition had a great effect on the reaction and current generated. An increase in the current generated was accompanied by a decrease in C-2 selectivity and an increase in CH4 conversion. There is an optimal temperature for C-2-selectivity. CH4 conversion decreased, C-2-selectivity increased and current generated decreased slightly with a rise in total now rates. CH4 conversion and the current generated increased with a rise in oxygen concentration. if only C-2-selectivity and current were concerned, the higher the methane concentration, the more favourable for the cogeneration of electrical energy and ethane and ethylene. Stability of the membrane was also tested.

引用

页码：469 / 473

页数：5

共 5 条

[1] THE DIFFERENT CATALYTIC ROUTES FOR METHANE VALORIZATION - AN ASSESSMENT OF PROCESSES FOR LIQUID FUELS [J].

FOX, JM .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1993, 35 (02) :169-212

[2] OXIDATIVE COUPLING OF METHANE: AN INHERENT LIMIT TO SELECTIVITY? [J].

Labinger, Jay A. .

CATALYSIS LETTERS, 1988, 1 (11) :371-375

[3] CATALYTIC ACTIVITY-CONTROL AND SELECTIVITY-CONTROL FOR OXIDATIVE COUPLING OF METHANE BY OXYGEN-PUMPING THROUGH YTTRIA-STABILIZED ZIRCONIA [J].

OTSUKA, K ;

YOKOYAMA, S ;

MORIKAWA, A .

CHEMISTRY LETTERS, 1985, (03) :319-322

[4]

Otsuka K., 1990, Catal. Today, V6, P587, DOI [10.1016/0920-5861(90)85055-S, DOI 10.1016/0920-5861(90)85055-S]

[5] METHANE ACTIVATION TO C-2 HYDROCARBON SPECIES IN SOLID OXIDE FUEL-CELL [J].

PUJARE, NU ;

SAMMELLS, AF .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1988, 135 (10) :2544-2545

← 1 →