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Received August 26, 2006
Accepted December 18, 2006
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Deactivation of Pt/wire-mesh and vanadia/monolith catalysts applied in selective catalytic reduction of NOx in flue gas
Department of Chemical Engineering, Amirkabir University of Technology, Tehran, Iran 1School of Biosciences and Process Technology, Bioenergy Technology, V"axj"o University, SE-351 95 V"axj"o, Sweden
sohrabi@aut.ac.ir
Korean Journal of Chemical Engineering, July 2007, 24(4), 583-587(5), 10.1007/s11814-007-0006-x
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Abstract
In this study the deactivation of Pt/wire mesh and vanadia/monolith catalysts by aerosol particles of some inorganic salts (K2SO4, KCl and ZnCl2) with high or low melting points has been investigated. The aerosol particles may either diffuse within the matrix of the catalysts and block the mezzo and micro pores, or deposit on the outer surface of the catalysts and form a porous layer causing a mass transfer resistance that ultimately deactivates the catalysts. It has been observed that in both Pt/wire mesh and vanadia/monolith catalysts the deactivation effect of ZnCl2 was more pronounced compared to other salts. As an example, after 31 hours of exposure to ZnCl2, 10% of the catalysts activities was lost. This may be related to the ZnCl2 lower melting point in comparison with other poisons. These results are in agreement with the previous findings for deactivation of wire-mesh catalysts used for oxidation of volatile organic compounds (VOC) and CO by exposing the catalysts to the aerosols generated from inorganic salts.
References
Medros FG, Eldridge JW, Kittrel JR, Ind. Eng. Chem. Res., 28, 1171 (1989)
Bosch H, Janssen F, Catal. Today, 2, 342 (1987)
Bosch H, Janssen F, Catal. Today, 2, 369 (1989)
Lietti L, Forzatti P, Heter. Chem. Rev., 3, 33 (1996)
Forzatti P, Nova I, Beretta A, Catal. Today, 56(4), 431 (2000)
Bell A, Manzer LE, Chem. Eng. Prog., 91(2) (1995)
Lee HT, Rhee HK, Korean J. Chem. Eng., 19(4), 574 (2002)
Seo HK, Oh JW, Lee SC, Sung JY, Choung SJ, Korean J. Chem. Eng., 18(5), 698 (2001)
Chen JP, Buzanowski MA, Yang RT, Cichanowisz JE, J. Air Waste Manage. Assoc., 40, 1403 (1990)
Beekman JW, Hegedus LL, Ind. Eng. Chem. Res., 30, 969 (1991)
Cybulski A, Moulijn JA, Catal. Rev.-Sci. Eng., 36(2), 179 (1994)
Ozkan G, Dogu G, Ind. Eng. Chem. Res., 36(11), 4734 (1997)
Kong SJ, Jun JH, Yoon KJ, Korean J. Chem. Eng., 21(4), 793 (2004)
Khodayari R, Odenbrand CUI, Chem. Eng. Sci., 54(12), 1775 (1999)
Chen JP, Yang RT, J. Catal., 125, 411 (1990)
Babcock Hitachi Company, Commercial Information (1990)
Suikannen K, PhD Thesis, Dept. of Chem. Eng., Lapperanta University of Technology (1990)
Srihiranpullop S, Praserthdam P, Mongkhonsi T, Korean J. Chem. Eng., 17(5), 548 (2000)
Khodayari R, Odenbrand CUI, Ind. Eng. Chem. Res., 37(4), 1196 (1998)
Pagels J, Strand M, Gudmundsson A, Szpila A, Rissler J, Swietlicki E, Sanati M, Bohgard M, Proceedings of the european aerosol conference, Leipzig, September 3-7 (2001)
Christensen KA, PhD Thesis, University of Copenhagen, Denmark (1995)
Valmari T, Kauppinen EI, Kurkela J, Jokiniemi JK, Sfiris G, Revitzer H, J. Aerosol Sci., 29(4), 445 (1998)
Kauppinen EI, Pakkanen TA, Environ. Sci. Technol., 24, 1811 (1990)
Hegedus LL, Ind. Eng. Chem. Fundam., 13, 3 (1974)
Berg M, Hargitai T, Brandin J, Berg N, Progress in thermochemical biomass conversion, Bridgewater, A.V., editor, Blackwell Scientific Publications, UK (2001)
Moradi F, PhD Thesis, Amirkabir University of Technology, Tehran, Iran (2003)
Bosch H, Janssen F, Catal. Today, 2, 342 (1987)
Bosch H, Janssen F, Catal. Today, 2, 369 (1989)
Lietti L, Forzatti P, Heter. Chem. Rev., 3, 33 (1996)
Forzatti P, Nova I, Beretta A, Catal. Today, 56(4), 431 (2000)
Bell A, Manzer LE, Chem. Eng. Prog., 91(2) (1995)
Lee HT, Rhee HK, Korean J. Chem. Eng., 19(4), 574 (2002)
Seo HK, Oh JW, Lee SC, Sung JY, Choung SJ, Korean J. Chem. Eng., 18(5), 698 (2001)
Chen JP, Buzanowski MA, Yang RT, Cichanowisz JE, J. Air Waste Manage. Assoc., 40, 1403 (1990)
Beekman JW, Hegedus LL, Ind. Eng. Chem. Res., 30, 969 (1991)
Cybulski A, Moulijn JA, Catal. Rev.-Sci. Eng., 36(2), 179 (1994)
Ozkan G, Dogu G, Ind. Eng. Chem. Res., 36(11), 4734 (1997)
Kong SJ, Jun JH, Yoon KJ, Korean J. Chem. Eng., 21(4), 793 (2004)
Khodayari R, Odenbrand CUI, Chem. Eng. Sci., 54(12), 1775 (1999)
Chen JP, Yang RT, J. Catal., 125, 411 (1990)
Babcock Hitachi Company, Commercial Information (1990)
Suikannen K, PhD Thesis, Dept. of Chem. Eng., Lapperanta University of Technology (1990)
Srihiranpullop S, Praserthdam P, Mongkhonsi T, Korean J. Chem. Eng., 17(5), 548 (2000)
Khodayari R, Odenbrand CUI, Ind. Eng. Chem. Res., 37(4), 1196 (1998)
Pagels J, Strand M, Gudmundsson A, Szpila A, Rissler J, Swietlicki E, Sanati M, Bohgard M, Proceedings of the european aerosol conference, Leipzig, September 3-7 (2001)
Christensen KA, PhD Thesis, University of Copenhagen, Denmark (1995)
Valmari T, Kauppinen EI, Kurkela J, Jokiniemi JK, Sfiris G, Revitzer H, J. Aerosol Sci., 29(4), 445 (1998)
Kauppinen EI, Pakkanen TA, Environ. Sci. Technol., 24, 1811 (1990)
Hegedus LL, Ind. Eng. Chem. Fundam., 13, 3 (1974)
Berg M, Hargitai T, Brandin J, Berg N, Progress in thermochemical biomass conversion, Bridgewater, A.V., editor, Blackwell Scientific Publications, UK (2001)
Moradi F, PhD Thesis, Amirkabir University of Technology, Tehran, Iran (2003)
