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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Performance Evaluation of a Cylindrical Steam Reformer with Various Thermal Conditions

원통형 수증기 개질기의 열적조건 변화에 따른 개질성능 평가

  • Han, Hun Sik (Fluid System Design Division, Korea Atomic Energy Research Institute) ;
  • Kim, Seo Young (Center for Urban Energy System Research, Korea Institute of Science and Technology) ;
  • Karng, Sarng Woo (Center for Urban Energy System Research, Korea Institute of Science and Technology)
  • 한훈식 (한국원자력연구원 유체계통설계부) ;
  • 김서영 (한국과학기술연구원 도시에너지시스템연구단) ;
  • 강상우 (한국과학기술연구원 도시에너지시스템연구단)
  • Received : 2013.08.07
  • Accepted : 2014.04.21
  • Published : 2014.06.10
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Abstract

The experimental performance evaluation of a cylindrical steam reformer with various thermal conditions has been conducted. The bottom space of the cylindrical reactor was packed with Ruthenium (Ru) catalyst. A three-segment furnace was installed to create the axially variable boundary temperature distribution. Six K-type thermocouples were inserted into the catalyst layer, and three exhaust ports were fabricated on the side wall along the flow direction. The exhausted gases at each port were analyzed by using gas chromatograph (GC) system. The experimental results showed that the reforming reaction occurs intensively in the upstream region and more hydrogen is obtained when the intake gas is sufficiently heated up through the enhanced steam reforming (SR) reaction. The axially increasing boundary temperature setup provided the maximally accumulated reforming efficiency of 74.8%, when the reactor was placed at the 3rd section of the furnace.

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References

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