Effect of support properties on the performance of supported Pd catalysts in hydrodesulfurization

YANG Xiao-dong; GUAN Xu; GAO Shan-bin; LU Xue-feng; JIANG Wei; SUN Fa-min

Volume 45 Issue 8

Aug. 2017

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Article Navigation > Journal of Fuel Chemistry and Technology > 2017 > 45(8): 980-985

YANG Xiao-dong, GUAN Xu, GAO Shan-bin, LU Xue-feng, JIANG Wei, SUN Fa-min. Effect of support properties on the performance of supported Pd catalysts in hydrodesulfurization[J]. Journal of Fuel Chemistry and Technology, 2017, 45(8): 980-985.

Citation:

YANG Xiao-dong, GUAN Xu, GAO Shan-bin, LU Xue-feng, JIANG Wei, SUN Fa-min. Effect of support properties on the performance of supported Pd catalysts in hydrodesulfurization[J]. Journal of Fuel Chemistry and Technology, 2017, 45(8): 980-985.

Citation:

YANG Xiao-dong, GUAN Xu, GAO Shan-bin, LU Xue-feng, JIANG Wei, SUN Fa-min. Effect of support properties on the performance of supported Pd catalysts in hydrodesulfurization[J]. Journal of Fuel Chemistry and Technology, 2017, 45(8): 980-985.

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Effect of support properties on the performance of supported Pd catalysts in hydrodesulfurization

Petrochemical Research Institute, CNPC, Daqing 163714, China

Funds:

the China National Petroleum Corporation Fund 2013E-1502

the China National Petroleum Corporation Fund 2014B-2508

Received Date: 2017-04-06
Rev Recd Date: 2017-05-27

Available Online: 2021-01-23

Publish Date: 2017-08-10

Abstract

Abstract

SiO₂, siliceous MCM-41 (Si-MCM-41), physical mixture of Si-MCM-41 and ZSM-5 (Z-MCM-41-M), and Z-MCM-41 composite obtained by coating MCM-41 on ZSM-5 zeolite particles were prepared and characterized by XRD, HRTEM, N₂ adsorption-desorption and NH₃-TPD. The performances of the supported Pd catalysts in hydrodesulfurization (HDS) were evaluated in a fixed-bed reactor with dibenzothiophene (DBT) as the model sulfur-containing molecule; the effect of support properties on the performance of supported Pd catalysts in HDS was then investigated. The results indicated that the performance in HDS of supported Pd catalysts are significantly influenced by the support properties. Although the specific surface has a minor influence on the HDS activity of the supported Pd catalysts, the hydrogenation (HYD) selectivity is probably related to the pore structure of support; the mesoporous structure is beneficial to the improvement of HYD selectivity. The acid supports can give the Pd catalysts higher HDS activity, owing to the hydrogen spillover effect. The Z-MCM-41 composite is an excellent support for noble metal Pd catalyst in HDS, which can be ascribed to the synergy of the mesoporous structure of MCM-41 and acidic properties of ZSM-5.
- MCM-41,
- ZSM-5,
- composite zeolite,
- Pd,
- hydrodesulfurization

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References(22)

References

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