Catalytic oxidation of ethylene and ethane to formaldehyde by oxygen

被引：18
|
作者：
Lou, Yinchuan [1 ]
Zhang, Qinghong [1 ]
Wang, Huichun [1 ]
Wang, Ye [1 ]
机构：
[1] Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China
来源：
JOURNAL OF CATALYSIS | 2007年 / 250卷 / 02期
基金：
中国国家自然科学基金;
关键词：
ethane; ethylene; selective oxidation; formaldehyde; molybdenum oxide; mesoporous silica;
D O I：
10.1016/j.jcat.2007.06.015
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：
The selective oxidation of ethylene by oxygen produced formaldehyde with a single-pass yield of similar to 30% at a temperature of 863 K and a contact time of 0.08 s g cm(-3) over a mesoporous silica (SBA-15)-supported molybdenum oxide catalyst. Oligomeric MoOx species and polymeric MoOx clusters were responsible for this reaction. The exploitation of a double-bed catalytic reaction mode containing Dy2O3-Li+-MgO-Cl(-)and MoOx/SBA-15 as the upstream, and the downstream catalysts converted ethane directly to formaldehyde by oxygen with a single-pass yield of 14% at 863 K. (c) 2007 Elsevier Inc. All fights reserved.
引用
收藏
页码：365 / 368
页数：4
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