Aromatization of Methanol over La/Zn/HZSM-5 Catalysts

倪友明; 孙爱明; 吴小岭; 胡江林; 李涛; 李光兴

doi:10.1016/S1004-9541(11)60004-9

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Aromatization of Methanol over La/Zn/HZSM-5 Catalysts

Updated：2026-01-06

- Aromatization of Methanol over La/Zn/HZSM-5 Catalysts
- Chinese Journal of Chemical Engineering Vol. 19, Issue 3, Pages: 439-445(2011)
- Affiliations：
  
  1. School of Chemistry&Chemical Engineering, Huazhong University of Science&Technology,Wuhan,China,430074
  2. Hubei Key Laboratory of Materials Chemistry&Service Failure, Huazhong University of Science&Technology,Wuhan,China,430074
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(11)60004-9
  CLC：
- Published：2011
- Accepted：
Scan QR Code
NI Youming, SUN Aiming, WU Xiaoling, HU Jianglin, LI Tao, LI Guangxing. Aromatization of Methanol over La/Zn/HZSM-5 Catalysts[J]. , 2011, 19(3): 439-445.
DOI：

NI Youming, SUN Aiming, WU Xiaoling, HU Jianglin, LI Tao, LI Guangxing. Aromatization of Methanol over La/Zn/HZSM-5 Catalysts[J]. , 2011, 19(3): 439-445. DOI： 10.1016/S1004-9541(11)60004-9.

摘要

Abstract

Aromatization of methanol over co-impregnated La/Zn/HZSM-5 zeolite catalyst was studied.The selectivity of aromatics and BTX(benzene

toluene

and xylene)reached 64.0% and 56.6%

respectively

using La/Zn/HZSM-5 at 437℃

0.1 MPa and methanol WHSV(weight hourly space velocity)=0.8 h

-1

.Catalytic results showed that the La species was a very good promoter

increased selectivity of aromatics

and prolonged the catalyst lifetime on stream.The effects of the SiO

/Al

ratio in zeolite

Zn and La loading

WHSV

reaction temperature

water content in the feed and H

pretreatment of catalysts on the catalytic performance were studied in detail. Characterizations of the catalysts by thermogravimetric analysis(TGA)

-TPD(temperature programmed desorption)

SEM(scanning electron micrograph)

adsorption-desorption

XRD(X-ray diffraction) and XRF (X-ray fluorescence)

were carried out to understand the structure and discuss the aromatization performance of La/Zn/HZSM-5 zeolite catalyst.

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