Effects of hydrothermal reaction temperatures on the performance of CuO/CeO<sub>2</sub> catalyst for hydrogen production from steam reforming methanol

FENG Xu; LIN Yu; ZHANG Cai-shun; HAN Jiao; QING Shao-jun; ZHANG Lei; GAO Zhi-xian; GUAN Guo-qing

doi:10.19906/j.cnki.JFCT.2021096

Volume 50 Issue 7

Aug. 2022

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Article Navigation > Journal of Fuel Chemistry and Technology > 2022 > 50(7): 832-840

FENG Xu, LIN Yu, ZHANG Cai-shun, HAN Jiao, QING Shao-jun, ZHANG Lei, GAO Zhi-xian, GUAN Guo-qing. Effects of hydrothermal reaction temperatures on the performance of CuO/CeO2 catalyst for hydrogen production from steam reforming methanol[J]. Journal of Fuel Chemistry and Technology, 2022, 50(7): 832-840. doi: 10.19906/j.cnki.JFCT.2021096

Citation:

FENG Xu, LIN Yu, ZHANG Cai-shun, HAN Jiao, QING Shao-jun, ZHANG Lei, GAO Zhi-xian, GUAN Guo-qing. Effects of hydrothermal reaction temperatures on the performance of CuO/CeO₂ catalyst for hydrogen production from steam reforming methanol[J]. Journal of Fuel Chemistry and Technology, 2022, 50(7): 832-840. doi: 10.19906/j.cnki.JFCT.2021096

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Effects of hydrothermal reaction temperatures on the performance of CuO/CeO₂ catalyst for hydrogen production from steam reforming methanol

doi: 10.19906/j.cnki.JFCT.2021096

1.
Liaoning Petrochemical University, School of Petrochemical Engineering, Fushun 113001, China
2.
Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
3.
Energy Conversion Engineering Laboratory, Institute of Regional Innovation, Hirosaki University, Matsubara 030-0813, Japan

Funds: The project was supported by the National Natural Science Foundation of China (21673270), Scientific Research Funds Project of Liaoning Education Department (L2019038) and the Project of the National Science Fund in Liaoning Province (2019-MS-221)

Received Date: 2021-09-29
Accepted Date: 2021-12-13
Rev Recd Date: 2021-12-13

Available Online: 2022-01-14

Publish Date: 2022-08-01

Abstract

Abstract

Using cerium nitrate as the source material and urea as the precipitant, nanometer CeO₂ carrier was prepared by hydrothermal method, and the microstructure of CeO₂ carrier was controlled by changing the hydrothermal reaction temperature. Then the CuO/CeO₂ catalytic material was prepared by loading CuO on the CeO₂ carrier and evaluated in methanol steam reforming for hydrogen production. Based on the characterization data of low temperature nitrogen adsorption, XRD, H₂-TPR and XPS, the effects of hydrothermal reaction temperature on the microstructure of CeO₂, the structure of CuO/CeO₂ catalytic material and the performance of methanol steam reforming were investigated. The results show that the nanometer CeO₂ support prepared at 180 ℃ has a cubic fluorite structure. After loading CuO onto the CeO₂, the obtained CuO/CeO₂ catalyst exhibits better catalytic activity due to its stronger Cu-Ce interaction, lower reduction temperature of Cu species in the surface, and more oxygen vacancies on the surface of the catalyst. When the reaction temperature is 280 ℃, the molar ratio of water to alcohol (W/M) is 1.2, and the space velocity of methanol vapor gas (GHSV) is 800 h^{− 1}, the methanol conversion rate can reach 91.0%, the mole fraction of CO in reforming gas is 1.29%.
- hydrothermal temperatures,
- `ceria,
- urea,
- catalyst

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References(32)

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