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题名: Characterization of the deposit on zeolite beta catalyzed benzene propylation
作者: Bian, JJ;  Liu, J;  Wang, XS;  Liu, XM;  Bao, XH
关键词: zeolite beta ;  benzene propylation ;  deactivation ;  deposit characterization
刊名: MATERIALS CHEMISTRY AND PHYSICS
发表日期: 2003-01-15
卷: 77, 期:2, 页:406-410
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Materials Science, Multidisciplinary
研究领域[WOS]: Materials Science
英文摘要: Modified zeolite p shows remarkable performance for benzene propylation under low temperature and liquid phase. Deactivation occurred after 8000 h reaction at pilot-plant scale, due to carbonaceous deposition (coke) within the crystal of the zeolite. C-13 NMR, GC-MS, TG, TPO and nitrogen physical adsorption, combined with the solvent extraction method, were applied to determine the nature of the deposit, which mainly consists of multi-propyl-benzenes and tetra-hydro-naphthalene, as the consequence of the alkylation/cyclization of the objective product. The deposit formed initially in intracrystalline pores. The "faster" linear rate of TPO, rather than the opposite one, is suitable for coke removal in a flow of 3% (m/m) O-2/N-2 mixture. (C) 2002 Published by Elsevier Science B.V.
关键词[WOS]: ALKYLATION ;  COKE
语种: 英语
WOS记录号: WOS:000178497600017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138373
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.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Bian, JJ,Liu, J,Wang, XS,et al. Characterization of the deposit on zeolite beta catalyzed benzene propylation[J]. MATERIALS CHEMISTRY AND PHYSICS,2003,77(2):406-410.
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