Effect of particle size on the hydrothermal stability of zeolite beta

被引：39
作者：
Ding, Lianhui
Zheng, Ying
Hong, Yang
Ring, Zbigniew
机构：
[1] Univ New Brunswick, Dept Chem Engn, Fredericton, NB E3B 5A3, Canada
[2] Natl Ctr Upgrading Technol, Devon, AB T9G 1A8, Canada
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2007年 / 101卷 / 03期
关键词：
hydrothermal treatment; zeolite beta; stability; particle size;
D O I：
10.1016/j.micromeso.2006.12.008
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The effects of particle size, steam pressure, temperature, and duration on the hydrothermal stability of zeolite beta were studied using the Taguchi orthogonal design. The particle size, crystallinity, textural properties, acidity, and framework structure of the zeolite beta were compared before and after hydrothermal treatment. The results showed that the hydrothermal stability of zeolite beta increased with particle size decrease, and decreased with increase of steam pressure and temperature. No significant changes in particle sizes and morphologies were observed for zeolites with particle sizes between 100 nm and 500 nm, while an obvious aggregation was identified for the nano-sized sample. The total surface areas and acidity of all treated zeolites were reduced by hydrothermal treatment. After hydrothermal treatment, obvious realumination was observed for all zeolites. (c) 2006 Elsevier Inc. All rights reserved.
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收藏
页码：432 / 439
页数：8
相关论文
共 24 条
[1]   X, Y, ALUMINUM-DEFICIENT, AND ULTRASTABLE FAUJASITE-TYPE ZEOLITES .3. CATALYTIC ACTIVITY [J].
BARTHOMEUF, D ;
BEAUMONT, R .
JOURNAL OF CATALYSIS, 1973, 30 (02) :288-297
[2]  
BELLUSI G, 1995, J CATAL, V157, P27
[3]   Formation of mesopores in zeolite beta by steaming: a secondary pore channel system in the (001) plane [J].
Bernasconi, S ;
van Bokhoven, JA ;
Krumeich, F ;
Pirngruber, GD ;
Prins, R .
MICROPOROUS AND MESOPOROUS MATERIALS, 2003, 66 (01) :21-26
[4]   Characterization of nanocrystalline zeolite Beta [J].
Camblor, MA ;
Corma, A ;
Valencia, S .
MICROPOROUS AND MESOPOROUS MATERIALS, 1998, 25 (1-3) :59-74
[5]   Acidity of Beta zeolite determined by TPD of ammonia and ethylbenzene disproportionation [J].
Camiloti, AM ;
Jahn, SL ;
Velasco, ND ;
Moura, LF ;
Cardoso, D .
APPLIED CATALYSIS A-GENERAL, 1999, 182 (01) :107-113
[6]   Highly selective Friedel-Crafts acylation of 2-methoxynaphthlene catalyzed by H-BEA zeolite [J].
Casagrande, M ;
Storaro, L ;
Lenarda, M ;
Ganzerla, R .
APPLIED CATALYSIS A-GENERAL, 2000, 201 (02) :263-270
[7]   OPTIMIZATION OF LIQUID-CHROMATOGRAPHIC PARAMETERS FOR THE SEPARATION OF PRIORITY PHENOLS BY USING MIXED-LEVEL ORTHOGONAL ARRAY DESIGN [J].
CHEE, KK ;
LAN, WG ;
WONG, MK ;
LEE, HK .
ANALYTICA CHIMICA ACTA, 1995, 312 (03) :271-280
[8]   DEALUMINATION OF ZEOLITE-Y BY H4EDTA [J].
DATKA, J ;
KOLIDZIEJSKI, W ;
KLINOWSKI, J ;
SULIKOWSKI, B .
CATALYSIS LETTERS, 1993, 19 (2-3) :159-165
[9]   Paraffin alkylation using zeolite catalysts in a slurry reactor: Chemical engineering principles to extend catalyst lifetime [J].
deJong, KP ;
Mesters, CMAM ;
Peferoen, DGR ;
vanBrugge, PTM ;
deGroot, C .
CHEMICAL ENGINEERING SCIENCE, 1996, 51 (10) :2053-2060
[10]   Effect of agitation on the synthesis of zeolite beta and its synthesis mechanism in absence of alkali cations [J].
Ding, Lianhui ;
Zheng, Ying ;
Zhang, Zisheng ;
Ring, Zbigniew ;
Chen, Jinwen .
MICROPOROUS AND MESOPOROUS MATERIALS, 2006, 94 (1-3) :1-8
123