Abstract
A kinetic study of the catalytic methanol decomposition to carbon monoxide and hydrogen has been carried out in the pressure range of methanol up to 8 atm at 200 and 250°C over a palladium catalyst supported on an oxidized aluminum plate. The reaction pathway can be proposed as (i) dissociative adsorption of methanol to methoxyl groups and hydrogen adsorbed on palladium sites, (ii) decomposition of the methoxyl groups to carbon monoxide and hydrogen adsorbed, and (iii) desorption of the surface carbon monoxide and hydrogen species. It is suggested that the second step is rate-determining and the surface hydrogen species enhance the decomposition of the methoxyl groups.
Similar content being viewed by others
References
W. Keim, ed., Catalysis in C1 Chemistry(Reidel, Dordrecht, 1983).
J.M. Fox, Catal. Rev. Sci. Eng. 35 (1993) 169.
Reports of Eco-Energy City Project(New Energy and Industrial Technology Development Organization and The Energy Conservation Center, Tokyo, 1997).
National Research Council, Catalysis Looks to the Future(National Academy Press, Washington, DC, 1992).
K. Murata, K. Yamamoto and H. Kameyama, Int. J. Hydrogen Energy 21 (1996) 201.
H. Kameyama, M. Inoue, R. Yamanaka and K. Murata, Chem. Eng. 36 (1991) 42.
H. Niiyama, S. Tamai, J.S. Kim and E. Echigoya, J. Jpn. Petrol. Inst. 24 (1981) 322.
Y. Saitoh, S. Ohtsu, Y. Makie, T. Okada and Y. Terumuma, Bul. Chem. Soc. Jpn. 63 (1990) 108.
D.T. Wickham, B.W. Logsdon, S.W. Cowley and C.D. Butler, J. Catal. 128 (1991) 198.
N. Iwasa, O. Yamamoto, T. Akazawa, S. Ohyama and N. Takezawa, J. Chem. Soc. Chem. Commun. (1991) 1322.
N. Fukuhara, S. Sekiguchi, H. Mutoh and T. Igarashi, Kagaku Kogaku Ronbunshu 21 (1995) 1002.
Y. Matsumura, M. Okumura, Y. Usami, K. Kagawa, H. Yamashita, M. Anpo and M. Haruta, Catal. Lett. 44 (1997) 189.
K. Christmann and J.E. Demuth, J. Chem. Phys. 76 (1982) 6308, 6318.
G.A. Kok, A. Noordermeer and B.E. Nieuwenhuys, Surf. Sci. 135 (1983) 65.
J.L. Davis and M.A. Barteau, Surf. Sci. 187 (1987) 387.
J. Rask, J. Bontovics and F. Solymosi, J. Catal. 146 (1994) 22.
R. Shekhar and M.A. Barteau, Catal. Lett. 31 (1995) 221.
K. Aika, H. Sekiya and A. Ozaki, C1 Mol. Chem. 1 (1984) 65.
M.A. Vannice and P. Chou, Strong Metal-Support Interactions, ACS Symposium Series, Vol. 298, eds. R.T.K. Baker, S.J. Tauster and J.A. Dumesic (American Chemical Society, Washington, DC, 1986) p. 76.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Shiizaki, S., Nagashima, I., Matsumura, Y. et al. A kinetic study of methanol decomposition catalyzed over plate-type palladium catalyst. Catalysis Letters 56, 227–230 (1998). https://doi.org/10.1023/A:1019077616888
Issue Date:
DOI: https://doi.org/10.1023/A:1019077616888