Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Production of Hydrogen-Rich Gas from Methane by a Thermal Plasma Reforming

고온 플라즈마 개질에 의한 메탄으로부터 고농도 수소생산

  • Kim, Seong-Cheon (BK21 Team for Hydrogen Production Dept. Environmental Engineering, Chosun University) ;
  • Lim, Mun-Sup (BK21 Team for Hydrogen Production Dept. Environmental Engineering, Chosun University) ;
  • Chun, Young-Nam (BK21 Team for Hydrogen Production Dept. Environmental Engineering, Chosun University)
  • 김성천 (조선대학교 환경공학부.BK21 바이오가스 기반 수소생산 사업팀) ;
  • 임문섭 (조선대학교 환경공학부.BK21 바이오가스 기반 수소생산 사업팀) ;
  • 전영남 (조선대학교 환경공학부.BK21 바이오가스 기반 수소생산 사업팀)
  • Published : 2006.12.15
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Abstract

The purpose of this paper was to investigate the reforming characteristics and optimum operating condition of the plasmatron assisted $CH_4$ reforming reaction for the hydrogen-rich gas production. Also, in order to increase the hydrogen production and the methane conversion rate, parametric screening studies were conducted, in which there were the variations of the $CH_4$ flow ratio, $CO_2$ flow ratio, vapor flow ratio, mixing flow ratio and catalyst addition in reactor. High temperature plasma flame was generated by air and arc discharge. The air flow rate and input electric power were fixed 5.1 l/min and 6.4 kW, respectively. When the $CH_4$ flow ratio was 38.5%, the production of hydrogen was maximized and optimal methane conversion rate was 99.2%. Under these optimal conditions, the following synthesis gas concentrations were determined: $H_2$, 45.4%; CO, 6.9%; $CO_2$, 1.5%; and $C_2H_2$, 1.1%. The $H_2/CO$ ratio was 6.6, hydrogen yield was 78.8% and energy conversion rate was 63.6%.

Keywords

References

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