Synthesis of lanthanide series (La, Ce, Pr, Eu & Gd) promoted Ni/γ-Al2O3 catalysts for methanation of CO2 at low temperature under atmospheric pressure

被引：71

作者：

Ahmad, Waciar ^{[1
,2
]}

Younis, Muhammad Naeem ^{[1
]}

Shawabkeh, Reyad ^{[1
]}

Ahmed, Shakeel ^{[3
]}

机构：

[1] King Fahd Univ Petr & Minerals, Dept Chem Engn, Dhahran 31261, Saudi Arabia

[2] Monash Univ, Dept Chem Engn, Clayton, Vic 3800, Australia

[3] King Fahd Univ Petr & Minerals, Res Inst, Ctr Refining & Petrochem, Dhahran 31261, Saudi Arabia

来源：

CATALYSIS COMMUNICATIONS | 2017年 / 100卷

关键词：

Lanthanide series promoters; Ni based catalysts; gamma-Al2O3; support; Methanation of CO2; MESOSTRUCTURED SILICA NANOPARTICLES; CARBON-DIOXIDE METHANATION; THERMODYNAMIC ANALYSIS; NI; HYDROGENATION; PERFORMANCE; OXIDES; CU;

D O I：

10.1016/j.catcom.2017.06.044

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of Nity-A1203 and 5%X-12%Ni/gamma-Al2O3 (X = La, Ce, Pr, Eu & Gd) catalysts was synthesized by using aqueous incipient impregnation method for methanation of carbon dioxide. 5%Pr-12%Ni/gamma-Al2O3 showed the highest CO2 conversion of 98.2% with 100% CH4 selectivity at 300 degrees C for investigated reaction conditions. The catalyst activity was also tested for 48 h which showed the stability of synthesized catalyst for CO2 conversion and CH4 selectivity. The TEM, BET and XRD analysis demonstrated the high metal dispersion, no remarkable effect on textural properties of 5%Pr-12%Ni/gamma-Al2O3 as compared to 12%Ni/gamma-Al2O3 and phases of alumina, nickel and lanthanide series promoters for gamma-Al2O3 support, 12%Ni/gamma-Al2O3 and 5%X-12%Ni/gamma-Al2O3 catalysts.

引用

页码：121 / 126

页数：6

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