Effect of Ni content on catalytic oxidation of CO over NiO/CeO<sub>2</sub> catalyst

JIN Shi-shan; ZHANG Da-shan; FENG Xu-hao; ZHANG Cai-shun; QING Shao-jun; ZHANG Lei; GAO Zhi-xian

doi:10.19906/j.cnki.JFCT.2022019

Volume 50 Issue 8

Aug. 2022

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Article Navigation > Journal of Fuel Chemistry and Technology > 2022 > 50(8): 1034-1040

JIN Shi-shan, ZHANG Da-shan, FENG Xu-hao, ZHANG Cai-shun, QING Shao-jun, ZHANG Lei, GAO Zhi-xian. Effect of Ni content on catalytic oxidation of CO over NiO/CeO2 catalyst[J]. Journal of Fuel Chemistry and Technology, 2022, 50(8): 1034-1040. doi: 10.19906/j.cnki.JFCT.2022019

Citation:

JIN Shi-shan, ZHANG Da-shan, FENG Xu-hao, ZHANG Cai-shun, QING Shao-jun, ZHANG Lei, GAO Zhi-xian. Effect of Ni content on catalytic oxidation of CO over NiO/CeO₂ catalyst[J]. Journal of Fuel Chemistry and Technology, 2022, 50(8): 1034-1040. doi: 10.19906/j.cnki.JFCT.2022019

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Effect of Ni content on catalytic oxidation of CO over NiO/CeO₂ catalyst

doi: 10.19906/j.cnki.JFCT.2022019

1.
School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China
2.
No.3 Refinery of Fushun Petrochemical Company, CNPC, Fushun 113001, China
3.
Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China

Funds: The project was supported by the National Natural Science Foundation of China (21673270) and the Scientific Research Funds project of Education Department of Liaoning Province (L2019012)

Received Date: 2021-12-25
Accepted Date: 2022-03-15
Rev Recd Date: 2022-02-08

Available Online: 2022-03-25

Publish Date: 2022-08-26

Abstract

Abstract

The NiO/CeO₂ catalytic materials were prepared with ball milling method using CeO₂ as carrier and Ni as active component with good CO oxidation performance at low temperature. The catalysts were characterized by XRD, BET, H₂-TPR, XRF and XPS. The effects of nickel content on the structure and low temperature oxidation performance of CO were investigated. The results show that the Ni-Ce ratio mainly affects the number of lattice oxygen vacancies and the interaction between the active ingredient and the carrier. Among them, When the Ni/Ce mole ratios is 1∶9, there are more oxygen vacancies on the surface of the catalyst, so it shows excellent catalytic performance. When the reaction temperature is 200 ℃, oxygen excess coefficient is 5 and the total space velocity is 60000 mL/(g_cat·h), the CO conversion reaches 99.2%. In addition, compared with the traditional liquid phase catalyst preparation technology, ball milling has the advantages of low pollution, low cost and easy operation, which is beneficial to save energy.
- method of ball mill,
- CO oxidation,
- CeO₂,
- low temperature

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References(27)

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