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【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★
感谢参与，应助指数 +1
wlyne06: 金币+10, ★★★★★最佳答案 2014-04-25 10:09:25
oven1986: 检索EPI+1, 感谢应助！ 2014-04-25 10:33:35
这是这篇文章的SCI收录信息
Size Effect of HZSM-5 Zeolite on Catalytic Conversion of Methanol to Propylene
作者:Yao, M (Yao Min)[ 1,2 ] ; Hu, S (Hu Si)[ 3 ] ; Wang, J (Wang Jian)[ 2 ] ; Dou, T (Dou Tao)[ 3 ] ; Wu, YP (Wu Yong-Ping)[ 1 ]
ACTA PHYSICO-CHIMICA SINICA
卷: 28 期: 9 页: 2122-2128
DOI: 10.3866/PKU.WHXB201206211
出版年: SEP 2012
查看期刊信息
摘要
Catalytic conversion of methanol to propylene (MTP) by HZSM-5 zeolite is of great importance in industrial applications. In this paper, a series of HZSM-5 zeolites with different crystal sizes were synthesized by adjusting the initial gel composition, crystallization temperature, and crystallization time. The crystal structure, size, morphology, pore structure, and acidity of HZSM-5 were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), nitrogen adsorption, and temperature-programmed desorption of ammonia (NH3-TPD). The catalytic activity and stability of HZSM-5 with different crystal sizes for MTP were evaluated on a continuous flowing fixed-bed reactor. Coke deposited on HZSM-5 was analyzed by thermogravimetric (TG) analyzer. Results indicated that with smaller crystal size, HZSM-5 zeolite had larger surface area and pore volume, higher density of pore openings, and shorter path length of micropore channels that prevent side reactions. For MTP reaction, smaller crystal sizes of HZSM-5 showed a higher resistance and better tolerance to coke, and longer catalytic lifetime. The lowering of both the total and strong acidity on HZSM-5 with smaller crystal size favored a higher selectivity of target product, propylene.
关键词
作者关键词:HZSM-5 zeolite; Crystal size; Methanol; Propylene; Acid property; Coke deposition
KeyWords Plus IMETHYL ETHER; LIGHT OLEFINS; MTP REACTION; SAPO-34; ZSM-5; PERFORMANCE; H-ZSM-5; SPECTROSCOPY; PHOSPHORUS; CRACKING
作者信息
通讯作者地址: Wu, YP (通讯作者)
显示增强组织信息的名称 Xian Univ Sci & Technol, Sch Energy Engn, Xian 710054, Peoples R China.
地址:
显示增强组织信息的名称 [ 1 ] Xian Univ Sci & Technol, Sch Energy Engn, Xian 710054, Peoples R China
[ 2 ] Shen Hua Ningxia Coal Ind Grp Co Ltd, Yinchuan 750011, Peoples R China
显示增强组织信息的名称 [ 3 ] China Univ Petr, China Natl Petr Corp, Key Lab Catalysis, Beijing 102249, Peoples R China
电子邮件地址:wuyp@xust.edu.cn
基金资助致谢
基金资助机构 授权号
National Key Technologies R & D Program of China
2007BAA08B05
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出版商
PEKING UNIV PRESS, PEKING UNIV, CHEMISTRY BUILDING, BEIJING 100871, PEOPLES R CHINA
类别 / 分类
研究方向:Chemistry
Web of Science 类别:Chemistry, Physical
文献信息
文献类型:Article
语种:Chinese
入藏号: WOS:000308627200016
ISSN: 1000-6818
期刊信息
Impact Factor (影响因子): Journal Citation Reports®
其他信息
IDS 号: 003QU
Web of Science 核心合集中的 "引用的参考文献": 23
Web of Science 核心合集中的 "被引频次": 1 |
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