Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Effect of Boundary Temperature Distributions on the Outlet Gas Composition of the Cylindrical Steam Reformer

원통형 수증기 개질기의 경계 온도 분포에 따른 개질 가스 조성 변화

  • 김석 (한국과학기술원 기계공학과) ;
  • 한훈식 (한국과학기술원 기계공학과) ;
  • 김서영 (한국과학기술연구원) ;
  • 현재민 (한국과학기술원 기계공학과)
  • Received : 2011.02.07
  • Accepted : 2011.04.20
  • Published : 2011.06.10
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Abstract

Numerical simulations have been conducted for the cylindrical steam reformer having various boundary temperature distributions. $CH_4$, $H_2O$, CO, $H_2$ and $CO_2$ are often generated or destroyed by the reactions, namely the Steam Reofrming(SR) reaction, the Water-Gas Shift (WGS) reaction and the Direct Steam Reforming(DSR) reaction. The SR and the DSR reactions are endothermic reactions, and the WGS reaction is an exothermic reaction. The rate of reactions can be slightly controlled by artificially given boundary temperature distributions. Therefore, the component ratio of the gases at the outlet are different for various boundary temperature distributions, namely the constant, cubic and linear distributions. Among these distributions, the linear temperature distribution is outstanding for efficient hydrogen production of the steam reformer.

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References

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