Disproportionation of Toluene by Modified ZSM-5 Zeolite Catalysts with High Shape-selectivity Prepared Using Chemical Liquid Deposition with Tetraethyl Orthosilicate

腾晖; 王军; 任晓乾; 陈德民

doi:10.1016/S1004-9541(11)60168-7

Your Location：

Home >

Browse articles >

Disproportionation of Toluene by Modified ZSM-5 Zeolite Catalysts with High Shape-selectivity Prepared Using Chemical Liquid Deposition with Tetraethyl Orthosilicate

Updated：2026-01-06

- Disproportionation of Toluene by Modified ZSM-5 Zeolite Catalysts with High Shape-selectivity Prepared Using Chemical Liquid Deposition with Tetraethyl Orthosilicate
- Chinese Journal of Chemical Engineering Vol. 19, Issue 2, Pages: 292-298(2011)
- Affiliations：
  
  State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineer-ing, Nanjing University of Technology,Nanjing,China,210009
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(11)60168-7
  CLC：
- Published：2011
- Accepted：
Scan QR Code
TENG Hui, WANG Jun, REN Xiaoqian, CHEN Demin. Disproportionation of Toluene by Modified ZSM-5 Zeolite Catalysts with High Shape-selectivity Prepared Using Chemical Liquid Deposition with Tetraethyl Orthosilicate[J]. , 2011, 19(2): 292-298.
DOI：

TENG Hui, WANG Jun, REN Xiaoqian, CHEN Demin. Disproportionation of Toluene by Modified ZSM-5 Zeolite Catalysts with High Shape-selectivity Prepared Using Chemical Liquid Deposition with Tetraethyl Orthosilicate[J]. , 2011, 19(2): 292-298. DOI： 10.1016/S1004-9541(11)60168-7.

摘要

Abstract

Shape-selective catalysts for the disproportionation of toluene were prepared by the modification of the cylinder-shaped ZSM-5 zeolite extrudates with chemical liquid deposition with TEOS (tetraethyl orthosilicate).Various parameters for preparing catalysts were changed to investigate the suitable conditions.The resulting cata-lysts were tested in a pressured fixed bed reactor and characterized by SEM (scanning electron microscopy).The conversion of toluene and

para-xylene

selectivity were influenced remarkably by the

(SiO

(Al

) ratio of ZSM-5 zeolite

the type and amount of deposition agent

acid and solvent used

and the time and cycle of deposition treatment.TEOS was proved to be a more efficient agent than the conventional polysiloxanes when the deposition amount was low.The catalyst prepared at the suitable conditions exhibited a high

para-xylene

selectivity of 91.1% with considerable high conversion of 25.6%.SEM analyses confirmed the formation of a layer of amorphous silica on the external surface of ZSM-5 zeolie crystals

which was responsible for the highly enhanced shape-selectivity.

关键词

Keywords

references

Views

210

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Anti-carbon deposition performance of twinned HZSM-5 encapsulated Ru in the toluene alkylation with methanol

Synthesis of ZSM-5 with the silica source from industrial hexafluorosilicic acid as transalkylation catalyst

Ethylbenzene disproportionation and p-xylene selectivity enhancement in xylene isomerization using high crystallinity desilicated H-ZSM-5

CO2 leakage behavior from CO2 hydrate-liquid CO2-seawater coexistence system in unsealed sediments

Controllable synthesis of Ni3S2/V3S4@NF-xF(x=0, 4, 8) catalysts for efficient hydrogen production in seawater and urea electrolyte

Related Author

Guixian Li

Tao Tian

Hanxu Li

Jinlian Li

Tingna Shao

Qi Zhang

Peng Dong

Fang Jin

Related Institution

School of Petrochemical Engineering, Lanzhou University of Technology

Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province

Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Novel Reactor & Green Chemical Technology Key Laboratory, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology

Hubei SanNing Chemical Industry Joint Stock Co., Ltd

2 Chemical Engineering Department, Amirkabir University of Technology, Tehran

⁰