Application of Ce1-xNixOy oxygen carriers in chemical-looping reforming of methane coupled with CO2 reduction

被引：0

作者：

Zhao L. ^{[1
]}

Zheng Y. ^{[1
,2
]}

Li K. ^{[2
,3
]}

Wang Y. ^{[1
]}

Jiang L. ^{[1
]}

Fan H. ^{[1
]}

Wang Y. ^{[1
]}

Zhu X. ^{[2
,3
]}

Wei Y. ^{[2
,3
]}

机构：

[1] Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming

[2] State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming

[3] Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming

来源：

Huagong Xuebao/CIESC Journal | 2021年 / 72卷 / 08期

关键词：

Ce[!sub]1-[!/sub][!sub]x[!/sub]Ni[!sub]x[!/sub]O[!sub]y[!/sub] oxygen carriers; Chemical-looping; CO[!sub]2[!/sub] reduction; Reforming of methane; Syngas;

D O I：

10.11949/0438-1157.20201787

中图分类号：

学科分类号：

摘要：

Chemical-looping reforming of methane coupled with CO2 reduction technology can not only produce syngas, but also reduce CO2 to generate CO. In this paper, a series of Ce1-xNixOy(x = 0, 0.2, 0.4, 0.6, 0.8, 1) oxygen carriers with different Ce/Ni molar ratios were prepared by co-precipitation method. The physical and chemical properties of oxygen carriers were characterized by means of XRD, BET, XPS and CH4-TPR. The performance of Ce1-xNixOy oxygen carriers in chemical-looping reforming of methane coupled with CO2 reduction reaction was systematically investigated. Compared with single metal oxide NiO and CeO2, Ce1-xNixOy composite oxygen carriers have higher activity and thermal stability in this reaction. During the partial oxidation of methane, Ce0.2Ni0.8Oy and Ce0.4Ni0.6Oy oxygen carriers have higher CH4 conversion. After 20 redox cycle experiments, the CO2 conversion rate of the Ce0.2Ni0.8Oy oxygen carrier remained almost unchanged, indicating that the Ce0.2Ni0.8Oy oxygen carrier has high thermal stability. © 2021, Chemical Industry Press Co., Ltd. All right reserved.

引用

页码：4371 / 4380

页数：9

共 7 条

[1] Liu L P, Ryu B, Sun Z L, Et al., Monitoring and research on environmental impacts related to marine natural gas hydrates: review and future perspective, Journal of Natural Gas Science and Engineering, 65, pp. 82-107, (2019)
[2] Wei C, Wang M H., Spatial distribution of greenhouse gases (CO2 and CH4) on expressways in the megacity Shanghai, China, Environmental Science and Pollution Research, 27, 25, pp. 31143-31152, (2020)
[3] Niu J T, Ran J Y, Chen D., Understanding the mechanism of CO2 reforming of methane to syngas on Ni@Pt surface compared with Ni (1 1 1) and Pt (1 1 1), Applied Surface Science, 513, pp. 145840-145873, (2020)
[4] Liu C C, Chen Y, Zhao Y X, Et al., Nano-ZSM-5-supported cobalt for the production of liquid fuel in Fischer-Tropsch synthesis: effect of preparation method and reaction temperature, Fuel, 263, (2020)
[5] Angeli S D, Monteleone G, Giaconia A, Et al., State-of-the-art catalysts for CH4 steam reforming at low temperature, International Journal of Hydrogen Energy, 39, 5, pp. 1979-1997, (2014)
[6] Abdullah B, Abd Ghani N A, Vo D V N., Recent advances in dry reforming of methane over Ni-based catalysts, Journal of Cleaner Production, 162, pp. 170-185, (2017)
[7] Christian Enger B, Lodeng R, Holmen A., A review of catalytic partial oxidation of methane to synthesis gas with emphasis on reaction mechanisms over transition metal catalysts, Applied Catalysis A: General, 346, pp. 1-27, (2008)

← 1 →