Al distribution and catalytic performance of ZSM-5 zeolites synthesized with various alcohols

被引：152

作者：

Biligetu, Turgen ^{[1
]}

Wang, Yong ^{[1
]}

Nishitoba, Toshiki ^{[1
]}

Otomo, Ryoichi ^{[1
,2
]}

Park, Sungsik ^{[1
]}

Mochizuki, Hiroshi ^{[1
]}

Rondo, Junko N. ^{[1
]}

Tatsumi, Takashi ^{[3
]}

Yokoi, Toshiyuki ^{[1
,4
]}

机构：

[1] Tokyo Inst Technol, Inst Innovat Res, Midori Ku, 4259 Nagatsuta, Yokohama, Kanagawa 2268503, Japan

[2] Hokkaido Univ, Fac Environm Earth Sci, Kita Ku, Nishi 5,Kita 10, Sapporo, Hokkaido 0600810, Japan

[3] Natl Inst Technol & Evaluat, Shibuya Ku, 2-49-10 Nishihara, Tokyo 1510066, Japan

[4] JST, PRESTO, Midori Ku, 4259 Nagatsuta, Yokohama, Kanagawa 2268503, Japan

来源：

JOURNAL OF CATALYSIS | 2017年 / 353卷

关键词：

ZSM-5; Alcohol; Al distribution in framework; Constraint index; Cracking of n-hexane; MTO reaction; RESOLUTION AL-27 NMR; PROPENE OLIGOMERIZATION; N-HEXANE; FRAMEWORK; CRACKING; METHANOL; ATOMS; CONVERSION; H-ZSM-5; MCM-22;

D O I：

10.1016/j.jcat.2017.06.026

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The distribution of Al atoms in ZSM-5 has been recognized as an important factor in catalytic activity. Here, ZSM-5 zeolites were synthesized from synthetic gels containing various alcohols, including straight- and branched-chains alcohols. The effect of the alcohols in the synthetic gel on the Al distribution in the MFI framework was investigated based on (27)AI MAS NMR, Co(II) ion UV-vis DRS, and constraint index value. Thus synthesized ZSM-5 zeolites were applied to catalysts for the cracking of n-hexane and the methanol-to-olefins (MTO) reactions in order to investigate the impact of the Al distribution on the catalytic properties. A unique Al distribution in the MFI framework was achieved by the use of trimethylolethane (TME) in combination with Na cations, and thus-prepared ZSM-5 catalyst showed a long catalytic life for both the cracking of n-hexane and the MTO reaction. (C) 2017 Elsevier Inc. All rights reserved.

引用

页码：1 / 10

页数：10

共 46 条

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