A Study on Preparation and Reactivity of Zinc-based Sorbents for H2S Removal

H2S제거를 위한 아연계 탈황제 제조 및 반응특성 연구

  • Lee, Chang Min (Department of Chemical Engineering, KOREA University) ;
  • Yoon, Yea Il (Department of Chemical Engineering, KOREA University) ;
  • Kim, Sung Hyun (Department of Chemical Engineering, KOREA University)
  • Received : 1998.02.07
  • Accepted : 1999.01.09
  • Published : 1999.04.10


Zinc-based sorbents for $H_2S$ removal were prepared. The reactivity of sorbents was investigated by the successive cycles of sulfidation-regeneration at $650^{\circ}C$ in a fixed bed reactor. The desulfurization sorbents were prepared with granulation method to produce a spherical pellet with good attrition resistance. The fresh and reacted sorbents were characterized by X-Ray Diffraction (XRD) and X-Ray Photoelectron Spectroscopy (XPS) and the characteristics of sorbents on calcination conditons were analysed by Mercury Porosimetery and BET. The reactivity of sorbents decreased as the number of sulfidation-regeneration cycle increased. It is due to the zinc loss and the increase of the diffusion resistance by sintering, cracking and spalling of sorbents at the high temperature.


Zinc Titanate;Hydrogen Sulfide;Desulfurization;Sorbent


Supported by : 통상산업부


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