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题名: One-pot synthesis of high silica MCM-22 zeolites and their performances in catalytic cracking of 1-butene to propene
作者: Xu, Guoliang1, 2;  Zhu, Xiangxue1;  Niu, Xionglei1, 2;  Liu, Shenglin1;  Xie, Sujuan1;  Li, Xiujie1;  Xu, Longya1
通讯作者: 徐龙伢
关键词: High silica MCM-22 ;  Synthesis ;  1-butene ;  Catalytic cracking ;  Propene
刊名: MICROPOROUS AND MESOPOROUS MATERIALS
发表日期: 2009-02-01
DOI: 10.1016/j.micromeso.2008.08.019
卷: 118, 期:1-3, 页:44-51
收录类别: SCI
文章类型: Article
部门归属: 8
项目归属: 804
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: MCM-22 zeolites with high SiO(2)/Al(2)O(3) (Si/Al(2)) ratios were synthesized by a one-pot procedure with the assisting of boron. Based on this boron-containing method, the Si/Al(2) ratios of the MCM-22 zeolites could be greatly extended from 30 to 600 in control by tuning the Si/Al(2) ratios of the starting gels. ICP-AES and (11)B MAS NMR results demonstrated that a small part of the boron still existed in the framework of the MCM-22 after calcination and ammonium exchange. However, the residual boron species had little influence on the physicochemical properties of the MCM-22 samples evidenced by XRD, BET. TG-DTA, NH(3)-TPD, and Py-IR determinations. The reaction of catalytic cracking of I-butene to propene was carried out to study the performances of the high silica MCM-22 catalysts. Increasing of the Si/Al(2) ratios in the MCM-22 zeolites suppressed the formation of byproducts such as propane and aromatics effectively, and the optimal selectivity towards propene was obtained on the sample with a Si/Al(2) ratio of 158. (C) 2008 Elsevier Inc. All rights reserved.
关键词[WOS]: DEALUMINATION ;  PRECURSORS ;  KENYAITE ;  CRYSTALS ;  AMMONIUM ;  SURFACE ;  TOLUENE ;  RATIO ;  BORON
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000262601100007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/101505
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, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Xu, Guoliang,Zhu, Xiangxue,Niu, Xionglei,et al. One-pot synthesis of high silica MCM-22 zeolites and their performances in catalytic cracking of 1-butene to propene[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2009,118(1-3):44-51.
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