Colloidal Silica의 특성이 SCR 촉매의 성능 및 열적 안정성에 미치는 영향

차진선; 이형원; 신민철; 정보라; 김홍대; Jin-Sun Cha; Hyung Won Lee; Min-Chul Shin; Bora Jeong; Hong-Dae Kim

Applied Chemistry for Engineering, Vol.31, No.1, 61-66, February, 2020

DOI10.14478/ace.2019.1108 Export Citation

Colloidal Silica의 특성이 SCR 촉매의 성능 및 열적 안정성에 미치는 영향

Effect of Colloidal Silica on Selective Catalytic Reduction (SCR) Catalyst Activity and Thermal Stability

차진선^†, 이형원¹, 신민철, 정보라², 김홍대²

한국산업기술시험원 재료기술센터
¹국립산림과학원 목재화학연구과
²한국생산기술연구원 울산지역본부 친환경재료공정그룹

Jin-Sun Cha^†, Hyung Won Lee¹, Min-Chul Shin, Bora Jeong², and Hong-Dae Kim²

Material Technology Center, Korea Testing Laboratory, 10 Chungui-ro Jinju-si, Gyeongsangnam-do 52852, Korea
¹Wood Chemistry Division, Forest Products Department, National Institute of Forest Science, Seoul 02455, Korea
²Green Materials & Processes Group, Ulsan Regional Division, Korea Institute of Industrial Technology, 55, Jongga-ro, Jung-gu, Ulsan 44413, Korea

E-mail:

초록

본 연구에서는 압착ㆍ코팅방식 촉매 제조 공정에 첨가제로 사용되는 콜로이드 실리카의 특성이 제조된 촉매의 성능 및 열적 안정성에 미치는 영향을 연구하였다. 이를 위해 4종의 콜로이드 실리카를 대상으로 실리카 형상 및 크기, 비표면적 및 기공특성, 성분 등을 분석하였으며 해당 콜로이드 실리카를 적용하여 제조한 V2O5/TiO2 촉매의 특성 평가 및 NOx 전환율에 대한 연구를 수행하였다. 콜로이드 실리카를 이용하여 제조한 촉매의 특성은 적용한 콜로이드 실리카의 특성에 따라 달라지며, 특히 콜로이드 실리카 내 피독물질 함량은 촉매 성능에 직접적인 영향인자인 것으로 분석되었다. 또한 콜로이드 실리카 내 실리카 함량이 높을수록 촉매의 열안정성과 성능이 향상되는 것으로 나타났다.

In this study, the effect of characteristics of colloidal silica, which was used as an additive in the compression/coating catalyst process, on activities and thermal stabilities of the catalysts was investigated. The shape, size, specific surface area and porosity, and composition of four different types of colloidal silica materials were analyzed, and the NOx conversion of V2O5/TiO2 catalyst prepared by these colloidal silica were studied. Properties of the catalysts prepared by colloidal silica depend on the nature of the colloidal silica used, in particular the alkaline substances such as Na in the silica were evaluated to be directly effect on the deNOx conversion of the catalyst. In addition, higher silica contents in the colloidal silica were found to improve the deNOx activity and thermal stability of the catalyst.

Keywords:Colloidal silica;deNOx;SCR;V2O5/TiO2;Thermal stability

[References]

Liu Z, Han J, Zhao L, Wu YW, Wang HX, Pei XQ, Xu MX, Lu Q, Yang YP, Appl. Catal. A: Gen., 587(1-9), 117263 (2019)
Chen L, Li JH, Ge MF, Chem. Eng. J., 170(2-3), 531 (2011)
Gao F, Tang X, Yi H, Zhao S, Li C, Li J, Shi Y, Meng X, Catalysts, 7(1-32), 199 (2017)
Chen L, Agrawal V, Tait SL, Catal. Sci. Tech., 9(8), 1802 (2019)
Forzatti P, Nova I, Tronconi E, Kustov A, Thogersen JR, Catal. Today, 184(1), 153 (2012)
Cha JS, Choi JC, Ko JH, Park YK, Park SH, Jeong KE, Kim SS, Jeon JK, Chem. Eng. J., 156(2), 321 (2010)
Chen HF, Xia Y, Fang RY, Huang H, Gan YP, Liang C, Zhang J, Zhang WK, Liu XS, Appl. Surf. Sci., 459, 639 (2018)
Su S, Feng S, Zhao Y, Lu Q, Cheng W, Dong C, Appl. Mech. Mater., 130-134, 418 (2012)
Heck RM, Catal. Today, 53(4), 519 (1999)
Tronconi E, Groppi G, Chem. Eng. Sci., 55(24), 6021 (2000)
Liu GZ, Guo JH, Meng FX, Zhang XW, Wang L, Chin. J. Chem. Eng., 22(8), 875 (2014)
Mitra B, Kunzru D, J. Am. Ceram. Soc., 91(1), 64 (2008)
Vargas MAL, Casanova M, Trovarelli A, Busca G, Appl. Catal. B: Environ., 75(3-4), 303 (2007)
Pan Y, Zhao W, Zhong Q, Cai W, Li H, J. Environ. Sci., 25, 1703 (2013)
Cha JS, Park JW, Jeong BR, Kim HD, Park SS, Shin MC, Appl. Chem. Eng., 28(5), 576 (2017)
Liu X, Wu X, Xu T, Weng D, Si Z, Ran R, Chin. J. Catal., 37, 1340 (2016)
Kobayashi M, Kuma R, Masaki S, Sugishima N, Appl. Catal. B: Environ., 60(3-4), 173 (2005)

[1] Liu Z, Han J, Zhao L, Wu YW, Wang HX, Pei XQ, Xu MX, Lu Q, Yang YP, Appl. Catal. A: Gen., 587(1-9), 117263 (2019)

[2] Chen L, Li JH, Ge MF, Chem. Eng. J., 170(2-3), 531 (2011)

[3] Gao F, Tang X, Yi H, Zhao S, Li C, Li J, Shi Y, Meng X, Catalysts, 7(1-32), 199 (2017)

[4] Chen L, Agrawal V, Tait SL, Catal. Sci. Tech., 9(8), 1802 (2019)

[5] Forzatti P, Nova I, Tronconi E, Kustov A, Thogersen JR, Catal. Today, 184(1), 153 (2012)

[6] Cha JS, Choi JC, Ko JH, Park YK, Park SH, Jeong KE, Kim SS, Jeon JK, Chem. Eng. J., 156(2), 321 (2010)

[7] Chen HF, Xia Y, Fang RY, Huang H, Gan YP, Liang C, Zhang J, Zhang WK, Liu XS, Appl. Surf. Sci., 459, 639 (2018)

[8] Su S, Feng S, Zhao Y, Lu Q, Cheng W, Dong C, Appl. Mech. Mater., 130-134, 418 (2012)

[9] Heck RM, Catal. Today, 53(4), 519 (1999)

[10] Tronconi E, Groppi G, Chem. Eng. Sci., 55(24), 6021 (2000)

[11] Liu GZ, Guo JH, Meng FX, Zhang XW, Wang L, Chin. J. Chem. Eng., 22(8), 875 (2014)

[12] Mitra B, Kunzru D, J. Am. Ceram. Soc., 91(1), 64 (2008)

[13] Vargas MAL, Casanova M, Trovarelli A, Busca G, Appl. Catal. B: Environ., 75(3-4), 303 (2007)

[14] Pan Y, Zhao W, Zhong Q, Cai W, Li H, J. Environ. Sci., 25, 1703 (2013)

[15] Cha JS, Park JW, Jeong BR, Kim HD, Park SS, Shin MC, Appl. Chem. Eng., 28(5), 576 (2017)

[16] Liu X, Wu X, Xu T, Weng D, Si Z, Ran R, Chin. J. Catal., 37, 1340 (2016)

[17] Kobayashi M, Kuma R, Masaki S, Sugishima N, Appl. Catal. B: Environ., 60(3-4), 173 (2005)