中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Oxidative bromination of methane on silica-supported non-noble metal oxide catalysts
作者: Lin, Ronghe1, 3;  Ding, Yunjie1, 2;  Gong, Leifeng1, 3;  Li, Jingwei1, 3;  Chen, Weimiao1;  Yan, Li1;  Lu, Yuan1
通讯作者: 丁云杰
关键词: Methane oxidative bromination ;  Non-noble metal oxide ;  BaO/SiO(2) ;  (CH(3)OH + CH(3)Br): CO ;  Metathesis ;  Deactivation mechanism
刊名: APPLIED CATALYSIS A-GENERAL
发表日期: 2009-01-31
DOI: 10.1016/j.apcata.2008.10.029
卷: 353, 期:1, 页:87-92
收录类别: SCI
文章类型: Article
部门归属: 8
项目归属: 805
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Life Sciences & Biomedicine
类目[WOS]: Chemistry, Physical ;  Environmental Sciences
研究领域[WOS]: Chemistry ;  Environmental Sciences & Ecology
英文摘要: Oxidative bromination of methane, mediated by HBr/H(2)O (solution), provides an original route for the production of oxygenates and gasoline directly from natural gas. However, the reported catalysts for this reaction all involved noble metals. From the consideration of replacing noble metal catalysts with cheaper oxides, various silica-supported oxide catalysts were surveyed. It was found that the redox ability of different metals had a strong impact on the product distribution. On the catalysts with metals that lack facile redox ability, such as BaO/SiO(2), both CH(3)Br and CO were main products. Otherwise, deep oxidation proceeded. Moreover, methanol was firstly reported in this system. In order to obtain a molar ratio of (CH(3)OH + CH(3)Br): CO = 1, which can provide a perfect feedstock for the synthesis of acetic acid, the process variables were optimized on BaO/SiO(2). It was demonstrated that 44.0% methane conversion and 95% total selectivity of CH(3)Br, CH(3)OH and CO could be achieved at 620 degrees C. and the molar ratio of (CH(3)Br + CH(3)OH): CO was close to 1. Time-on-stream tests showed declined catalytic performance after 30 h. The results from N(2)-adsorption, XRF and XRD implied that aggregation of barium particles occurred, making the metathesis between BaO and BaBr(2) difficult. The functions of BaO were also proposed. Additionally, the activity data were compared with those of noble metal catalysts. (C) 2008 Elsevier B.V. All rights reserved.
关键词[WOS]: ACETIC-ACID ;  HIGHER HYDROCARBONS ;  INTEGRATED PROCESS ;  MANGANESE OXIDE ;  CH4 ;  CONDENSATION ;  ACTIVATION ;  CONVERSION ;  BA ;  CO
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000262566900013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/101957
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Appl Catalysis Lab, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Recommended Citation:
Lin, Ronghe,Ding, Yunjie,Gong, Leifeng,et al. Oxidative bromination of methane on silica-supported non-noble metal oxide catalysts[J]. APPLIED CATALYSIS A-GENERAL,2009,353(1):87-92.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Lin, Ronghe]'s Articles
 [Ding, Yunjie]'s Articles
 [Gong, Leifeng]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Lin, Ronghe]‘s Articles
 [Ding, Yunjie]‘s Articles
 [Gong, Leifeng]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace