Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Performance of V2O5-TiO2 Catalyst Prepared by Various Methods for Removal of Hydrogen Sulfide Emitted from Steel Smelting Process

다양한 제조방법으로 제조된 V2O5-TiO2 촉매를 이용한 제련공정에서 발생한 황화수소 제거능 비교

  • Kim, Moon il (Department of Environmental Administration, Catholic University in Pusan)
  • 김문일 (부산가톨릭대학교 환경행정학과)
  • Received : 2021.05.12
  • Accepted : 2021.05.21
  • Published : 2021.06.30
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Abstract

V2O5-TiO2 catalysts were prepared by various methods. V2O5-TiO2 were prepared by sol-gel method with different drying conditions (aerogel and xerogel), and V2O5 supported on TiO2 obtained by sol-gel method with precipitation-deposition method and impregnation method. The performance of the V2O5-TiO2 catalysts was investigated for the selective oxidation of hydrogen sulfide in the stream containing both ammonia and excess water. All the catalysts showed good dispersion of vanadium and they had high H2S conversion with no or little production of sulfur dioxide. The V2O5-TiO2 aerogel catalyst prepared by sol-gel method with drying under super critical condition had the highest surface area which led to better catalytic activity compared to those by other synthesis methods.

Keywords

Acknowledgement

이 논문은 2019년도 부산가톨릭대학교 교내연구비에 의하여 연구되었음.

References

  1. Centi, G., 1996, Nature of active layer in vanadium oxide supported on titanium oxide and control of its reactivity in the selective oxidation and ammoxidation of alkylaromatics, Appl. Catal. A, 147, 267-298. https://doi.org/10.1016/S0926-860X(96)00179-2
  2. Elsner, M. P., Menge, M., Muller, C., Agar, D. W., 2003, The Claus process: teaching an old dog new tricks, Catal. Today, 79-80, 487-494. https://doi.org/10.1016/S0920-5861(03)00071-3
  3. Kim, B. G., Park, D. W., Kim, I., Woo, H. C., 2003, Selective oxidation of hydrogen sulfide over mixture catalysts of V-Sb-O and Bi2O3, Catal. Today, 87, 11-17. https://doi.org/10.1016/j.cattod.2003.10.007
  4. Kim, M. I., Lee, G. H., Kim, D. W., Kang, D. H., Park, D. W., 2014, Production of elemental sulfur and ammonium thiosulfate by H2S oxidation over Nb2O5 supported on Fe-pillared clay catalysts, Korean J. Chem. Eng., 31, 2162-2169. https://doi.org/10.1007/s11814-014-0167-3
  5. Lee, G. H., Lee, M. S., Lee, G. D., Kim, Y. H., Hong, S. S., 2002, Catalytic combustion of benzene over copper oxide supported on TiO2 prepared by sol-gel method, J. Ind. Eng. Chem., 6, 572-577.
  6. Miller, J. B., Johnston, S. T., Ko, E. I., 1994, Effect of prehydrolysis on the textural and catalytic properties of titania-silica aerogels, J. Catal., 150, 311-320. https://doi.org/10.1006/jcat.1994.1349
  7. Van Dillen, J. A., Geus, J. W., Hermans, L. A. M., Van Der Meijden, J., 1976 in: Bond, G. C., Wells, P. E., Tompkins, F. C. (Eds.), Proc. 6th Int. Congr. on Catalysis, The Chemical Society, London, 677.
  8. Wachs, I. E., Weckhuysen, B. T., 1997, Structure and reactivity of surface vanadium oxide species on oxide supports, Appl. Catal. A, 157, 67-90. https://doi.org/10.1016/S0926-860X(97)00021-5