OXIDATIVE COUPLING OF METHANE OVER NATURAL MANGANESE OXIDE

被引：8

作者：

IOFFE, LM ^{[1
]}

LOPEZ, T ^{[1
]}

BORODKO, YG ^{[1
]}

GOMEZ, R ^{[1
]}

机构：

[1] UNIV AUTONOMA METROPOLITANA IZTAPALAPA,DEPT CHEM,MEXICO CITY 09340,DF,MEXICO

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1995年 / 98卷 / 01期

关键词：

ETHANE; IR SPECTROSCOPY; ISOTOPIC METHANE; MANGANESE CATALYSTS; METHANE; OXIDATIVE COUPLING;

D O I：

10.1016/1381-1169(94)00079-4

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：

Oxydehydrogenative coupling of methane to higher hydrocarbons has been achieved with high selectivity towards C-2 products over natural mineral manganese oxides. Oxide treatments under hydrocarbon atmosphere show that the reduction of manganese ions Mn(IV), Mn(III) to Mn(II) is mainly responsible for the catalyst deactivation. The tests using CH4 + CD4 equimolecular mixtures and the analysis of the (HD)C-2 products by cryospectroscopic IR showed that ethane is the primary product. No evidence of CH2 species in the gas phase was observed.

引用

页码：25 / 34

页数：10

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