Korean Journal of Chemical Engineering, Vol.22, No.6, 889-893, November, 2005
A Study of Desulfurization Ability and Activation Energy for CuO-AgO Sorbents
E-mail:
In this study, we investigated desulfurization abilities and activation energy using TGA for CuO-AgO sorbents calcined at 700 ℃. CuO was used as a main active material and AgO was used as an additive material and 25 wt% SiO2 was used as a support material. The desulfurization reaction temperatures were 450 ℃, 500 ℃, and 550 ℃ and the regeneration reaction temperature was 700 ℃. From the TGA experiments, the best sulfur loading of CAS1 sorbent containing 1 wt% AgO was about 14.95 g sulfur/100 g sorbent at 550 ℃. The activation energy was calculated by the Chatterjee-Conrad method based on the TGA experiment. Desulfurization ability and activation energy of sorbent were decreased as the content of AgO increased.
- Ayala RE, Venkataramani VS, Javad A, Hill AH, Advanced Low-Temperature Sorbent, Proceedings of the Advanced Low-Temperature Sorbent, Proceedings of the Advanced Coal-Fired Power Systems Sorbent 95 Review Meeting, 1, 407 (1997)
- Choi E, Lee JK, Park D, Park WH, Korean J. Chem. Eng., 11(1), 25 (1994)
- Jeon GS, Chung JS, Korean J. Chem. Eng., 12(1), 132 (1995)
- Jeon GS, Chung JS, Korean J. Chem. Eng., 14(1), 49 (1997)
- Kang MP, Lee HS, Lee TJ, Rhee YW, HWAHAK KONGHAK, 40(4), 492 (2002)
- Kang SH, Rhee YW, Kang Y, Han KH, Lee CK, Jin GT, HWAHAK KONGHAK, 35(5), 642 (1997)
- Kyotani T, Kawashima H, Tomita A, Palmer A, Furimsky E, Fuel, 68, 74 (1989)
- Lee HS, Kang MP, Song YS, Lee TJ, Rhee YW, Korean J. Chem. Eng., 18(5), 635 (2001)
- Lee TJ, Kwon WT, Chang WC, Kim JC, Korean J. Chem. Eng., 14(6), 513 (1997)
- Lee YS, Yoo KO, Gavalas GR, Korean J. Chem. Eng., 8(4), 214 (1991)
- Moon SJ, Ihm SK, Korean J. Chem. Eng., 11(2), 111 (1994)
- Park DH, Lee YS, Kim HT, Yoo KO, HWAHAK KONGHAK, 30(6), 700 (1992)
- Patrick V, Kawashima H, Tomita A, Environ. Sci. Technol., 23, 218 (1989)
- Ryu CG, Wi YH, Lee CB, Lee YK, Chem. Ind. Technol., 16, 17 (1998)
- Song YK, Lee KB, Lee HS, Rhee YW, Korean J. Chem. Eng., 17(6), 691 (2000)
- Westmoreland PW, Harrison DP, Environ. Sci. Technol., 10, 659 (1976)
- Yi KB, Choi EM, Song YK, Rhee YW, HWAHAK KONGHAK, 37(5), 795 (1999)