Abstract
To understand the role of regeneration conditions on sulfur-poisoned Cu/SSZ-13 catalysts for NH3-SCR, the physicochemical characterizations and NO2 conversions were investigated. The sulfur-poisoned Cu/SSZ-13 catalysts were treated at different conditions as a function of temperature and duration. TGA results revealed that regeneration at 500 °C only removed parts of sulfur spices and at 700 °C can completely remove all sulfur spices. The physical structural characterizations results illustrate that regeneration below 700 °C has no significant impact on CHA structure for Cu/SSZ-13 catalysts, while dealumination occurs on poisoned Cu/SSZ-13 when regeneration temperature is higher than 700 °C. EPR and H2-TPR results show that the sulfate decomposition and Cu migration reactions involved during regeneration and, as a result, the content of Cu2+ gradually increased as the extent of regeneration increased. The kinetics tests support that NOx conversion recovery is related to the content of Cu2+ increase during regeneration. Our study reveals that the optimum regeneration temperature is 700 °C, because severe dealumination at 750 °C inhibited Cu2+ amount increase.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
T. Johnson, SAE Int. Engines., 6, 699 (2013).
P. Forzatti, I. Nova and E. Tronconi, Angew. Chem. Int. Ed., 48, 8366 (2009).
J. H. Kwak, R. G. Tonkyn, D. H. Kim, J. Szanyi and C. H. F. Peden, J. Catal, 275, 187 (2010).
A. M. Beale, F. Gao, I. Lezcano-Gonzalez, C. H. F. Peden and J. Szanyi, Chem. Soc. Rev, 44, 7371 (2015).
R. Xu, R. Zhang, N. Liu, B. Chen and S. Z. Qiao, ChemCatChem., 7, 3842 (2016).
L. Xie, F. Liu, X. Shi, F.-S. Xiao and H. He, Appl. Catal. B., 179, 206 (2015).
T. Zhang, F. Qiu, H. Chang, X. Li and J. Li, Catal Sci. Technol, 6, 6294 (2016).
W. Su, Z. Li, Y. Peng and J. Li, Phys. Chem. Chem. Phys., 17, 29142 (2015).
A. M. Beale, I. Lezcano-Gonzalez, W. A. Slawinksi and D. S. Wragg, Chem. Commun., 52, 6170 (2016).
Z. Chen, C. Fan, L. Pang, S. Ming, P. Liu and T. Li, Appl. Catal. B., 237, 116 (2018).
S. Dahlin, C. Lantto, J. Englund, B. Westerberg, F. Regali, M. Skoglundh and Lars J. Pettersson, Catal. Today, 320, 72 (2019).
W. Su, Z. Li, Y. Zhang, C. Meng and J. Li, Catal. Sci. Technol, 7, 1523 (2017).
P. S. HammershfM, Y. Jangjou, W. S. Epling, A. D. Jensen and T. V. W. Janssens, Appl. Catal. B., 226, 38 (2018).
Y. Jangjou, Q. Do, Y. Gu, L.-G. Lim, H. Sun, D. Wang, A. Kumar, J. Li, L. C. Grabow and W. S. Epling, ACS Catal, 8, 1325 (2018).
P.S. Hammershøi, A.D. Jensen and T.V.W Janssens, Appl. Catal. B., 238, 104 (2018).
C. Wang, J. Wang, J. Wang, T. Yu, M. Shen, W. Wang and W. Li, Appl. Catal. B., 204, 239 (2017).
M. Shen, X. Li, J. Wang, C. Wang and J. Wang, Ind. Eng Chem. Res., 57, 3501 (2018).
J. Luo, F. Gao, K. Kamasamudram, N. Currier, C. H. F. Peden and A. Yezerets, J. Catal., 348, 291 (2017).
M. M. J. Treacy and J. B. Higgins, in Collection of simulated xrd powder patterns for zeolites (fifth edition), Treacy, M. M. J. and Higgins, J. B. Eds., Elsevier Science B.V, Amsterdam (2007).
H. Yu, L. Cheng, J. Yin, S. Yan, K. Liu, F. Zhang, B. Xu and L. Li, Food Sci. Nutr, 1, 273 (2013).
C. Peng, J. Liang, H. Peng, R. Yan, W. Liu, Z. Wang, P. Wu and X. Wang, Ind. Eng. Chem. Res., 57, 14967 (2018).
F. Gao, E. D. Walter, N. M. Washton, J. Szanyi and C. H. F. Peden, ACS Catal, 3, 2083 (2013).
E. Borfecchia, P. Beato, S. Svelle, U. Olsbye, C. Lamberti and S. Bordiga, Chem. Soc. Rev., 47, 8097 (2018).
F. Gao, Y. Wang, N. M. Washton, M. Koflar, J. Szanyi and C. H. F. Peden, ACS Catal, 5, 6780 (2015).
J. Luo, D. Wang, A. Kumar, J. Li, K. Kamasamudram, N. Currier and A. Yezerets, Catal. Today, 267, 3 (2016).
J. H. Kwak, H. Zhu, J. H. Lee, C. H. F. Peden and J. Szanyi, Chem. Commun., 48, 4758 (2012).
M. Shen, Y. Zhang, J. Wang, C. Wang and J. Wang, J. Catal, 358, 277 (2018).
J. H. Kwak, D. Tran, S. D. Burton, J. Szanyi, J. H. Lee and C. H. F. Peden, J. Catal., 287, 203 (2012).
S. J. Schmieg, S. H. Oh, C. H. Kim, D. B. Brown, J. H. Lee, C. H. F. Peden and D. H. Kim, Catal. Today, 184, 252 (2012).
Y. J. Kim, J. K. Lee, K. M. Min, S. B. Hong, I.-S. Nam and B. K. Cho, J. Catal, 311, 447 (2014).
K. Wjayanti, K. Xie, A. Kumar, K. Kamasamudram and L. Olsson, Appl. Catal. B., 219, 142 (2017).
D. Wang, F. Gao, C. H. F. Peden, J. Li, K. Kamasamudram and W. S. Epling, ChemCatChem., 6, 1579 (2014).
L. Ma, Y. Cheng, G. Cavataio, R. W. McCabe, L. Fu and J. Li, Chem. Eng. J., 225, 323 (2013).
C. Wang, J. Wang, J. Wang, Z. Wang, Z. Chen, X. Li, M. Shen, W. Yan and X. Kang, Catal, 8, 593 (2018).
Acknowledgements
The authors are grateful for the financial support from the National Key Research and Development program (2017YFC 0211302), National Natural Science Foundation of China (No. 21676195), the Science Fund of State Key Laboratory of Engine Reliability (skler-201714).
Author information
Authors and Affiliations
Corresponding authors
Electronic supplementary material
Rights and permissions
About this article
Cite this article
Shen, M., Wang, Z., Li, X. et al. Effects of regeneration conditions on sulfated CuSSZ-13 catalyst for NH3-SCR. Korean J. Chem. Eng. 36, 1249–1257 (2019). https://doi.org/10.1007/s11814-019-0307-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11814-019-0307-x