Metathesis of ethene and 2-butene to propene on W/Al2O3-HY catalysts with different HY contents
文献类型：期刊论文
| 作者 | Huang, SJ; Liu, SL; Xin, WJ; Bai, J; Xie, SJ; Wang, QX; Xu, LY |
| 刊名 | journal of molecular catalysis a-chemical
 |
| 出版日期 | 2005-02-01 |
| 卷号 | 226期号:1页码:61-68 |
| 关键词 | metathesis ethene 2-butene propene 10W/Al2O3-xHY catalysts |
| 英文摘要 | catalysts containing 10wt.% w were prepared using al2o3-hy mixed supports with various hy contents. the catalytic performance of these catalysts for the metathesis of ethene and 2-butene to propene was determined in a fixed-bed flow reactor at 180degreesc under 0.1 mpa. the 2-butene conversion of these catalysts increases remarkably with the hy content in the range of 0-30 between 30 and 70wt.% of hy content, the conversion reaches a plateau of 60-63%, which is very close to the thermodynamic equilibrium value of similar to64%. after that, the 2-butene conversion decreases substantially. the propene, selectivity shows the similar trends. the maximum propene selectivity goes up to 88%. by the studies of nh3-tpd, h-2-tpr and uv-vis, the role of hy zeolite in the 10w/al2o3-xhy is explained in two following aspects: (i) changing the bronsted acidity of catalysts, which may affect the formation of initial carbene species; (ii) modifying the interaction between w species and support for the formation of active centers with intermediate oxidation number (w4+, w5+, w((6-y))(+) (0 < y < 1)). based on this information, the optimal hy content for 10w/al2o3-xhy catalysts is about 50-70%. (c) 2004 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | isomerization ; reduction ; wo3/al2o3 ; wo3/sio2 ; alumina |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000226532000008 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/139888]  |
| 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, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, SJ,Liu, SL,Xin, WJ,et al. Metathesis of ethene and 2-butene to propene on W/Al2O3-HY catalysts with different HY contents[J]. journal of molecular catalysis a-chemical,2005,226(1):61-68. |
| APA | Huang, SJ.,Liu, SL.,Xin, WJ.,Bai, J.,Xie, SJ.,...&Xu, LY.(2005).Metathesis of ethene and 2-butene to propene on W/Al2O3-HY catalysts with different HY contents.journal of molecular catalysis a-chemical,226(1),61-68. |
| MLA | Huang, SJ,et al."Metathesis of ethene and 2-butene to propene on W/Al2O3-HY catalysts with different HY contents".journal of molecular catalysis a-chemical 226.1(2005):61-68. |
入库方式： OAI收割
来源：大连化学物理研究所
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