Effects of additives Co, La, and Mn for Pt-based carbon oxidation catalysts

Byungchul Choi

Journal of Industrial and Engineering Chemistry, Vol.14, No.4, 499-504, July, 2008

DOI10.1016/j.jiec.2008.01.017 Export Citation

Effects of additives Co, La, and Mn for Pt-based carbon oxidation catalysts

Byungchul Choi^†

School of Mechanical Systems Engineering, Chonnam National University, Gwangju 500-757, South Korea

E-mail:

Catalyzed diesel particulate filter (CDPF) systems are viewed as the next generation after-treatment system for the diesel vehicle. The CDPF was coated with Pt catalyst to regenerate particulate matters (PM) continuously. This study was conducted to investigate the PM oxidation catalyst for the CDPF system. The promotional effects of additives Co, La, and Mn for Pt-based carbon oxidation catalysts are investigated by a model gas test. The order of temperature that CO formation happens sharply was Mn < Pt < Pt2 < La < Co, from low temperature to high temperature order. The additive Mn was able to decrease carbon oxidation temperature by 10 8C more than the Pt-only catalyst. The additive Mn has the advantage of generating CO, and it may have the possibility of NOx reduction. Coexistence of both C3H8 and carbon in CDPF (catalyzed DPF) may be helpful to activate the rate of carbon oxidation over the catalyst sites.

Keywords:Particulate matters (PM);Catalyzed diesel particulate filter (CDPF);Platinum;Manganese

[References]

Choi BC, Technologies for Emission After-treatment, Baro Press Co., Korea, 2001, P. 351
Choi BC, Foster DE, J. Ind. Eng. Chem., 11(1), 1 (2005)
Choi BC, Yoon YB, Kang HY, Lim MT, Int. J. Autom. Technol., 7, 5 (2005)
Kang HY, Choi BC, Son GS, Foster DE, JSME Int. J. B, 49, 419 (2006)
Hoard J, SAE Paper No. 2001-01-0185, 2001
Son GS, Ko SH, Lee KY, Int. J. Autom. Technol. 1.2 (2000) 89
Yuuki K, Ito T, Sakamoto H, Matsubara R, Hashimoto S, Hamanaka T, SAE Paper No. 2003-01-0383, 2003
Oi-Uchisawa J, Obuchi A, Wang S, Nanba T, Ohi A, Appl. Catal. B: Environ., 43(2), 117 (2003)
Twigg MV, Appl. Catal. B: Environ., 70(1-4), 2 (2007)
Choi BC, Foster DE, J. Mech. Sci. Technol., 20, 1 (2006)
Kim SS, Lee H, Song HK, Na BK, J. Ind. Eng. Chem., 12(4), 558 (2006)
Park SH, Kim BH, Selvaraj M, Lee TG, J. Ind. Eng. Chem., 13(4), 637 (2007)
Hinot K, Burtscher H, Weber AP, Kasper G, Appl. Catal. B: Environ., 71(3-4), 271 (2007)
Gluhoi AC, Bogdanchikova N, Nieuwenhuys BE, Catal. Today, 113(3-4), 178 (2006)
Corro G, Fierro JLG, Vazquez O, Catal. Commun., 7, 436 (2006)
Allansson R, Blakeman PG, Cooper BJ, SAE Paper No. 2002-01-0428, 2002
Jeguirim M, Tschamber V, Ehrburger P, Appl. Catal. B: Environ., 76(3-4), 235 (2007)

[Referenced By]

[1] Choi BC, Technologies for Emission After-treatment, Baro Press Co., Korea, 2001, P. 351

[2] Choi BC, Foster DE, J. Ind. Eng. Chem., 11(1), 1 (2005)

[3] Choi BC, Yoon YB, Kang HY, Lim MT, Int. J. Autom. Technol., 7, 5 (2005)

[4] Kang HY, Choi BC, Son GS, Foster DE, JSME Int. J. B, 49, 419 (2006)

[5] Hoard J, SAE Paper No. 2001-01-0185, 2001

[6] Son GS, Ko SH, Lee KY, Int. J. Autom. Technol. 1.2 (2000) 89

[7] Yuuki K, Ito T, Sakamoto H, Matsubara R, Hashimoto S, Hamanaka T, SAE Paper No. 2003-01-0383, 2003

[8] Oi-Uchisawa J, Obuchi A, Wang S, Nanba T, Ohi A, Appl. Catal. B: Environ., 43(2), 117 (2003)

[9] Twigg MV, Appl. Catal. B: Environ., 70(1-4), 2 (2007)

[10] Choi BC, Foster DE, J. Mech. Sci. Technol., 20, 1 (2006)

[11] Kim SS, Lee H, Song HK, Na BK, J. Ind. Eng. Chem., 12(4), 558 (2006)

[12] Park SH, Kim BH, Selvaraj M, Lee TG, J. Ind. Eng. Chem., 13(4), 637 (2007)

[13] Hinot K, Burtscher H, Weber AP, Kasper G, Appl. Catal. B: Environ., 71(3-4), 271 (2007)

[14] Gluhoi AC, Bogdanchikova N, Nieuwenhuys BE, Catal. Today, 113(3-4), 178 (2006)

[15] Corro G, Fierro JLG, Vazquez O, Catal. Commun., 7, 436 (2006)

[16] Allansson R, Blakeman PG, Cooper BJ, SAE Paper No. 2002-01-0428, 2002

[17] Jeguirim M, Tschamber V, Ehrburger P, Appl. Catal. B: Environ., 76(3-4), 235 (2007)