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Received July 5, 2002
Accepted October 10, 2002
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Mobile and Non-mobile Catalysts for Diesel-Particulate Combustion: A Kinetic Study
Department of Materials Science and Chemical Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24 10129 Torino, Italy
debora.fino@polito.it
Korean Journal of Chemical Engineering, May 2003, 20(3), 451-456(6), 10.1007/BF02705546
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Abstract
One of the potential ways to solve the problem of diesel particulate emission from both stationary and mobile sources is the use of traps carrying a suitable catalyst for promoting particulate combustion as soon as it is filtered. A Cu-K-V based catalyst, considered among the most promising in the literature, the KVO3+CsCl and the K0.7Cu0.3VO3+KCl catalysts were prepared and investigated. Their performance was compared to a reference V2O5 catalyst. The superior performance of the Cu-K-V catalyst is based on the grounds of both microreactor (temperature_x000D_
programmed combustion) and catalytic trap tests. Based on experimental data and modelling calculations, this paper elucidates how the mobility of catalyst components is the main reason for such an outcome performance and is a prerequisite to achieve an activity sufficient for trap self-regeneration.
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Fino D, Saracco G, Specchia V, Chem. Eng. Sci., 57(22-23), 4955 (2002)
Papalexandri KP, Dimkou TI, Ind. Eng. Chem. Res., 37(5), 1866 (1998)
Luijk R, Akkerman AM, Slot P, Olie K, Kapteijn VF, Environ. Sci. Technol., 28, 312 (1994)
Matsunuma K, Ban S, Tsubouchi T, Nakamura H, Nagai Y, Hannamoto Y, Ihara T, Nakajima S, Okamoto S, Sumitomo Electric Technical Rev., 42, 67 (1996)
Neeft JP, Schipper W, Mul G, Makkee M, Moulijn JA, Appl. Catal. B: Environ., 11(3-4), 365 (1997)
Neeft JP, Vanpruissen OP, Makkee M, Moulijn JA, Appl. Catal. B: Environ., 12(1), 21 (1997)
Oh SH, McDonald S, Vaneman GL, Hegedus LL, "Mathematical Modelling of Fibrous Filters for Diesel Particulate-Theory and Experiment," SAE Technical Paper Series, Nr. 810113 (1981)
Rah SC, Korean J. Chem. Eng., 1(2), 89 (1984)
Rah SC, Korean J. Chem. Eng., 2(1), 1 (1985)
Saracco G, Fino D, "Multifunctional Catalytic Reactors for Exhaust Gas Treatment," Advances in Environmental Materials, Volume I: Pollution Control Materials, T. White and D. Sun Eds., MRS Singapore Publishers, 273 (ISBN 981-04-4991-7) (2001)
Saracco G, Badini C, Russo N, Specchia V, Appl. Catal. B: Environ., 21(4), 233 (1999)
Saracco G, Badini C, Specchia V, Chem. Eng. Sci., 54, 3041 (1999)
Saracco G, Serra V, Badini C, Specchia V, Ind. Eng. Chem. Res., 36(6), 2051 (1997)
Schlesinger D, "Concept in Inhalation Toxicology," McClellan, R.O., Henderson, R.F., eds., Hemisphere Publishing Corp., New York, NY, 163 (1989)
Serra V, Saracco G, Badini C, Specchia V, Appl. Catal. B: Environ., 11(3-4), 329 (1997)
van Gulijk C, Heiszwolf JJ, Makkee M, Moulijn JA, Chem. Eng. Sci., 56(4), 1705 (2001)
Watabe Y, Yrako K, Miyajimo T, Yoshimoto T, Murakami Y, "Trapless' Trap - A Catalytic Combustion System of Diesel Particulates Using Ceramic Foam," SAE Paper Nr. 830082 (1983)
