Catalytic role of different pore systems in MCM-49 zeolite for liquid alkylation of benzene with ethylene
文献类型：期刊论文
| 作者 | Liu, Kefeng1,2; Xie, Sujuan1; Liu, Shenglin1; Xu, Guoliang1; Gao, Ningning1,2; Xu, Longya1 |
| 刊名 | journal of catalysis
 |
| 出版日期 | 2011-10-06 |
| 卷号 | 283期号:1页码:68-74 |
| 关键词 | MCM-49 zeolite Liquid alkylation Benzene Ethylene Pore system |
| ISSN号 | 待补充 |
| 产权排序 | 1,1 |
| 通讯作者 | 徐龙伢 |
| 中文摘要 | catalytic role of different pore systems in mcm-49 zeolite for liquid alkylation of benzene with ethylene |
| 英文摘要 | the properties of three types of pore systems in mcm-49 zeolite have been investigated by precoking to block the supercages and poisoning the surface pockets. most lewis acid sites (ca. 73%) are located within the supercages, while 38% of bronsted acid sites are located in the surface pockets, 28% in the sinusoidal pores and only 34% in the supercages, respectively. alkylation of benzene with ethylene mainly occurs in the surface pockets, and the contribution from the sinusoidal pores is limited. the generation of heavy aromatics in supercages results in the deactivation of mcm-49 at the early reaction stage. a moderate alkali-treatment process has been demonstrated to enlarge the opening of supercages without affecting the sinusoidal pores, resulting in improved diffusion of big molecules and hence better catalytic performance for liquid alkylation of benzene with ethylene. (c) 2011 elsevier inc. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 学科主题 | 物理化学 |
| 类目[WOS] | chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | m-xylene transformation ; n-heptane cracking ; h-mcm-22 zeolites ; phase alkylation ; external acidity ; hmcm-22 zeolite ; coke formation ; beta-zeolites ; zsm-5 zeolite ; p-xylene |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000295706400007 |
| 公开日期 | 2012-07-09 |
| 源URL | [http://159.226.238.44/handle/321008/115346]  |
| 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 Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Kefeng,Xie, Sujuan,Liu, Shenglin,et al. Catalytic role of different pore systems in MCM-49 zeolite for liquid alkylation of benzene with ethylene[J]. journal of catalysis,2011,283(1):68-74. |
| APA | Liu, Kefeng,Xie, Sujuan,Liu, Shenglin,Xu, Guoliang,Gao, Ningning,&Xu, Longya.(2011).Catalytic role of different pore systems in MCM-49 zeolite for liquid alkylation of benzene with ethylene.journal of catalysis,283(1),68-74. |
| MLA | Liu, Kefeng,et al."Catalytic role of different pore systems in MCM-49 zeolite for liquid alkylation of benzene with ethylene".journal of catalysis 283.1(2011):68-74. |
入库方式： OAI收割
来源：大连化学物理研究所
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