Effect of La2O3 on methanation of CO and CO2 over Ni-Mo/γ-Al2O3 catalyst

被引：0

作者：

Wang, MW

Luo, LT

Li, FY

Wang, JJ

机构：

[1] Department of Chemical Engineering, Nanchang University, Nanchang, 330029, China

[2] Institute of Applied Chemistry, Nanchang University, Nanchang 330047, China

来源：

JOURNAL OF RARE EARTHS | 2000年 / 18卷 / 01期

关键词：

rare earths; Ni-Mo-La catalyst; carbon monoxide; carbon dioxide; methanation;

D O I：

暂无

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A series of Ni-Mo/gamma-Al2O3 methanation catalysts containing La2O3 were prepared by impregnation. The activities of catalysts for CO and CO2 methanation were investigated. The surface properties of the catalysts were studied by TEM, XPS and chemisorption of CO. The experimental results show that the addition of La2O3 increases the activities for the methanation of CO and CO2, the dispersity of nickel on catalysts, the active nickel surface area and the concentration of nickel atoms on the surface of Ni-Mo/gamma-Al2O3 catalysts. At the same time, it also decreases the binding energy of Ni-2P3/2 in catalysts.

引用

页码：22 / 26

页数：5

共 8 条

[1]

CHANG LP, 1994, J FUEL CHEM TECHNOLO, V22, P170

[2]

HU CW, 1994, CHEM RES APPL, V6, P54

[3] HYDROGENATION OF SURFACE CARBON ON ALUMINA-SUPPORTED NICKEL [J].

MCCARTY, JG ;

WISE, H .

JOURNAL OF CATALYSIS, 1979, 57 (03) :406-416

[4] CO2 HYDROGENATION OVER NICKEL ZIRCONIA CATALYSTS FROM AMORPHOUS PRECURSORS - ON THE MECHANISM OF METHANE FORMATION [J].

SCHILD, C ;

WOKAUN, A ;

KOEPPEL, RA ;

BAIKER, A .

JOURNAL OF PHYSICAL CHEMISTRY, 1991, 95 (16) :6341-6346

[5]

WANG HM, 1987, CHEM B, V1, P30

[6]

WANG R, 1983, J FUEL CHEM TECHNOLO, V11, P1

[7]

ZAGKI AE, 1979, J CATAL, V56, P453

[8]

ZHOU SZ, 1991, CHEM ENG, V19, P24

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