globalchange  > 气候减缓与适应
DOI: 10.1016/j.jcou.2018.07.006
Scopus记录号: 2-s2.0-85050005612
论文题名:
Highly selective conversion of CO2 to lower hydrocarbons (C2-C4) over bifunctional catalysts composed of In2O3-ZrO2 and zeolite
作者: Wang J.; Zhang A.; Jiang X.; Song C.; Guo X.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 27
起始页码: 81
结束页码: 88
语种: 英语
英文关键词: Bifunctional catalyst ; CO2 hydrogenation ; Lower hydrocarbons ; Methanol synthesis ; Zeolites
Scopus关键词: Catalysts ; Hydrocarbons ; Hydrogenation ; Indium compounds ; Methanol ; Synthesis (chemical) ; Synthesis gas manufacture ; Zeolites ; Zirconia ; Bi-functional catalysts ; C-C coupling ; CO2 hydrogenation ; Direct synthesis ; Methanol synthesis ; Methanol-to-hydrocarbons ; Tandem reaction ; Two-component ; Carbon dioxide
英文摘要: Although many researchers have reported CO2 hydrogenation to various C1 chemicals, it is still challenging to directly and selectively convert CO2 to C2-C4 hydrocarbons in terms of overcoming the extreme inertness of CO2 and a high C-C coupling barrier. In the present work, we report an efficient integration of methanol-synthesis and the methanol-to-hydrocarbons with the bifunctional catalyst component of In2O3-ZrO2 and SAPO-5. These tandem reactions exhibit an excellent relative selectivity of C2-C4 (83%) with a suppressed CH4 relative selectivity less than 3% at T = 300 °C. A detailed analysis indicates that the partially reduced indium oxide surface (In2O3-ZrO2) can better activate CO2 and promote the synthesis of methanol than In2O3 alone, and C-C coupling is subsequently manipulated within the confined acidic pores of SAPO-5 according to XRD, H2-TPR, CO2-TPD, SEM and TEM. Furthermore, the proximity of two components and the content of Si also play an important role in such outstanding selectivity to C2-C4. Our study paves a new path for the direct synthesis of lower hydrocarbons. © 2018 Elsevier Ltd. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111821
Appears in Collections:气候减缓与适应

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作者单位: State Key Laboratory of Fine Chemicals, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China; EMS Energy Institute, Department of Energy and Mineral Engineering and Chemical Engineering, PSU-DUT Joint Center for Energy Research, Pennsylvania State University, University Park, PA 16802, United States; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States

Recommended Citation:
Wang J.,Zhang A.,Jiang X.,et al. Highly selective conversion of CO2 to lower hydrocarbons (C2-C4) over bifunctional catalysts composed of In2O3-ZrO2 and zeolite[J]. Journal of CO2 Utilization,2018-01-01,27
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