Oxidative bromination of methane on silica-supported non-noble metal oxide catalysts
文献类型：期刊论文
| 作者 | Lin, Ronghe1,3; Ding, Yunjie1,2; Gong, Leifeng1,3; Li, Jingwei1,3; Chen, Weimiao1; Yan, Li1; Lu, Yuan1 |
| 刊名 | applied catalysis a-general
 |
| 出版日期 | 2009-01-31 |
| 卷号 | 353期号:1页码:87-92 |
| 关键词 | Methane oxidative bromination Non-noble metal oxide BaO/SiO(2) (CH(3)OH + CH(3)Br): CO Metathesis Deactivation mechanism |
| 产权排序 | 1;1 |
| 通讯作者 | 丁云杰 |
| 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. |
| 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 |
| 关键词[WOS] | acetic-acid ; higher hydrocarbons ; integrated process ; manganese oxide ; ch4 ; condensation ; activation ; conversion ; ba ; co |
| 收录类别 | SCI |
| 原文出处 | false |
| 语种 | 英语 |
| WOS记录号 | WOS:000262566900013 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/101957]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 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 |
| 推荐引用方式 GB/T 7714 | 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. |
| APA | Lin, Ronghe.,Ding, Yunjie.,Gong, Leifeng.,Li, Jingwei.,Chen, Weimiao.,...&Lu, Yuan.(2009).Oxidative bromination of methane on silica-supported non-noble metal oxide catalysts.applied catalysis a-general,353(1),87-92. |
| MLA | Lin, Ronghe,et al."Oxidative bromination of methane on silica-supported non-noble metal oxide catalysts".applied catalysis a-general 353.1(2009):87-92. |
入库方式： OAI收割
来源：大连化学物理研究所
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