Effects of Colloidal Silica Binder on Catalytic Activity and Adhesion of HZSM-5 Coatings for Structured Reactors

doi:10.1016/j.cjche.2014.06.010

Chin.J.Chem.Eng. ›› 2014, Vol. 22 ›› Issue (8): 875-881.DOI: 10.1016/j.cjche.2014.06.010

• SELCTED PAPERS FROM THE 4TH INTERNATIONAL CONFERENCE ON STRUCTURED CATALYSTS AND REACTIONS • Previous Articles Next Articles

Effects of Colloidal Silica Binder on Catalytic Activity and Adhesion of HZSM-5 Coatings for Structured Reactors

Guozhu Liu¹, Jinhua Guo¹, Fanxu Meng², Xiangwen Zhang¹, Li Wang¹

1. Key Laboratory of Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2. Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA

Received:2013-12-24 Revised:2014-01-06 Online:2014-11-04 Published:2014-08-28
Supported by:
Supported by the National Natural Science Foundation of China (91116001).

Effects of Colloidal Silica Binder on Catalytic Activity and Adhesion of HZSM-5 Coatings for Structured Reactors

Guozhu Liu¹, Jinhua Guo¹, Fanxu Meng², Xiangwen Zhang¹, Li Wang¹

1. Key Laboratory of Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2. Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA

通讯作者: Li Wang
基金资助:
Supported by the National Natural Science Foundation of China (91116001).

Abstract

Abstract: HZSM-5 coating using three colloidal silica binders, acidic colloidal silica (ACS), neutral colloidal silica (NCS) and basic colloidal silica (BCS), was prepared to study the effect of binders on their adhesion and catalytic activity. Scanning electron microscopy characterization indicated that the zeolite coating using BCS shows the smoothest surface with higher homogeneity and adherence strength. The specific surface area, relative crystallization and acid site strength of zeolites are also dependent on the binder used. Catalytic cracking of supercritical n-dodecane over the series of zeolite coating with various binders indicated that HZSM-5 coating with BCS exhibits the highest and the most stable catalytic activity compared with other kinds of binders, and also exhibits a stable catalytic activity ascribed to its proper acid property and microstructure.

Key words: HZSM-5 coating, Colloidal silica binder, Catalytic activity, Structured reactor

摘要： HZSM-5 coating using three colloidal silica binders, acidic colloidal silica (ACS), neutral colloidal silica (NCS) and basic colloidal silica (BCS), was prepared to study the effect of binders on their adhesion and catalytic activity. Scanning electron microscopy characterization indicated that the zeolite coating using BCS shows the smoothest surface with higher homogeneity and adherence strength. The specific surface area, relative crystallization and acid site strength of zeolites are also dependent on the binder used. Catalytic cracking of supercritical n-dodecane over the series of zeolite coating with various binders indicated that HZSM-5 coating with BCS exhibits the highest and the most stable catalytic activity compared with other kinds of binders, and also exhibits a stable catalytic activity ascribed to its proper acid property and microstructure.

关键词: HZSM-5 coating, Colloidal silica binder, Catalytic activity, Structured reactor

Guozhu Liu, Jinhua Guo, Fanxu Meng, Xiangwen Zhang, Li Wang. Effects of Colloidal Silica Binder on Catalytic Activity and Adhesion of HZSM-5 Coatings for Structured Reactors[J]. Chin.J.Chem.Eng., 2014, 22(8): 875-881.

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Effects of Colloidal Silica Binder on Catalytic Activity and Adhesion of HZSM-5 Coatings for Structured Reactors

Effects of Colloidal Silica Binder on Catalytic Activity and Adhesion of HZSM-5 Coatings for Structured Reactors

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