Availability of NH3 adsorption in vanadium-based SCR for reducing NOx emission and NH3 slip

Ahyun Ko; Youngmin Woo; Jinyoung Jang; Yongjin Jung; Youngdug Pyo; Hyun Jo; Ocktaeck Lim; Young Jae Lee

Journal of Industrial and Engineering Chemistry, Vol.78, 433-439, October, 2019

DOI10.1016/j.jiec.2019.05.024 Export Citation

Availability of NH3 adsorption in vanadium-based SCR for reducing NOx emission and NH3 slip

Ahyun Ko, Youngmin Woo, Jinyoung Jang, Yongjin Jung, Youngdug Pyo, Hyun Jo¹, Ocktaeck Lim¹, and Young Jae Lee^{2, †}

Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
¹School of Mechanical Engineering, University of Ulsan, 93 Daehack-ro, Nam-gu, Ulsan 44610, Republic of Korea
²Center for Environmentally Friendly Vehicle, 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea

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This study was carried out to analyze the amount of NH3 adsorption by selective catalytic reduction using various methods for the development of an optimized urea injection control logic. The maximum adsorbable amount, available adsorption amount for NOx reduction, and maximum adsorption amount before NH3 slip were separately measured. The results of the three types of adsorption amounts show that the optimum operating range for urea control gradually narrowed for high exhaust gas temperatures. Furthermore, it was found to be particularly challenging to completely remove NH3 slip without ammonia oxidation catalyst in the transient operation of the engine

Keywords:Nitrogen oxides (NOx);Urea-SCR;NH3adsorption;NH3slip

[References]

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[Referenced By]

[1] Ghosh R, Joad J, Benes I, Dostal M, Sram RJ, Hertz-Picciotto I, Environ. Int., 39 (2012)

[2] Jiang B, Xia D, Atmos. Environ., 163 (2017)

[3] Li K, Chen L, White SJ, Yu H, Wu X, Gao X, Azzi M, Cen K, Sci. Total Environ., 619-620, 927 (2018)

[4] Zhu B, Han Y, Wang C, Huang X, Xia S, Niu Y, Yin Z, He L, J. Environ. Sci., 75 (2019)

[5] Forzatti P, Lietti L, Nova I, Tronconi E, Catal. Today, 151 (2010)

[6] You R, Meng M, Zhang J, Zheng L, Hu T, Li X, Catal. Today, 327, 347 (2018)

[7] Kang W, Choi B, Jung S, Park S, Energy, 143, 439 (2018)

[8] Myung CL, Jang W, Kwon S, Ko J, Jin D, Park S, Energy, 132, 356 (2017)

[9] Ko J, Jin D, Jang W, Myung CL, Kwon S, Park S, Appl. Energy, 187 (2017)

[10] Cha J, Lee J, Chon MS, Atmos. Environ., 196 (2019)

[11] Squaiella LLF, Martins CA, Lacava PT, Fuel, 104, 183 (2013)

[12] Cho CP, Pyo YD, Jang JY, Kim GC, Shin YJ, Appl. Therm. Eng., 110 (2017)

[13] Jung Y, Shin YJ, Pyo YD, Cho CP, Jang J, Kim G, Chem. Eng. J., 326, 853 (2017)

[14] Lee K, Kosaka H, Sato S, Yokoi T, Choi B, Kim D, J. Ind. Eng. Chem., 72 (2018)

[15] Sun M, Feng X, Xu B, Li Y, Gong M, Xu H, Chen Y, Cao Y, J. Ind. Eng. Chem., 36, 334 (2016)

[16] Xu L, Niu S, Wang D, Lu C, Zhang Q, Zhang K, Li J, J. Ind. Eng. Chem., 63, 391 (2018)

[17] Shen B, Wang F, Zhao B, Li Y, Wang Y, J. Ind. Eng. Chem., 33, 262 (2016)

[18] Colombo M, Koltsakis G, Nova I, Tronconi E, Catal. Today, 188 (2012)

[19] Colombo M, Nova I, Tronconi E, Catal. Today, 197 (2012)

[20] Feng T, Lu L, J. Ind. Eng. Chem., 28, 97 (2015)

[21] Horne JR, Zhu S, Montoya-Aguilera J, Hinks ML, Wingen LM, Nizkorodov SA, Dabdub D, Atmos. Environ., 189 (2018)

[22] Nova I, Ciardelli C, Tronconi E, Chatterjee D, Bandl-Konrad B, Catal. Today, 114(1), 3 (2006)

[23] Grossale A, Nova I, Tronconi E, J. Catal., 265(2), 141 (2009)

[24] Colombo M, Nova I, Tronconi E, Catal. Today, 151 (2010)

[25] Kamasamudram K, Currier NW, Chen X, Yezerets A, Catal. Today, 151 (2010)

[26] Liu G, Bao W, Zhang W, Shen D, Wang Q, Li C, Luo KH, J. Energy Inst. (2018).

[27] Hsieh MF, Wang J, Control Eng. Pract., 19(4), 409 (2011)

[28] Zhao J, Chen Z, Hu Y, Chen H, IFAC-PapersOnLine, 28(8), 367 (2015)

[29] Tronconi E, Weibel M, Ecke K, Nova I, Chatterjee D, Ciardelli C, Konrad B, Chem. Eng. Sci., 59(22-23), 5301 (2004)

[30] Schuler A, Votsmeier M, Kiwic P, Gieshoff J, Hautpmann W, Drochner A, Vogel H, Chem. Eng. J., 154(1-3), 333 (2009)

[31] Olsson L, Wijayanti K, Leistner K, Kumar A, Joshi SY, Kamasamudram K, Currier NW, Yezerets A, Appl. Catal. B: Environ., 174-175, 212 (2015)

[32] Millo F, Rafigh M, Fino D, Miceli P, Fuel, 198, 183 (2017)

[33] Olsson L, Sjovall H, Blint RJ, Appl. Catal. B: Environ., 87(3-4), 200 (2009)

[34] Koebel M, Elsener M, Kleemann M, Catal. Today, 59 (2000)