Catalytic dehydrogenation of isobutane in the presence of carbon dioxide over nickel supported on active carbon

被引：30

作者：

Ding, Jianfei ^{[1
,2
]}

Qin, Zhangfeng ^{[1
]}

Li, Xuekuan ^{[1
]}

Wang, Guofu ^{[1
]}

Wang, Jianguo ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2010年 / 315卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Dehydrogenation; Isobutane; Carbon dioxide; NiO/AC; Isobutene; Nickel species; OXIDATIVE DEHYDROGENATION; OXIDE CATALYSTS; OXYDEHYDROGENATION; PERFORMANCE; CONVERSION; ETHANE;

D O I：

10.1016/j.molcata.2009.09.015

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 dehydrogenation of isobutane to isobutene was carried out in the presence of carbon dioxide over the catalyst nickel supported oil active carbon (AC) The state and property of nickel species (NiOx) in the catalyst are relevant to its calcination temperature, because NO may be partially reduced to Ni by AC at high temperature NO and Ni species are different in the catalytic behaviors: Ni is only effective for direct dehydrogenation of isobutane. while NO is also highly active for the coupled dehydrogenation with carbon dioxide Carbon dioxide can significantly enhance the dehydrogenation of isobutane over NiO/AC through keeping NiO species, in Situ eliminating hydrogen produced and Suppressing coke formation. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：221 / 225

页数：5

共 18 条

[1] Isobutane oxydehydrogenation on Al2O3-supported transition and rare-earth metal oxides [J].