Enhanced triisopropylbenzene cracking and suppressed coking on tailored composite of Y-zeolite/amorphous silica-alumina catalyst

被引：31
作者：
Aghakhani, M. S. [1 ]
Khodadadi, A. A. [1 ,2 ]
Najafi, Sh. [1 ]
Mortazavi, Y. [1 ,2 ]
机构：
[1] Univ Tehran, Sch Chem Engn, Coll Engn, Tehran 113654563, Iran
[2] Univ Tehran, Oil & Gas Proc Ctr Excellence, Tehran 113654563, Iran
来源：
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2014年 / 20卷 / 05期
关键词：
Catalytic composite; Y-Zeolite; Amorphous silica-alumina; Catalytic cracking; MESOPOROUS MATERIALS; CAPSULE CATALYST; MOLECULAR-SIEVE; FCC CATALYSTS; ZEOLITE; STABILITY; DIFFUSION; PROPERTY; BETA; SIZE;
D O I：
10.1016/j.jiec.2013.11.040
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Catalytic composites of Y-zeolite-amorphous silica-alumina (ASA) were prepared by four different methods to enhance pre-cracking and cracking of triisopropylbenzene (TIPB). TIPS cracking on composite catalysts were compared with a conventionally prepared catalyst. The samples were characterized by FESEM, XRD, N-2-adsorption and NH3-TPD. The catalysts performance was evaluated by triisopropylbenzene cracking at 350 degrees C in a fixed bed reactor. The coke content of the catalysts was measured by TPO. Compared to the conventional catalyst, significantly deeper cracking to benzene of about 117% higher, up to 62% lower amount of coke, and lower deactivation rate are observed for the composite catalysts. (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：3037 / 3045
页数：9
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