Abstract
Various CuO-based sorbents were prepared to investigate effects of sorbent ingredients such as SiO2, MnO2, and MoO3 on desulfurization reactivity. Several candidate sorbents chosen from a TGA screening test were further tested in a microreactor system. The amount of SiO2 support to minimize sintering of sorbents was 25 wt%. Sulfur loading was seriously affected by the amount of additives (MnO2, MoO3) in a multi-cycle test. Improvement of sulfur loading by the additives was observed in the multi-cycle test. Effects of support materials on sulfur loading were also investigated by using SiO2, g-alumina and zeolite. SiO2 showed the best performance among the support candidates. The sorbent showing the best sulfur loading ability was CMS6 (CuO :MoO3 : MnO2 : SiO2=61 : 11 : 3 : 25). Its sulfur loading reached up to 13.8 g sulfur/100 g sorbent in a multi-cycle test.
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References
Ayala, R. E., Venkataramani, V. S., Javad, A. and Hill, A. H., “Advanced Low-Temperature Sorbent,” Proceedings of the Advanced Coal-Fired Power Systems ’95 Review Meeting,1, 407 (1997).
Choi, E.Y., Lee, J. K., Park, D.K. and Park, W.H., “Removal of SOx and NOx from Flue Gas with Ceria,”Korean J. Chem. Eng.,11, 25 (1994).
Gasper, L. D. and Washington, G., “Sorbent for Use in Hot Gas Desulfurization,” United Patent, Patent NO. 5,227,351 (1993).
Javad, A., Rachid, J. S., Wangerow, J. R. and Zarnegar, M. K., “Advanced Low-Temperature Sorbents for Fluid-Bed Application,” Advanced Coal-Based Power and Environmental Systems 97 Conference July 22–24, 2A.5 (1997).
Kang, S. H., Rhee, Y.W., Han, K. H., Lee, C. K. and Jin, K. T., “A Study of Desulfurization Reaction using Zinc Titanate at High-Temperature,”Hwahak-Konghak,35, 642 (1997).
Kim, M. C. and Kim, K. L., “A Role of Molybdenum and Shape Selectivity of Catalysts in Simultaneous Reactions of Hydrocracking and Hydrodesulfurization,”Korean J. Chem. Eng.,13, 1 (1996).
Kwak, C. and Moon, S.H., “Effect of the Fluorine-Addition Order on the Hydrodesulfurization Activity of Fluorinated NiW/Al2O3 Catalysts,”Korean J. Chem. Eng.,16, 608 (1999).
Kyotani, T., Kawashima, H., Tomita, A., Palmer, A. and Furimsky, E., “Removal of H2S from Hot has in the Presence of Cu-containing Sorbents,”Fuel,68, 74 (1989).
Lee, T. J., Kwon, W. T., Chang, W. C. and Kim, J. C., “A Study of Regeneration of Zinc Titanate Sorbents for H2S Removal,”Korean J. Chem. Eng.,14, 513 (1997).
Lee, Y. S., Yoo, K. O. and Gavalas, G. R., “Optimal Temperature of Fixed-Bed Reactor for High Temperature Removal of Hydrogen Sulfide,”Korean J. Chem. Eng.,8, 214 (1991).
Moon, S. J. and Ihm, S.K., “Characteristics of Bimetallic Cobalt and Molybdenum Catalysts Supported on Activated Carbon or Alumina in Hydrodesulfurization,”Korean J. Chem. Eng.,11, 111 (1994).
Park, H. K., Kim, D. S. and Kim, K. L., “Hydrodesulfurization of Dibenzothiophene over Supported and Unsupported Molybdenum Carbide Catalysts,”Korean J. Chem. Eng.,15, 625 (1998).
Ryu, C.G., Wi, Y.H., Lee, C. B. and Lee Y.K., “Review for the Development of High Temperature Sorbent for IGCC(I),”Chemical Industry and Technology,16, 17 (1998).
Tamhankar, S. S., Bagajewicz, M. and Gavalas, G. R., “Mixed-Oxide Sorbents for High-Temperature Removal of Hydrogen Sulfide,”Ind. Eng. Chem. Process Des. Dev.,25, 429 (1986).
Westmoreland, P.W. and Harrison, D. P., “Evaluation of Candidate Solid for High Temperature Desulfurization of Low-Btu Gases,”Env. Sci. Tech.,10, 659 (1976).
Yi, K. B., Choi, E. M., Song, Y.K. and Rhee, Y.W., “Low-Temperature Desulfurizing Reaction with Cu-Containing Sorbents,”HWAHAK KONGHAK,37, 795 (1999).
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Song, YK., Lee, KB., Lee, HS. et al. Reactivity of copper oxide-based sorbent in coal gas desulfurization. Korean J. Chem. Eng. 17, 691–695 (2000). https://doi.org/10.1007/BF02699119
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DOI: https://doi.org/10.1007/BF02699119