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A Numerical Study on the Heat and Fluid Flow in Steam Reforming Reactor

수증기 개질 반응로에 대한 열유동 해석

  • Received : 2013.01.16
  • Accepted : 2013.04.24
  • Published : 2013.04.30

Abstract

A numerical study on the heat and fluid flow has carried out for the design of the steam reforming reactor which consists of six reforming tubes and one burner. Reforming reaction calculation is coupled with the heat and fluid flow one. The burner type in the reforming reactor is chosen through the fluid flow calculation according to different type of burner structure. It is shown that the significant temperature gradient exists in the reforming reactor, affecting the component variation along the length of reforming tube. The component ratio of reforming gas is changed by the variation of SCR and GHSV.

수증기 개질 반응로 설계를 위해 수증기 개질 반응로에 대한 열유동 해석을 수행하였다. 6개의 이중관형 개질기 튜브들과 1개의 버너로 구성된 반응로에 대해 개질반응과 열유동 해석을 연계하여 수치계산을 수행하였다. 버너 형상 변화에 따른 반응로 내에서의 유동구조를 계산하여 버너 형상을 선택하였다. 개질반응 통합해석 결과, 반응로 상하단내에서 온도구배가 크게 나타났으며 개질기 튜브 내의 조성 변화도 반응로 온도분포의 영향을 받는 것으로 나타났다. 또한, 운전조건인 SCR 및 GHSV 변동에 따른 개질 반응특성이 변화함을 확인할 수 있었다.

Keywords

References

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