天然气化工2001，Vol.26Issue(2)：1-5,5.
甲烷空气催化部分氧化制合成气
与含氮合成气制二甲醚的研究
Catalytic partial oxidation of methane with air to produce syngas
and dimethyl ether synthesis from the syngas containing N2
贾美林 1李文钊 1徐恒泳 1葛庆杰 1侯守福 1徐显明 2李影辉 2张忠涛 2李宏业 2金香兰2
作者信息
- 1. 中国科学院大连化学物理研究所,
- 2. 大庆石化公司研究院,
- 折叠
摘要
Abstract
The conventional impregnation method was used to prepare Ni-based catalyst modified by La and Mg and the mechanical mixing method was used to prepare the bifunctional catalyst for DME synthesis by using the Cu-based catalyst and HZSM-5 zeolite. The catalytic performance for the partial oxidation of methane with air (CPO) was investigated. The results indicated that Ni-based catalyst modified by La and Mg had high CH4 conversion at atmosphere pressure for the CPO and the CH4 conversion decreased as the pressure increased. The carbon deposition was serious when the reaction was performed under high pressure. Adding H2O and CO2 could improve the CH4 conversion and inhibit the carbon deposition. The obtained syngas, with the ratio of H2/CO close to 2, could meet the DME synthesis need. The DME synthesis from the syngas containing N2 was studied as well. When the reaction was performed under pressure of 7.0MPa, space velocity of 1000h－1, the catalyst could keep high activity during 200h life test. The CO conversion, the DME selectivity and the DME yield could achieve 93%, 77% and 72% respectively. The high one pass CO conversion means that the feedstock gases don't need to be recycled.关键词
甲烷/部分氯化/合成气/二甲醚分类
化学化工引用本文复制引用
贾美林,李文钊,徐恒泳,葛庆杰,侯守福,徐显明,李影辉,张忠涛,李宏业,金香兰..甲烷空气催化部分氧化制合成气
与含氮合成气制二甲醚的研究[J].天然气化工,2001,26(2):1-5,5.
