An integrated air-POM syngas/dimethyl ether process from natural gas

被引：43

作者：

Jia, ML ^{[1
]}

Li, WZ ^{[1
]}

Xu, HY ^{[1
]}

Hou, SF ^{[1
]}

Ge, QJ ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

来源：

APPLIED CATALYSIS A-GENERAL | 2002年 / 233卷 / 1-2期

关键词：

syngas; dimethyl ether; catalytic partial oxidation of methane;

D O I：

10.1016/S0926-860X(02)00120-5

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：

A Cu-Zn-Al methanol catalyst combined with HZSM-5 was used for dimethyl ether (DME) synthesis from a syngas containing nitrogen, which was produced by air-partial oxidation of methane (air-POM). Air-POM occurred at 850 degreesC, 0.8 MPa, CH4/air/H2O/CO2 ratio of 1/2.4/0.8/0.4 over a Ni-based catalyst modified by magnesia and lanthanum oxide with 96% CH4 conversion and constantly gave syngas with a H-2/CO ratio of 2/1 during a period of 450 h. The obtained N-2-containing syngas was used directly for DME synthesis. About 90% CO per-pass conversion, 78% DME selectivity and 70% DME yield could be achieved during 450 h stability testing under the pressure of 5.0 MPa. the temperature of 240 degreesC and the space velocity of 1000 h(-1). (C) 2002 Elsevier Science B. V. All rights reserved.

引用

页码：7 / 12

页数：6

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