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http://dx.doi.org/10.9713/kcer.2011.49.2.155

Dimethyl Ether Formation Using a Zeolite Catalyst Impregnated with Ceria  

Kim, Bo-Kyung (Green Chemistry Research Division, KRICT)
Koh, Jae-Cheon (Green Chemistry Research Division, KRICT)
Kim, Beom-Sik (Green Chemistry Research Division, KRICT)
Han, Myung-Wan (Department of Chemical Engineering, Chungnam National University)
Publication Information
Korean Chemical Engineering Research / v.49, no.2, 2011 , pp. 155-160 More about this Journal
Abstract
Dimethyl ether draws an attention as a green fuel in recent years. In this study, we investigated dehydration of methanol to produce DME using solid-acid catalysts, a series of zeolite. We found that ceria took a role of promoting the reaction conversion as well as selectivity of DME formation as a cocatalyst to the zeolite catalyst. We varied Si/Al ratio and ceria percentage on the surface of the catalyst to get high performance catalyst. ZSM5-30 with 5 wt% ceria on the surface was found to have excellent DME selectivity and to be little influenced by water content in methanol feed. We proposed a reaction model and obtained kinetic parameters for the DME formation using the catalyst based on experimental results using a microreactor.
Keywords
Dimethyl Ether; Methanol; Dehydration; Zeolite Catalyst; Ceria Cocatalyst;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 McCandless, J. C., Park, G. P. and Mich, "Dimethyl Ether Powered Engine," U.S. Patent 5,626,294(1997).
2 Kim, J. W., Sim, K. S. and Han, S. D., "Dimethyl Ether as a Diesel Fuel Alternative," Energy Engg. J., 7(2), 157-162(1998).
3 Choi, J. W., Lee, S. H., Sim, K. S., Kim, J. W. and Kim, S. H., "Direct Synthesis of Dimethyl Ether from Syngas in a Slurry Phase and Gas Phase Reactor," Energy Engg. J., 10(1), 49-54 (2001).
4 Jun, K. W. and Roh, H. S., "Status of DME Production technology in Korea," News & Information for Chemical Engineers, 20(5), 519-521(2002).
5 Jun, K. W., Lee, H. S., Roh, H. S. and Park, S. E., Bull. Korean Chem. Soc., 23, 803(2002).   DOI   ScienceOn
6 Xu, M., Lunsford, J. H., Goodman, D. W. and Bhattacharyyab, A., "Synthesis of Dimethyl Ether (DME) from Methanol over Solid-acid Catalysts," Appl. Catal. A, 149, 289-301(1997).   DOI   ScienceOn
7 Koo, Y. H. and Han, M., "Dimethyl Ether Production Using a Reactive Distillation Process," Korean Chem. Eng. Res. (HWAHAK KONGHAK), 42, 44 (2004).
8 Yaripour, F., Baghaei, F., Schmidt, I. and Perregaard, J., "Catalytic Dehydration of Methanol to Dimethyl Ether(DME) over Solid-acid Catalysts," Catal. Commun., 6, 147-152(2005).   DOI   ScienceOn
9 Semelsberger, T. A., Ott, K. C., Borup, R. L. and Greene, H. L., "Role of Acidity on the Hydrolysis of Dimethyl Ether(DME) to Methanol," Appl. Catal. B: Environ., 61, 281-287(2005).   DOI   ScienceOn
10 Levenspiel, O., Chemical Reaction Engineering, 3rd ed., John Wiley & Sons, New York(1998).