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题名: Oriented control of Al locations in the framework of Al-Ge-ITQ-13 for catalyzing methanol conversion to propene
作者: Li, Liping1, 2;  Chen, Yanyan1;  Xu, Shutao3;  Li, Junfen1;  Dong, Mei1;  Liu, Zhongwen4;  Jiao, Haijun1;  Wang, Jianguo1;  Fan, Weibin1
关键词: Al-Ge-ITQ-13 ;  Framework Al distribution ;  Methanol-to-propene process ;  Oriented control ;  Zeolite synthesis
刊名: JOURNAL OF CATALYSIS
发表日期: 2016-12-01
DOI: 10.1016/j.jcat.2016.09.007
卷: 344, 页:242-251
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: Locations of Al in the Al-Ge-ITQ-13 framework were regulated by adding different amounts of Ge and AI for the purpose of developing a potential methanol-to-propene catalyst. Ge had no significant influence on acid site number, strength, and type, but influenced acid site distribution and catalytic properties. The Al sited at T2, T5, and particularly T9 sites rapidly deactivated Al-Ge-ITQ-13, but attempts to locate AI at T3 and T6 by adjusting Ge and Al content remarkably increased its catalytic life and propene selectivity, by 686% and 44% respectively. A simple method for roughly estimating the great effects of acid site distribution and density on the catalytic life was developed by measuring the intensity of Al-27 MAS NMR signal around 51.4-53.4 ppm, even though changes in acid site density are always accompanied by alterations of acid site distribution. The hydrothermal treatment of Al-Ge-ITQ-13 confirms its potential for use in industry. (C) 2016 Elsevier Inc. All rights reserved.
关键词[WOS]: ZEOLITE STRUCTURE ITQ-13 ;  PRODUCT SELECTIVITY ;  CATALYSIS ;  HYDROCARBONS ;  MOLECULES ;  SAPO-34 ;  OLEFINS ;  NMR ;  TRANSFORMATION ;  GASIFICATION
语种: 英语
WOS记录号: WOS:000390182800025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/151821
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, 27 South Taoyuan Rd, Taiyuan 030001, Peoples R China
2.Shanxi Datong Univ, Coll Chem & Environm Engn, Datong 037009, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, 457 Zhongshan Rd, Dalian 116023, Peoples R China
4.Shaanxi Normal Univ, Sch Chem & Mat Sci, Key Lab Appl Surface & Colloid Chem, MOE, Xian 710062, Peoples R China

Recommended Citation:
Li, Liping,Chen, Yanyan,Xu, Shutao,et al. Oriented control of Al locations in the framework of Al-Ge-ITQ-13 for catalyzing methanol conversion to propene[J]. JOURNAL OF CATALYSIS,2016,344:242-251.
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