Highly stable Ni catalyst supported on Ce-ZrO2 for oxy-steam reforming of methane

被引：142

作者：

Roh, HS

Jun, KW

Dong, WS

Park, SE

Baek, YS

机构：

[1] Korea Res Inst Chem Technol, Catalysis Ctr Mol Engn, Taejon 305600, South Korea

[2] Korea Gas Corp, LNG Technol Res Ctr, Yeonsu Ku, Inchon 406130, South Korea

来源：

CATALYSIS LETTERS | 2001年 / 74卷 / 1-2期

关键词：

Ni/Ce-ZrO2; methane; steam reforming; oxy-steam reforming; Ce modifier;

D O I：

10.1023/A:1016699317421

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 novel catalyst, Ni/Ce-ZrO2, exhibits very high catalytic activity and stability even in the stoichiometric steam reforming of methane (H2O/CH4 = 1). Furthermore, when it was employed in oxy-steam reforming, it gave enhanced CH4 conversion (99.1%) at 750 degreesC and the activity was maintained for 100 h. The high catalyst stability is mainly ascribed to the synergistic effect of the Ce modifier resulting from high capacity to store oxygen and high ability to produce mobile oxygen.

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收藏

页码：31 / 36

页数：6

相关论文

共 14 条

[1] The multiple roles for catalysis in the production of H2 [J].

Armor, JN .

APPLIED CATALYSIS A-GENERAL, 1999, 176 (02) :159-176

[2] PARTIAL OXIDATION OF METHANE TO SYNTHESIS GAS-USING CARBON-DIOXIDE [J].

ASHCROFT, AT ;

CHEETHAM, AK ;

GREEN, MLH ;

VERNON, PDF .

NATURE, 1991, 352 (6332) :225-226

[3] Catalytic activity and coke resistance in the carbon dioxide reforming of methane to synthesis gas over zeolite-supported Ni catalysts [J].

Chang, JS ;

Park, SE ;

Chon, HZ .

APPLIED CATALYSIS A-GENERAL, 1996, 145 (1-2) :111-124

[4] NIO/CAO-CATALYZED FORMATION OF SYNGAS BY COUPLED EXOTHERMIC OXIDATIVE CONVERSION AND ENDOTHERMIC CO2 AND STEAM REFORMING OF METHANE [J].

CHOUDHARY, VR ;

RAJPUT, AM ;

PRABHAKAR, B .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1994, 33 (20) :2104-2106

[5] CO2 reforming of CH4 over Ni perovskite catalysts prepared by solid phase crystallization method [J].

Hayakawa, T ;

Suzuki, S ;

Nakamura, J ;

Uchijima, T ;

Hamakawa, S ;

Suzuki, K ;

Shishido, T ;

Takehira, K .

APPLIED CATALYSIS A-GENERAL, 1999, 183 (02) :273-285

[6]

Jun KW, 1998, B KOR CHEM SOC, V19, P466

[7]

Li XS, 2001, APPL ORGANOMET CHEM, V15, P109, DOI 10.1002/1099-0739(200102)15:2<109::AID-AOC102>3.0.CO

[8]

2-U

[9] Carbon as an intermediate during the carbon dioxide reforming of methane over zirconia-supported high nickel loading catalysts [J].

Li, XS ;

Chang, JS ;

Park, SE .

CHEMISTRY LETTERS, 1999, (10) :1099-1100

[10] The role of rare earth dopants in nanophase zirconia catalysts for automotive emission control [J].

Loong, CK ;

Ozawa, M .

JOURNAL OF ALLOYS AND COMPOUNDS, 2000, 303 :60-65