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Received September 28, 2001
Accepted June 12, 2002
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Shaping Technology of Coal Gas Sorbents by Using a Spray Dryer
Chungnam National University, 220, Kung-dong, Yusung-ku, Daejeon 305-764, Korea 1Korea Electric Power Research Institute, 103-16, Munji-dong, Yusung-ku, Daejeon 305-380, Korea
sjpark@hanbat.chungnam.ac.kr
Korean Journal of Chemical Engineering, September 2002, 19(5), 756-764(9), 10.1007/BF02706964
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Abstract
The goal of this study was to develop HTHP sorbents for adaptation in fluidized bed desulfurizers or Transport Reactors. For this purpose, we shaped zinc-based sorbents (ZAC series) by using a spray dryer with a pressurized nozzle atomizer. To prepare the slurry for spraying, raw materials in submicron units and organic additives were used. We characterized the sorbents by SEM, XRD, Mean Particle Size Analysis, BET Surface Area and Attrition Ratio. The mean particle size was about 112 μm, the attrition resistance was very good and the TGA sulfur capacity of the fresh sample was calculated at about 23-24 wt%.
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Susan L, Adel FS, Maria FS, Ind. Eng. Chem. Res., 31(8) (1992)
Gangwal SK, "Hot-Gas Desulfurization Sorbent Development for IGCC Systems," IchemE Symposium Series, Sheffield, UK, 123, 159 (1991)
Gupta RP, Turk BS, Gangwal SK, "Development of Fluidized-Bed Spray-Dried Sorbents," Proceedings of the Advanced Coal-Fired Systems '96 Review Meeting, DOE/METC-96, s3-4 in CD-ROM (1996)
Gupta RP, Turk BS, Vierheilig AA, "Desulfurization Sorbents for Transport-Bed Applications," Proceedings of the Advanced Coal-Based Power and Environmental Systems '97 Conference, Pittsburgh, PA, ps2a.6 in CD-ROM, July 22-24 (1997)
Gupta RP, Turk BS, Vierheilig AA, "Desulfurization Sorbents for Transport-Bed Applications," Proceedings of the Advanced Coal-Based Power and Environmental Systems '98 Conference, Morgantown, WV, 2A-2 in CD-ROM, July,21-23 (1998)
Joseph CS, Shi BG, Edwin WA, Geoffrey RW, "Process for Improving the Physical and Catalytic Properties of a Fluid Cracking Catalyst," U.S. Patent, 5,739,072, Apr., 14 (1998)
Lee TJ, Kwon WT, Chang WC, Kim JC, Korean J. Chem. Eng., 14(6), 513 (1997)
Masters K, "Spraying Drying Handbook," London, Gorge Godwin/in, 4th ed. (1985)
Park YS, Rhee YW, Son JI, Chem. Ind. Technol., 11(5), 366 (1993)
Ranjani VS, "METC-10 Desulfurization Sorbents for Low-and High-Temperature Application," Proceedings of the Advanced Coal-Based Power and Environmental Systems '98 Conference, Morgantown, WV, July 21-23 (1998)
Ryu CK, Wi YH, Lee CB, Lee YK, Chem. Ind. Technol., 16(1), 17 (1998)
Ryu CK, Wi YH, Lee CB, Chem. Ind. Technol., 17, 41 (1999)
Song YK, Lee KB, Lee HS, Rhee YW, Korean J. Chem. Eng., 17(6), 691 (2000)
Susan L, Adel FS, Maria FS, Ind. Eng. Chem. Res., 31(8) (1992)
