The performances and structure evolution of Pt-based catalysts for selective hydrogen combustion under propene-rich conditions

SUN Huai-lu; LI Kai-xin; YU Wen-long; DING Jun-wei; SHAN Yu-ling

doi:10.1016/S1872-5813(23)60336-6

Volume 51 Issue 5

May 2023

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Article Navigation > Journal of Fuel Chemistry and Technology > 2023 > 51(5): 616-624

SUN Huai-lu, LI Kai-xin, YU Wen-long, DING Jun-wei, SHAN Yu-ling. The performances and structure evolution of Pt-based catalysts for selective hydrogen combustion under propene-rich conditions[J]. Journal of Fuel Chemistry and Technology, 2023, 51(5): 616-624. doi: 10.1016/S1872-5813(23)60336-6

Citation:

SUN Huai-lu, LI Kai-xin, YU Wen-long, DING Jun-wei, SHAN Yu-ling. The performances and structure evolution of Pt-based catalysts for selective hydrogen combustion under propene-rich conditions[J]. Journal of Fuel Chemistry and Technology, 2023, 51(5): 616-624. doi: 10.1016/S1872-5813(23)60336-6

Citation:

SUN Huai-lu, LI Kai-xin, YU Wen-long, DING Jun-wei, SHAN Yu-ling. The performances and structure evolution of Pt-based catalysts for selective hydrogen combustion under propene-rich conditions[J]. Journal of Fuel Chemistry and Technology, 2023, 51(5): 616-624. doi: 10.1016/S1872-5813(23)60336-6

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The performances and structure evolution of Pt-based catalysts for selective hydrogen combustion under propene-rich conditions

doi: 10.1016/S1872-5813(23)60336-6

1.
State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China

Funds: The project was supported by the National Natural Science Foundation of China (22108144) and Natural Science Foundation of Shandong Province (ZR2021MB014)

More Information

Corresponding author: E-mail: shanyl@mail.ecust.edu.cn
Received Date: 2022-09-30
Accepted Date: 2022-11-25
Rev Recd Date: 2022-11-15

Available Online: 2023-01-10

Publish Date: 2023-05-15

Abstract

Abstract

In the present study, the kinetic behaviour and active sites evolution processes of Pt-based catalysts were investigated. It was found that highly selective hydrogen combustion could be achieved over Sn modified Pt-based catalysts in presence of both propane and propene (over 98%). The stability tests, kinetic study and catalyst characterization revealed that the existence of oxygenated species is the reason for accelerated coking reactions. The formation of graphitized cokes serving as additional unselective active sites and the oxidation of tin in PtSn alloy phases are the primary reasons causing the catalytic selectivity loss during long-run tests under propene-rich condition.
- propane dehydrogenation,
- selective hydrogen combustion,
- Pt-based catalyst,
- active phases evolution

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References(30)

References

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