Deactivation studies of Rh/Ce0.8Zr0.2O2 catalysts in low temperature ethanol steam reforming

被引：38

作者：

Platon, Alex ^{[1
]}

Roh, Hyun-Seog ^{[1
]}

King, David L. ^{[1
]}

Wang, Yong ^{[1
]}

机构：

[1] Pacific NW Natl Lab, Richland, WA 99352 USA

来源：

TOPICS IN CATALYSIS | 2007年 / 46卷 / 3-4期

关键词：

ethanol; steam reforming; catalyst deactivation;

D O I：

10.1007/s11244-007-9007-6

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Rapid deactivation of Rh/Ce0.8Zr0.2O2 catalysts during low temperature ethanol steam reforming was studied. A significant build-up of reaction intermediates, instead of carbon deposit, was observed at low reaction temperatures. This appears to be the cause of rapid catalyst deactivation. Co-feed experiments indicated that possible intermediate products acetone and ethylene caused more severe catalyst deactivation than other oxygenates such as acetic acid and acetaldehyde.

引用

收藏

页码：374 / 379

页数：6

相关论文

共 32 条

[11] A thermodynamic analysis of hydrogen production by steam reforming of ethanol via response reactions [J].

Fishtik, I ;

Alexander, A ;

Datta, R ;

Geana, D .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2000, 25 (01) :31-45

[12]

FODOR K, 2006, 232 ACS NAT M SAN FR

[13] Ethanol steam reforming in a molten carbonate fuel cell: A thermodynamic approach [J].

Freni, S ;

Maggio, G ;

Cavallaro, S .

JOURNAL OF POWER SOURCES, 1996, 62 (01) :67-73

[14] Catalytic properties of supported cobalt catalysts for steam reforming of ethanol [J].

Haga, F ;

Nakajima, T ;

Miya, H ;

Mishima, S .

CATALYSIS LETTERS, 1997, 48 (3-4) :223-227

[15] Current status of hydrogen production techniques by steam reforming of ethanol: A review [J].

Haryanto, A ;

Fernando, S ;

Murali, N ;

Adhikari, S .

ENERGY & FUELS, 2005, 19 (05) :2098-2106

[16] Raney Ni-Sn catalyst for H2 production from biomass-derived hydrocarbons [J].

Huber, GW ;

Shabaker, JW ;

Dumesic, JA .

SCIENCE, 2003, 300 (5628) :2075-2077

[17] Low-temperature reforming of ethanol over CeO2-supported Ni-Rh bimetallic catalysts for hydrogen production [J].

Kugai, J ;

Velu, S ;

Song, CS .

CATALYSIS LETTERS, 2005, 101 (3-4) :255-264

[18]

Levenspiel O., 1972, CHEM REACTION ENG

[19] Production of hydrogen for fuel cells by steam reforming of ethanol over supported noble metal catalysts [J].

Liguras, DK ;

Kondarides, DI ;

Verykios, XE .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2003, 43 (04) :345-354

[20] CO-free hydrogen from steam-reforming of bioethanol over ZnO-supported cobalt catalysts - Effect of the metallic precursor [J].

Llorca, J ;

de la Piscina, PR ;

Dalmon, JA ;

Sales, J ;

Homs, N .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2003, 43 (04) :355-369

← 1 2 3 4 →