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C.S. Song, An overview of new approaches to deep desulfurization for ultra-clean gasoline, diesel fuel and jet fuel, Catal. Today, 2003; 86(1-4): 211-263.

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Article

Study on the SiO2/Al2O3 Ratio of Starting NaY Zeolites on USY Zeolites Properties and Hydroaromatization Catalyst Performance

1Daqing Petrochemical Research Center of PetroChina, Daqing, Heilongjiang, 163714, China

2PetroChina Fushun Petrochemical Company, Fushun Liaoning 113001, China


Journal of Materials Physics and Chemistry. 2022, Vol. 10 No. 1, 17-22
DOI: 10.12691/jmpc-10-1-3
Copyright © 2022 Science and Education Publishing

Cite this paper:
Fucun Wang, Zhongyang Zhang, Baodong Jin, Baojing Cui, Baojun Jia, Famin Sun, Tiezhen Zhang, Jinling Zhu. Study on the SiO2/Al2O3 Ratio of Starting NaY Zeolites on USY Zeolites Properties and Hydroaromatization Catalyst Performance. Journal of Materials Physics and Chemistry. 2022; 10(1):17-22. doi: 10.12691/jmpc-10-1-3.

Correspondence to: Fucun  Wang, Daqing Petrochemical Research Center of PetroChina, Daqing, Heilongjiang, 163714, China. Email: fucunwang@yeah.net

Abstract

The modifications of NaY zeolites with different SiO2/Al2O3 ratio were carried out, the results revealed that modified USY zeolites showed some mesopores, as the SiO2/Al2O3 ratio of USY increased, the weak acidity strength of USY had little change, medium and strong acidity strength of USY decreased, the weak acidity and medium-strong concentration decreased.The selective ring opening evaluation of tetralin revealed that hydro-upgrading catalyst with different USY zeolites had different tetralin conversion, different yield and selectivity of ROP. The catalyst prepared with USY zeolite modified from NaY with the SiO2/Al2O3 ratio of 5.7 showed best hydro-upgrading performance, which had higher tetralin conversion, higher yield and selectivity of ROP. Acidity and Si/Al ratio of USY zeolites both were important factors affecting catalyst performance.

Keywords