Effect of Cr doping on hydrogen production via methanol steam reforming over Cu-Ce composite catalysts

WANG Dong-zhe; WANG Li-bao; ZHANG Lei; QING Shao-jun; HAN Jiao; ZHANG Cai-shun; GAO Zhi-xian; FENG Xu-hao

Volume 48 Issue 5

May 2020

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Article Navigation > Journal of Fuel Chemistry and Technology > 2020 > 48(5): 619-625

WANG Dong-zhe, WANG Li-bao, ZHANG Lei, QING Shao-jun, HAN Jiao, ZHANG Cai-shun, GAO Zhi-xian, FENG Xu-hao. Effect of Cr doping on hydrogen production via methanol steam reforming over Cu-Ce composite catalysts[J]. Journal of Fuel Chemistry and Technology, 2020, 48(5): 619-625.

Citation:

WANG Dong-zhe, WANG Li-bao, ZHANG Lei, QING Shao-jun, HAN Jiao, ZHANG Cai-shun, GAO Zhi-xian, FENG Xu-hao. Effect of Cr doping on hydrogen production via methanol steam reforming over Cu-Ce composite catalysts[J]. Journal of Fuel Chemistry and Technology, 2020, 48(5): 619-625.

Citation:

WANG Dong-zhe, WANG Li-bao, ZHANG Lei, QING Shao-jun, HAN Jiao, ZHANG Cai-shun, GAO Zhi-xian, FENG Xu-hao. Effect of Cr doping on hydrogen production via methanol steam reforming over Cu-Ce composite catalysts[J]. Journal of Fuel Chemistry and Technology, 2020, 48(5): 619-625.

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Effect of Cr doping on hydrogen production via methanol steam reforming over Cu-Ce composite catalysts

1.
College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, China
2.
Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
3.
No.3 Refinery of Fushun Petrochemical Company of CNPC, Fushun 113001, China

Funds:

the National Natural Science Foundation of China 21376237

Scientific Research Fund Project of Liaoning Provincial Department of Education L2019038

General Program of Liaoning Natural Science Foundation 2019-MS-221

Guidance Project of Liaoning Natural Science 2019-ZD-0371

Received Date: 2020-03-30
Rev Recd Date: 2020-05-05

Available Online: 2021-01-23

Publish Date: 2020-05-10

Abstract

Abstract

Cr/Cu-Ce catalyts with different Cr contents were prepared by impregnation method, and their structures, properties and catalytic performance were investigated using N₂O titration, H₂-TPR and XPS techniques. It is found that the Cr doping changs the specific surface area of copper, the reduction temperature of CuO and oxygen vacancies of the Cu-Ce catalysts. In addition, the catalyst with 3% Cr addition has larger Cu specific surface area, lower CuO reduction temperature and more oxygen vacancies, thus exhibits excellent catalytic performance. The catalytic efficiency reaches 100% and CO volume fraction in outlet gas is 0.15% when the reaction temperature is 533 K, n(water):n(methanol) is 1.2:1 and the feeding rate of methanol and water is 0.072 mL/min. Compared with the un-doped Cr catalyst, the catalytic efficiency increases by 10% and the volume fraction of CO in the outlet gas decreases by 0.34%.
- Cr content,
- oxygen vacancy,
- Cu-Ce catalyst,
- reduction temperature

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References(24)

References

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