The effect of potassium on the activity and stability of Ni-MgO-ZrO2 catalysts for the dry reforming of methane to give synthesis gas

被引：56

作者：

Nagaraja, Bhari Mallanna ^{[1
,2
]}

Bulushev, Dmitri A. ^{[1
,2
]}

Beloshapkin, Sergey ^{[2
]}

Ross, Julian R. H. ^{[1
]}

机构：

[1] Univ Limerick, Charles Parsons Initiat, Chem & Environm Sci Dept, Limerick, Ireland

[2] Univ Limerick, Mat & Surface Sci Inst, Limerick, Ireland

来源：

CATALYSIS TODAY | 2011年 / 178卷 / 01期

基金：

爱尔兰科学基金会;

关键词：

Dry reforming of methane; Ni-MgO-ZrO2; catalyst; Promotion with K; H-2; production; Synthesis gas; Deactivation; CARBON-DIOXIDE; NICKEL-CATALYST; NATURAL-GAS; OXIDE; COKE;

D O I：

10.1016/j.cattod.2011.08.040

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

It has been found that the addition of 0.5 wt.% potassium to a catalyst consisting of 8 wt.% Ni supported on a MgO-ZrO2 support prepared by co-precipitation improved both the activity and stability of this material for the dry reforming of methane. Increasing the content of potassium caused a decrease in the catalytic activity but the stabilities of the resultant catalysts were still higher than those for the undoped catalyst. The BET surface areas of the catalysts increased with potassium content. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：132 / 136

页数：5

共 25 条

[1] Chemisorption of methane on Ni(100) and Ni(111) surfaces with preadsorbed potassium [J].

Bengaard, HS ;

Alstrup, I ;

Chorkendorff, I ;

Ullmann, S ;

Rostrup-Nielsen, JR ;

Norskov, JK .

JOURNAL OF CATALYSIS, 1999, 187 (01) :238-244

[2] TEM evidence for factors affecting the genesis of carbon species on bare and K-promoted Ni/MgO catalysts during the dry reforming of methane [J].

Frusteri, F ;

Spadaro, L ;

Arena, F ;

Chuvilin, A .

CARBON, 2002, 40 (07) :1063-1070

[3]

Frusteri F., 2001, Catalysis Communications, V2, P49, DOI [DOI 10.1016/S1566-7367(01)00008-5, 10.1016/S1566-7367]

[4] Effect of MgO addition on the basicity of Ni/ZrO2 and on its catalytic activity in carbon dioxide reforming of methane [J].

Garcia, Veronica ;

Fernandez, Jhon J. ;

Ruiz, Wilson ;

Mondragon, Fanor ;

Moreno, Andres .

CATALYSIS COMMUNICATIONS, 2009, 11 (04) :240-246

[5] Synthesis and characterization of ZrO2-MgO solid solutions by citrate gel process [J].

Gocmez, Hasan ;

Fujimori, Hirotaka .

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2008, 148 (1-3) :226-229

[6]

HALLY W, 1994, STUD SURF SCI CATAL, V88, P167

[7] Syngas production from natural gas using ZrO2-supported metals [J].

Hegarty, MES ;

O'Connor, AM ;

Ross, JRH .

CATALYSIS TODAY, 1998, 42 (03) :225-232

[8] Effect of potassium content in the activity of K-promoted Ni/Al2O3 catalysts for the dry reforming of methane [J].

Juan-Juan, J ;

Román-Martínez, MC ;

Illán-Gómez, MJ .

APPLIED CATALYSIS A-GENERAL, 2006, 301 (01) :9-15

[9] Carbon dioxide reforming of methane over a metal modified Ni-Al2O3 catalyst [J].

Luna, Adolfo E. Castro ;

Iriarte, Maria E. .

APPLIED CATALYSIS A-GENERAL, 2008, 343 (1-2) :10-15

[10]

LUNA AEC, 2010, INT J HYDROGEN ENERG, V35, P6052

← 1 2 3 →