气候变化领域集成服务门户(CCPortal): Sustainable production of light olefins from greenhouse gas CO2 over SAPO-34 supported modified cerium oxide

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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
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).