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DOI | 10.1016/j.micromeso.2020.110029 |
Sustainable production of light olefins from greenhouse gas CO2 over SAPO-34 supported modified cerium oxide | |
Ghasemi M.; Mohammadi M.; Sedighi M. | |
发表日期 | 2020 |
ISSN | 13871811 |
卷号 | 297 |
英文摘要 | The direct supply of light olefins from CO2 hydrogenation has led to a tremendous interest in its important roles in reducing CO2 emissions. We study here a significantly effective, reliable and multifunctional catalyst, NiCu/CeO2-SAPO-34, capable of directly converting CO2 to light olefins with selectivity up to 76.6% (C2H4 = 22.7%, C3H6 = 35.5%, and C4H8 = 18.4%), while only 2.1% CH4 with CO2 conversion of 15.3% at H2/CO2 of 3, 12 L.gcat−1 h−1, 375 °C and 20 bar. Under optimum reaction conditions, the CO selectivity is lower than 65%. Physiochemical characterization of the catalyst was performed using BET, NH3-TPD, H2-TPR, XRD, TEM, and SEM techniques. Compared to the XRD patterns of SAPO-34 and NiCu/CeO2, the composite showed all characteristic XRD peaks of both samples. In addition, our designed hybrid catalyst also has beneficial catalytic stability, which can operate for 90 h without loss of apparent activity. © 2020 Elsevier Inc. |
英文关键词 | CO2 hydrogenation; Light olefins; NiCu/CeO2-SAPO-34 catalyst; Ratio of H2/CO2; Space velocity; Temperature |
scopus关键词 | Ammonia; Carbon dioxide; Catalyst selectivity; Cerium oxide; Copper compounds; Greenhouse gases; Hydrogenation; Light olefins; Temperature; X ray diffraction; Catalytic stability; CO2 hydrogenation; Multifunctional catalysts; Optimum reaction conditions; Physiochemical characterization; Ratio of H2/CO2; Space velocities; Sustainable production; Nickel compounds |
来源期刊 | Microporous and Mesoporous Materials
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/176923 |
作者单位 | Chemical Engineering Section, Sohar University, Sohar, 311, Oman; Department of Energy Engineering, Faculty of Science, Qom University of Technology, Qom, Iran; Division of Energy Systems, Department of Chemical Engineering, University of Qom, Qom, Iran; Center of Environmental Research, University of Qom, Qom, Iran |
推荐引用方式 GB/T 7714 | Ghasemi M.,Mohammadi M.,Sedighi M.. Sustainable production of light olefins from greenhouse gas CO2 over SAPO-34 supported modified cerium oxide[J],2020,297. |
APA | Ghasemi M.,Mohammadi M.,&Sedighi M..(2020).Sustainable production of light olefins from greenhouse gas CO2 over SAPO-34 supported modified cerium oxide.Microporous and Mesoporous Materials,297. |
MLA | Ghasemi M.,et al."Sustainable production of light olefins from greenhouse gas CO2 over SAPO-34 supported modified cerium oxide".Microporous and Mesoporous Materials 297(2020). |
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