Selective Catalytic Oxidation of CO in H2 over Copper-Exchanged Zeolites

被引：0

作者：

Tachard, Ivana ^{[1
]}

da Silva, Anna C. B. ^{[1
]}

Argolo, Fabio ^{[1
]}

Brito, Suzana M. O. ^{[2
]}

Pastore, Heloise O. ^{[3
]}

Andrade, Heloysa M. C. ^{[1
]}

Mascarenhas, Artur J. S. ^{[1
]}

机构：

[1] Univ Fed Bahia UFBA, Inst Quim Selective Catalytic Oxidation of CO in, Dept Quim Geral & Inorgan, Lab Catalise & Mat, Salvador, BA, Brazil

[2] Univ Estadual Feira de Santana, Dept Ciencias Extras, Lab Catalise & Adsorcao, Feira de Santana, BA, Brazil

[3] Univ Estadual Campinas, Inst Quim, Grp Peneiras Mol Micro & Mesoporosa, Campinas, SP, Brazil

来源：

NATURAL GAS CONVERSION VIII, PROCEEDINGS OF THE 8TH NATURAL GAS CONVERSION SYMPOSIUM | 2007年 / 167卷

关键词：

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Copper-exchanged zeolites were investigated as catalysts for the selective catalytic oxidation of CO in H-2 rich feeds. Three different zeolitic topologies were chosen: MFI, MWW and FAU. Under dry conditions the following order of activity in conversion of CO to CO2 was observed: Cu-ZSM-5 > Cu-Y > Cu-MCM-22. However, under wet conditions (H2O/CO = 3.0) and stoichiometric CO/O-2 ratio of 1:0.5, Cu-ZSM-5 has presented a better performance than commercial 0.5 wt% Pt/Al2O3. By-products, such as methane or methanol, were not detected in the reaction effluents.

引用

页码：195 / 200

页数：6

共 20 条

[11] Effects of additional gases on the catalytic decomposition of N2O over Cu-ZSMe-5
Mascarenhas, AJS
Andrade, HMC
[J]. REACTION KINETICS AND CATALYSIS LETTERS, 1998, 64 (02): : 215 - 220
[12] Statistical analysis and optimization of temperature programmed reduction (TPR) analysis.
Nele, Marcio
Moreno, Esteban Lopez
Carvalho Andrade, Heloysa Martins
[J]. QUIMICA NOVA, 2006, 29 (04): : 641 - 645
[13] Olson D.H., 2001, ATLAS ZEOLITE FRAMEW
[14] Selective oxidation of carbon monoxide in hydrogen-rich stream over Cu-Ce/γ-A12O3 catalysts promoted with cobalt in a fuel processor for proton exchange membrane fuel cells
Park, JW
Jeong, JH
Yoon, WL
Rhee, YW
[J]. JOURNAL OF POWER SOURCES, 2004, 132 (1-2) : 18 - 28
[15] Robson H., 2001, VERIFIED SYNTHESES Z, V2nd
[16] Investigation of the initial rapid deactivation of platinum catalysts during the selective oxidation of carbon monoxide
Sirijaruphan, A
Goodwin, JG
Rice, RW
[J]. JOURNAL OF CATALYSIS, 2004, 221 (02) : 288 - 293
[17] Selective oxidation of carbon monoxide in excess hydrogen over Pt-, Ru- and Pd-supported catalysts
Snytnikov, PV
Sobyanin, VA
Belyaev, VD
Tsyrulnikov, PG
Shitova, NB
Shlyapin, DA
[J]. APPLIED CATALYSIS A-GENERAL, 2003, 239 (1-2) : 149 - 156
[18] The study of the deactivation of water-pretreated Pt/γ-Al2O3 for low-temperature selective CO oxidation in hydrogen
Son, IH
Lane, AM
Johnson, DT
[J]. JOURNAL OF POWER SOURCES, 2003, 124 (02) : 415 - 419
[19] Souza T.R.O., 2006, REACTION KINETICS CA, V87, P3
[20] Hydrogen purification for fuel cells: selective oxidation of carbon monoxide on Pt-Fe/zeolite catalysts
Watanabe, M
Uchida, H
Ohkubo, K
Igarashi, H
[J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2003, 46 (03) : 595 - 600

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