Guangjian WANG, Liancheng BING, Zhijian YANG, Jiankang ZHANG

Selective catalytic reduction of sulfur dioxide by carbon monoxide over iron oxide supported on activated carbon

The selective reduction of sulfur dioxide with carbon monoxide to elemental sulfur was studied over AC-supported transition-metal oxide catalysts. According to the study, Fe2O3/AC was the most active catalyst among the 4 AC-supported catalysts tested. By using Fe2O3/AC, the best catalyst, when the feed conditions were properly optimized (CO/SO2 molar ratio = 2:1; sulfidation temperature, 400 °C; Fe content, 20 wt%; GHSV = 7000 mL g-1 h-1), 95.43% sulfur dioxide conversion and 86.59% sulfur yield were obtained at the temperature of 350 °C. Catalyst samples were characterized by X-ray powder diffraction in order to relate the phase composition to the activation behavior and catalytic performance. The active phase of catalyst was detected as FeS2, and the formation of FeS2 was greatly dependent on the sulfidation temperature.

Anahtar Kelimeler:

Sulfur dioxide, carbon monoxide, activated carbon, transition-metal oxide, selective catalytic

Selective catalytic reduction of sulfur dioxide by carbon monoxide over iron oxide supported on activated carbon

Keywords:

Sulfur dioxide, carbon monoxide, activated carbon, transition-metal oxide, selective catalytic,

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Han, G. B.; Park, N. K.; Yoon, S. H.; Lee, T. J. Ind. Eng. Chem. Res. 2008, 47, 1427–1434.
Kadio˘ glu, Y. Y.; Karaca, S. Turk. J. Chem. 1998, 22, 129–136.
Lee, H. M.; Han, J. D. Ind. Eng. Chem. Res. 2002, 41, 2623–2629.
Wang, X.; Wang, A.; Li, N.; Wang, X.; Liu, Z.; Zhang, T. Ind. Eng. Chem. Res. 2006, 45, 4582–4588.
Tseng, H.; Wey M.; Fu, C. Carbon 2003, 41, 139–149.
Li, K.; Ling, L.; Lu, C.; Qiao, W.; Liu, Z.; Liu, L.; Mochida, I. Carbon 2001, 39, 1803–1808.
Kopa¸ c, T.; Kocaba¸s, S. Chem. Eng. Commun. 2003, 190, 1041–1054.
Yu, J.; Yu, Q.; Jin, Y.; Chang, S. Ind. Eng. Chem. Res. 1997, 36, 2128–2133.
Paik, S. C.; Chung, J. S. Appl. Catal., B Environ. 1995, 5, 233–243.
Liu, W.; Wadia, C.; Flytzani-Stephanopoulos, M. Catal. Today 1996, 28, 391–403.
Wang, C.; Lin, S.; Hwang, W.; Weng, H. Ind. Eng. Chem. Res. 2002, 41, 666–671.
Chen, C.; Wang, C.; Weng, H. Chemosphere 2004, 56, 425–431.
Paik, S. C.; Chung, J. S. Appl. Catal., B Environ. 1996, 8, 267–279.
Zhuang, S. X.; Magara, H.; Yamazaki, M.; Takahashi, Y.; Yamad, M. Appl. Catal., B Environ. 2000, 24, 89–96. Zhu, T.; Dreher1, A.; Flytzani-Stephanopoulos, M. Appl. Catal., B Environ. 1999, 21, 103–120.
Klinzing, G. E.; Walker, R. J. Fuel 1984, 63, 1450–1454.
Bejarano, C. A.; Jia, C. Q. Environ. Sci. Technol. 2001, 35, 800–804.
Khalafalla, S. E.; Haas, L. A. J. Catal., 1972, 24, 121–129.
Han, G. B.; Park, N.; Yoon, S. H.; Lee, T. J.; Yoon, K. J. Appl. Catal., A. Gen. 2008, 337, 29–38.
Kim, H.; Park, D. W.; Woo, H. C.; Chung, J. S. Appl. Catal., B Environ. 1998, 19, 233–243.
Jia, L.; Qin, Y.; Ma, Z. Chin. J. Catal., 2003, 24, 751–754.
Hebert, D. B. Catal., Rev. 1992, 34, 391–408.
Hebert, D. B. Appl. Catal., 1988, 41, 289–299.
Paik, S. C.; Kim, H.; Chung, J. S. Catal., Today 1997, 38, 193–198.
Shukla, P. R.; Wang, S. B.; Sun, H. Q..; Ang, M.; Tad´ e, M. Appl. Catal., B Environ. 2010, 100, 529–534.
Sun, W.; Hsu, A.; Chen, R. R. J. Power Sources 2011, 196, 627–635.
Edwards, J. K.; Pritchard, J.; Piccinini, M.; Shaw, G.; He, Q.; Carley, A. F.; Kiely, C. J.; Hutchings, G. J. J. Catal., 2012, 292, 227–238.
Liu, S. J.; Liu, Z. Y.; Zhu, Z. P.; Niu, H. X.; Hu, T. D.; Xie, Y. N.; Liu, T. Chin. J. Environ. Sci. 2000, 21, 12–17. Tseng, H. H.; Wey, M. Y. Carbon 2004, 42, 2269–2278.
Zhu, Z. P.; Liu, Z. Y.; Liu, S. J.; Niu, H. X. Appl. Catal., B Environ. 1999, 23, L229–L233.
Liu, S.; Liu, Z.; Zhu, Z.; Niu, H. Environ. Chem. 1999, 18, 519–524.