Removal and Regeneration of $SO_2$ by Cupric Oxide Supported on Zeolite

CuO/Zeolite에 의한 $SO_2$의 제거 및 재생

  • 이승재 (연세대학교 공과대학 화학공학과) ;
  • 신창섭 (충북대학교 공과대학 산업안전공학과) ;
  • 이태희 (연세대학교 공과대학 화학공학과)
  • Published : 1990.11.01

Abstract

The reaction of sulfur dioxide with cupric oxide supported on zeolite was investigated over a temperature range of $250{\sim}450^{{\circ}C$. After the completion of the $SO_2$ removal reaction, the cupric sulfate produced was regenerated to copper by hydrogen or LPG. The experimental results showed that the removal efficiency of $SO_2$ was improved with temperature increase and with $SO_2$ inlet concentration decrease. The reaction of $SO_2$ with CuO/Zeolite was well explained by the shrinking unreacted core model using first order chemical reaction control and diffusion control. THe reaction rate constant and the effective diffusivity were respectively as follows: 1k (cm/s) = 2.519 exp[-10991 (cal/mol)/RT] $De(cm^2/s) = 2.06 \times 10^{-5} exp[-8380 (cal/mol)/RT]$

Keywords