Ni/bentonite catalysts prepared by solution combustion method for CO_2 methanation

Yuexiu Jiang; Tongxia Huang; Lihui Dong; Zuzeng Qin; Hongbing Ji

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Ni/bentonite catalysts prepared by solution combustion method for CO_2 methanation

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A 20 wt% Ni/bentonite catalyst was prepared by a solution combustion synthesis (SCS), which exhibited higher activity for the CO_2methanation than that of an impregnation method (IPM), and the catalyst prepared by SCS showed a CO_2 conversion of 85% and a CH4selectivity of 100% at 300 °C, atmospheric pressure, and 3600 ml·(g cat)-1·h-1, and the catalyst exhibited stable within a 110-h reaction. The results showed higher me- tallic Ni dispersion, smaller Ni particle size, larger specific surface area and lower reduction temperature in the Ni/ bentonite prepared by SCS than that of IPM. And the Ni/bentonite prepared by the SCS moderated the interaction between NiO and bentonite.

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《中国化学工程学报：英文版》 |2018年第11期|2361-2367|共7页
作者
Yuexiu Jiang; Tongxia Huang; Lihui Dong; Zuzeng Qin; Hongbing Ji;
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作者单位

School of Chemistry and Chemical Engineering;

Guangxi Key Laboratory of Electrochemical Energy Materials;

Guangxi University;

School of Chemistry;

Sun Yat-sen University;

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原文格式 PDF
正文语种 chi
中图分类化学工业;
关键词
CO2; methanation; Ni/bentonite; catalyst; Solution; combustion; synthesis; Impregnation; method;

Ni/bentonite catalysts prepared by solution combustion method for CO_2 methanation

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