Share This Article:

Removal of Carbon Monoxide from Hydrogen-rich Fuels over CeO2-promoted Pt/Al2O3

Abstract Full-Text HTML Download Download as PDF (Size:192KB) PP. 7-14
DOI: 10.4236/aces.2013.34B002    2,278 Downloads   4,369 Views   Citations

ABSTRACT

A comparative study of catalytic CO oxidation and selective CO oxidation over Pt/Al2O3 and CeO2-promoted Pt/Al2O3 catalysts has been investigated for the removal of a trace amount of CO from the reformed gas. The catalysts were prepared by sol gel and incipient wetness impregnation. CO oxidation and selective CO oxidation were carried out with a 5%Pt/Al2O3 and a 5%Pt/15%CeO2/Al2O3. The presence of 15%CeO2 inthe 5%Pt/Al2O3 dramatically improves the activities to CO oxidation and selective CO oxidation at low temperature (<180). FTIR results indicate that CO could react with lattice oxygen from ceria and release CO2 as a product. Low space velocity would obtain high CO conversion at low temperatures while high space velocity would obtain high CO conversion at high temperatures. The results also show that a 5%Pt/15%CeO2/Al2O3 can completely oxidize 1% CO at180with selectivity of 52% and space velocity of70,000 cm3·g-1·h-1. Under the realistic gas feed with 1%O2, this catalyst is very stable and retains its activity and selectivity at180during 72 h.  

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

A. Wongkaew and P. Limsuwan, "Removal of Carbon Monoxide from Hydrogen-rich Fuels over CeO2-promoted Pt/Al2O3," Advances in Chemical Engineering and Science, Vol. 3 No. 4B, 2013, pp. 7-14. doi: 10.4236/aces.2013.34B002.

References

[1] K. Jost, “Gasoline-reforming Fuel Cell,” Automotive Engineering , 1997, pp. 151-152.
[2] X. Cheng, Z. Shi, N. Glass, L. Zhang, J. Zhang, D. Song, A.-S. Liu, H. Wang and J. Shen, “A Review of PEM Hydrogen Fuel Cell Contamination: Impacts, Mechanisms, and Mitigation,” Journal of Power Sources, Vol. 165, 2007, pp. 739-756. doi:10.1016/j.jpowsour.2006.12.012
[3] S. J. C. Cleghorn, X. Ren, T. E. Springer, M. S. Wilson, C. Zawodzinski, T. A. Zawodzinski and S. Gottesfeld, “PEM fuel Cells for Transportation and Stationary Power Generation Applications,” International Journal of Hydrogen Energy, Vol. 22, 1997, pp. 1137-1144. doi:10.1016/S0360-3199(97)00016-5
[4] W. A. Adams, J. Blair, K. R. Bullock and C. L. Gardner, “Enhancement of the Performance and Reliability of CO Poisoned PEM Fuel Cells,” Journal of Power Sources Vol. 145, No. 1, 2005, pp. 55-61. doi:10.1016/j.jpowsour.2004.12.049
[5] S. Gottesfeld, US patent 4,910,099 Preventing CO poisoning in fuel cells (Mar 20, 1990).
[6] Y. H. Kim, S.-D. Yim and E. D. Park, “Selective CO Oxidation in a Hydrogen-rich Stream Over Ru/SiO2, Catal,” Today, Vol. 185, 2012, pp. 143-150. doi:10.1016/j.cattod.2011.07.022
[7] J. Li, P. Zhu, S. Zuo, Q. Huang and R. Zhou, “Influence of Mn Doping on the Performance of CuO-CeO Catalysts for Selective Oxidation of CO in Hydrogenrich Streams,” Applied Catalysis A: General, Vol. 381, 2010, pp. 261-266.doi:10.1016/j.apcata.2010.04.020
[8] J. W. Park, J. H. Jeong, W. L. Yoon, C. S. Kim, D. K. Lee, Y.-K. Park and Y. W. Rhee, “Selective Oxidation of CO in Hydrogen-rich Stream over Cu–Ce Catalyst Promoted with Transition Metals,” International Journal of Hydrogen Energy, Vol. 30, No. 2, 2005, pp. 209-220. doi:10.1016/j.ijhydene.2004.04.016
[9] Y. -F. Han, M. Kinne, R. J. Behm, “Selective Oxidation of CO on Ru/γ-Al2O3 in Methanol Reformate at Low Temperatures, Appl. Catal. B: Environ, Vol. 52, No. 2, 2004, pp. 123-134.doi:10.1016/j.apcatb.2004.03.017
[10] C.-T. Chang, B.-J. Liaw, Y.-P. Chen, Yin-Zu Chen, “Characteristics of Au/MgxAlO Hydrotalcite Catalysts in CO Selective Oxidation, Journal of Molecular Catalysis A: Chemical, Vol. 300, No. 1-2, 2009, pp. 80-88. doi:10.1016/j.molcata.2008.10.040
[11] M. Kotobuki, A. Watanabe, H. Uchida, H. Yamashita, M. Watanabe, “Development of Pt/ZSM-5 Catalyst with High CO Selectivity for Preferential Oxidation of Carbon Monoxide in a Reformed Gas,” Chem. Lett. Vol. 34, 2005, pp. 866-867. doi:10.1246/cl.2005.866
[12] J. L. Ayastuy, A. Gil-Rodríguez, M. P. González-Marcos, M. A. Gu-tiérrez-Ortiz, Effect of Process Variables on Pt/CeO2 Catalyst Behavior for the PROX Reaction, International Journal of Hydrogen Energy, Vol. 31, 2006, pp. 2231-2242.doi:10.1016/j.ijhydene.2006.04.008
[13] M. Kotobuki, A. Watanabe, H. Uchida, H. Yamashita, M. Watanabe, “High Catalytic Performance of Pt-Fe Alloy Nanoparticles Supported in Mordenite Pores for Preferential CO Oxidation in H2-rich Gas, Applied Catalysis A: General, Vol. 307, 2006, pp. 275-283. doi:10.1016/j.apcata.2006.04.003
[14] M. J. Kahlich, H. A. Gasteiger and R. J. Behm, “Kinetics of the Selective CO Oxidation in H2-Rich Gas on Pt/Al2O3,” Journal of Catalysis, Vol. 171, 1997, pp. 93-105. doi:10.1006/jcat.1997.1781
[15] I. H. Son, M. Shamsuzzoha and A. M. Lane, “Promotion of Pt/γ-Al2O3 by New Pretreatment for Low-Temperature Preferential Oxidation of CO in H2 for PEM Fuel Cells,” Journal of Catalysis, Vol. 210, 2002, pp. 460-465. doi:10.1006/jcat.2002.3707
[16] A. Manasilp and E. Gulari, “Selective CO Oxidation over Pt/alumina Catalysts for Fuel Cell Applications, Applied Catalysis B: environmental, Vol. 37, 2002, pp. 17-25. doi:10.1016/S0926-3373(01)00319-8
[17] H. Tanaka, M. Kuriyama, Y. Ishida, S.-I. Ito and K. Tomishige, “Preferential CO Oxidation in Hydrogen-rich Stream over Pt Catalysts Modified with Alkali Metals: Part II. Catalyst Characterization and Role of Alkali Metals,” Applied Catalysis A: Generl, Vol. 343, No. 1-2, 2008, pp. 125-133 doi:10.1016/j.apcata.2008.03.029
[18] Y. Li, Q. Fu, M. F., Stephanopoulos, Low-temperature water-gas shift reaction over Cu- and Ni-loaded cerium oxide catalysts, Applied Catalysis B: Environmental, Vol. 27, No. 3, 2000, pp. 179-191. doi:10.1016/S0926-3373(00)00147-8
[19] C. Serre, F. Garin, G. Belot and G. Maire, “Reactivity of Pt/Al2O3 and Pt-CeO2Al2O3 Catalysts for the Oxidation of Carbon Monoxide by Oxygen: I. Catalyst Characterization by TPR Using CO as Reducing Agent,” Journal of Catalysis, Vol. 141, No. 1, 1993, pp. 1-8. doi:10.1006/jcat.1993.1113
[20] A. Martînez-Arias, J. M. Coronado, R. Cataluña, J. C. Conesa and J. Soria, “Influence of Mutual Platinum-Dispersed Ceria Interactions on the Promoting Effect of Ceria for the CO Oxidation Reaction in a Pt/CeO2/Al2O3 Catalyst,” The Journal of Physical Chemistry Letters B, Vol. 102, 1998, pp. 4357-4365. doi:10.1021/jp9805306
[21] A. Parinyaswan, S. Pongstabodee and A. Luengnaruemitchai, “Catalytic Performances of Pt–Pd/CeO2 Catalysts for Selective CO Oxidation,” International Journal of Hydrogen Energy, Vol. 31, No. 13, 2006, pp. 1942-1949. doi:10.1016/j.ijhydene.2006.05.002
[22] F. A. Silva, D. S. Martinez, J. A. C. Ruiz, L. V. Mattos, C. E. Hori, G. B. Noronha, The Effect of the Use of Cerium-doped Alumina on the Performance of Pt/CeO2/Al2O3 and Pt/CeZrO2/Al2O3 Catalysts on the Partial Oxidation of Methane, Applied Catalysis A: General, Vol. 335, 2008, pp. 145-152. doi:10.1016/j.apcata.2007.11.003
[23] J. C. Brown and E. Gulari, “Hydrogen Production from Methanol Decomposition over Pt/Al2O3 and Ceria Promoted Pt/Al2O3 Catalysts, Catalysis Communications, Vol. 5, No. 8, 2004, pp. 431-436. doi:10.1016/j.catcom.2004.05.008
[24] I. H. Son and A. M. Lane, Promotion of Pt/γ-Al2O3 by Ce for Preferential Oxidation of CO in H2, Catalysis Letters, Vol. 76, No. 3-4, 2001, pp. 151-154. doi:10.1023/A:1012293311973
[25] I. H. Son, Study of Ce-Pt/γ-Al2O3 for the Selective Oxidation of CO in H2 for Application to PEFCs: Effect of Gases, Journal of Power Sources, Vol. 159, 2006, pp. 1266-1273. doi:10.1016/j.jpowsour.2005.12.014
[26] B. E. Yoldas, “Alumina Sol Preparation from Alkoxides,” Ceram. Bull, Vol. 54, 1975, pp. 289-290.
[27] J. H. B. J. Hoebink, J. P. Huinink and G. B. Marin, “A Quantitative Analysis of Transient Kinetic Experiments: The Oxidation of CO by O2 over Pt,” Applied Catalysis A: General, Vol. 160, 1997, pp. 139-151. doi:10.1016/S0926-860X(97)00132-4
[28] C. Serre, F. Garin, G. Belot and G. Maire, “Reactivity of Pt/Al2O3 and Pt-CeO2Al2O3 Catalysts for the Oxidation of Carbon Monoxide by Oxygen : II. Influence of the Pretreatment Step on the Oxidation Mechanism,” Journal of Catalysis, Vol. 141, 1993, pp. 9-20. doi:10.1006/jcat.1993.1114
[29] D. Liu, G.-H. Que, Z.-X. Wang and Z.-F. Yan, “In Situ FT-IR Study of CO and H2 Adsorption on a Pt/Al2O3 Catalyst,” Catalysis Today, Vol. 68, No. 1-3, 2001, pp. 155-160. doi:10.1016/S0920-5861(01)00306-6
[30] A. Holmgren, G. Andersson and D. Duprez, “Interactions of CO with Pt/ceria Catalysts,” Applied Catalysis B: Environmental, Vol. 22, No. 3, 1999, pp. 215-230. doi:10.1016/S0926-3373(99)00047-8
[31] A. Holmgren, D. Duprez, B. Andersson, “A Model of Oxygen Transport in Pt/Ceria Catalysts from Isotope Exchange,” Journal of Catalysis, Vol. 182, No. 2, 1999, pp. 441-448.doi:10.1006/jcat.1998.2334
[32] J. L. Ayastuy, M. P. González-Marcos, A. Gil-Rodríguez, J. R. González-Velasco, M. A. Gutiérrez-Ortiz, “Selective CO Oxidation over CeXZr1?XO2-supported Pt Catalysts, Ca-talysis Today, Vol. 116, 2006, pp. 391-399. doi:10.1016/j.cattod.2006.05.074
[33] E. Simsek, S. Ozkara, A. E. Aksoylu and Z. I. Onsan, “Preferential CO Oxida-tion over Activated Carbon Supported Catalysts in H2-rich Gas Streams Containing CO2 and H2O, Applied Catalysis A: General, Vol. 316, No. 2, 2007, pp. 169-174 doi:10.1016/j.apcata.2006.09.001

  
comments powered by Disqus

Copyright © 2018 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.