Effect of ZSM-5 acid modification on aromatization performance of methanol

LI Jun-hua; WANG Li-na; ZHANG Dan; QIAN Jian-hua; LIU Lin; XING Jin-juan

Volume 47 Issue 8

Aug. 2019

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Article Navigation > Journal of Fuel Chemistry and Technology > 2019 > 47(8): 957-963

LI Jun-hua, WANG Li-na, ZHANG Dan, QIAN Jian-hua, LIU Lin, XING Jin-juan. Effect of ZSM-5 acid modification on aromatization performance of methanol[J]. Journal of Fuel Chemistry and Technology, 2019, 47(8): 957-963.

Citation:

LI Jun-hua, WANG Li-na, ZHANG Dan, QIAN Jian-hua, LIU Lin, XING Jin-juan. Effect of ZSM-5 acid modification on aromatization performance of methanol[J]. Journal of Fuel Chemistry and Technology, 2019, 47(8): 957-963.

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Effect of ZSM-5 acid modification on aromatization performance of methanol

1.
School of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121013, China
2.
School of Chemistry and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, China

Funds:

National Natural Science Foundation of China 21606117

Liaoning Natural Science Foundation 2015020623

Liaoning Natural Science Foundation 201602380

Liaoning Innovation Team Project 2018-479-14

Liaoning Innovation Team Project LT2015001

Bohai University Doctoral Start-up Fund 0518bs016

Bohai University Doctoral Start-up Fund 0518bs019

More Information

Corresponding author: ZHANG Dan, E-mail: bestzhangdan@163.com
Received Date: 2019-03-20
Rev Recd Date: 2019-06-18

Available Online: 2021-01-23

Publish Date: 2019-08-10

Abstract

Abstract

ZSM-5 zeolites were modified with tartaric acid, oxalic acid and nitric acid. The physicochemical properties of ZSM-5 zeolites, such as crystal structure, acid content, surface area and pore volume, were characterized by XRD, SEM, NH₃-TPD, XRF, ²⁷Al MAS NMR, pyridine adsorption infrared spectroscopy and N₂ adsorption-desorption isotherms. The catalytic activity of ZSM-5 zeolites were investigated under the condition of reaction temperature 422 ℃ and methanol mass space velocity of 4.74 h^-1. The specific surface area, acidity, pore volume and catalytic performance of the catalyst are affected by acid modification. The acid-modified zeolites show good catalytic activity in methanol aromatization (MTA) reaction, and oxalic acid modified catalyst shows higher catalytic activity and selectivity. The yield of aromatic hydrocarbons and BTX reaches 57.40% and 39.40% for reaction time at 8 h, respectively.
- ZSM-5 zeolite,
- acid-modified,
- methanol aromatization

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References(26)

References

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