Insight into the correlation between the effective adsorption sites and adsorption desulfurization performance of CuNaY zeolite

DING Run-dong; ZU Yun; ZHOU Chuan-hang; WANG Huan; MO Zhou-sheng; QIN Yu-cai; SUN Zhao-lin; SONG Li-juan

Volume 46 Issue 4

Apr. 2018

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Article Navigation > Journal of Fuel Chemistry and Technology > 2018 > 46(4): 451-458

DING Run-dong, ZU Yun, ZHOU Chuan-hang, WANG Huan, MO Zhou-sheng, QIN Yu-cai, SUN Zhao-lin, SONG Li-juan. Insight into the correlation between the effective adsorption sites and adsorption desulfurization performance of CuNaY zeolite[J]. Journal of Fuel Chemistry and Technology, 2018, 46(4): 451-458.

Citation:

DING Run-dong, ZU Yun, ZHOU Chuan-hang, WANG Huan, MO Zhou-sheng, QIN Yu-cai, SUN Zhao-lin, SONG Li-juan. Insight into the correlation between the effective adsorption sites and adsorption desulfurization performance of CuNaY zeolite[J]. Journal of Fuel Chemistry and Technology, 2018, 46(4): 451-458.

Citation:

DING Run-dong, ZU Yun, ZHOU Chuan-hang, WANG Huan, MO Zhou-sheng, QIN Yu-cai, SUN Zhao-lin, SONG Li-juan. Insight into the correlation between the effective adsorption sites and adsorption desulfurization performance of CuNaY zeolite[J]. Journal of Fuel Chemistry and Technology, 2018, 46(4): 451-458.

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Insight into the correlation between the effective adsorption sites and adsorption desulfurization performance of CuNaY zeolite

1.
Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning ShiHua University, Fushun 113001, China
2.
College of Chemistry and Chemical Engineering, China University of Petroleum(East China), Qingdao 266555, China

Funds:

the National Natural Science Foundation of China U1662135

the National Natural Science Foundation of China 21376114

Liaoning Province, PhD Research Initiated Fund Project 201601318

More Information

Corresponding author: QIN Yu-cai, E-mail:qycgryx@163.com; SONG Li-juan, Tel:13941350056, E-mail: lsong56@263.net
Received Date: 2017-12-08
Rev Recd Date: 2018-02-06

Available Online: 2021-01-23

Publish Date: 2018-04-10

Abstract

Abstract

A series of CuNaY zeolites with different Cu loadings were prepared from NaY by liquid-phase ion exchange (LPIE) method. The microstructure and textural properties of CuNaY zeolites were characterized by XRD and N₂ sorption and their adsorption desulfurization performance were evaluated with a model oil containing thiophene by the dynamic adsorption method. Combined with the Py-FTIR and NH₃-TPD methods, the amounts of surface acid sites and effective Cu⁺ species were determined quantitatively and a correlation between the effective adsorption sites and adsorption desulfurization performance of CuNaY zeolite towards thiophene was then established. The results revealed that the surface acidity and the active copper species in Y zeolite can be regulated effectively by controlling the copper loading; an adsorbent provided with abundant effective adsorption sites and excellent adsorption desulfurization performance can be obtained by loading appropriate amount of copper. On the contrary, an excessively high copper loading may promote the formation of polymeric copper species in the cavity of Y zeolite, which leads to a decrease in the number of effective adsorption sites as well as a decrease in the adsorption capacity of CuNaY zeolite towards thiophene.
- CuNaY zeolite,
- adsorption site,
- copper loading,
- adsorption desulfurization

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References(23)

References

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