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题名: Impacts of SiC Carrier and Nickel Precursor of NiLa/support Catalysts for CO2 Selective Hydrogenation to Synthetic Natural Gas (SNG)
作者: Li, Le1, 2;  Zheng, Jian3;  Liu, Yuefeng4;  Wang, Wei1;  Huang, Qingsong1;  Chu, Wei1, 2
关键词: Anti-coking ;  CO2 hydrogenation ;  Dispersion ;  Nickel precursor ;  beta-SiC
刊名: CHEMISTRYSELECT
发表日期: 2017-05-02
DOI: 10.1002/slct.201601745
卷: 2, 页:3750-3757
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The porous silicon carbide (b-SiC) carrier supported nickellanthanum based catalysts (NiLa/SiC) were synthesized via incipient-wetness impregnation by using two types of nickel salts as the precursor, for the selective hydrogenation of carbon dioxide (CO2 + 4H(2)-> CH4 + 2H(2)O). The alumina supported catalysts were also prepared and tested for comparison. The samples were characterized using TEM, TPR, XRD, SEM, TG-DTG techniques. Compared to the Al2O3 supported catalysts, the SiC supported catalysts were more resistant to sintering and carbon deposition due to the high thermal conductivity of SiC support. The relative weak metal-support interaction on Ni nanoparticles supported on SiC carrier resulted in the easy reduction of active species during the activation process. Meanwhile, the performances of the catalysts prepared from nickel acetate were better than those of using nickel nitrate, while enhanced nickel dispersion and better reducibility of the catalyst from nickel acetate werr evidenced by TEM, TPR and XRD results. Catalytic performances exhibited that Ni-Ac-La/SiC catalyst possessed the higher activity with 89.4% conversion of CO2 and almost 100% selectivity to methane with slight deactivation after 3000 min test under reaction conditions.
关键词[WOS]: FISCHER-TROPSCH SYNTHESIS ;  SILICON-CARBIDE ;  COBALT CATALYSTS ;  CARBON NANOTUBES ;  METHANATION ;  PERFORMANCE ;  SUPPORT ;  NI/GAMMA-AL2O3 ;  SYNGAS ;  TIO2
语种: 英语
WOS记录号: WOS:000401890300023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/152244
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R China
2.Sichuan Univ, Inst New Energy & Low carbon Technol, Chengdu 610065, Sichuan, Peoples R China
3.Southwest Univ Sci & Technol, State Key Lab Cultivat Base Nonmet Composites & F, Mianyang 621010, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy DNL, Dalian 116023, Peoples R China

Recommended Citation:
Li, Le,Zheng, Jian,Liu, Yuefeng,et al. Impacts of SiC Carrier and Nickel Precursor of NiLa/support Catalysts for CO2 Selective Hydrogenation to Synthetic Natural Gas (SNG)[J]. CHEMISTRYSELECT,2017,2:3750-3757.
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