청정기술 (Clean Technology)

  • 제24권2호
  • /
  • Pages.99-104
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  • 2018
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  • 1598-9712(pISSN)
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  • 2288-0690(eISSN)
한국청정기술학회 (The Korean Society of Clean Technology)
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고농도 메탄의 합성천연가스 생산을 위한 상업용 촉매의 반응특성; 운전조건에 대한 영향

Catalytic Performance for the Production of CH4-rich Synthetic Natural Gas (SNG) on the Commercial Catalyst; Influence of Operating Conditions

  • 김진호 (고등기술연구원 플랜트엔지니어링센터) ;
  • 류재홍 (고등기술연구원 플랜트엔지니어링센터) ;
  • 강석환 (고등기술연구원 플랜트엔지니어링센터) ;
  • 유영돈 (고등기술연구원 플랜트엔지니어링센터) ;
  • 김준우 (포항산업과학연구원) ;
  • 고동준 (포항산업과학연구원) ;
  • 정문 ((주)씨이에스) ;
  • 이종민 ((주)씨이에스)
  • Kim, Jin-Ho (Plant Engineering Center, Institute for Advances Engineering(IAE)) ;
  • Ryu, Jae-Hong (Plant Engineering Center, Institute for Advances Engineering(IAE)) ;
  • Kang, Suk-Hwan (Plant Engineering Center, Institute for Advances Engineering(IAE)) ;
  • Yoo, Young-Don (Plant Engineering Center, Institute for Advances Engineering(IAE)) ;
  • Kim, Jun-Woo (Research Institute of Industrial Science and Technology(RIST)) ;
  • Go, Dong-Jun (Research Institute of Industrial Science and Technology(RIST)) ;
  • Jung, Moon (Construction & Engineering Service(CES)) ;
  • Lee, Jong-Min (Construction & Engineering Service(CES))
  • 투고 : 2017.11.14
  • 심사 : 2018.01.17
  • 발행 : 2018.06.30
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초록

본 연구에서는 합성천연가스(synthetic natural gas, SNG)를 생산하기 위한 공정 개발을 위해 RIST-IAE에서 제안한 공정의 4차 반응기에 대하여 합성가스($H_2/CO_2$)를 이용하여 메탄화 반응을 수행하였다. 실험의 조건은 온도, 압력, 공간속도 등을 변화시켰으며, 이때 $CO_2$ 전환율, $CH_4$ 선택도, 반응 후 $H_2$의 농도에 대해 고찰하였다. 그 결과 $CO_2$ 메탄화반응에 의한 $CH_4$의 선택도는 공간속도가 낮을수록, 그리고 압력이 높을수록 증가하였다. 한편, 온도의 경우에는 $320^{\circ}C$에서 최대 값을 보였다. 이러한 결과로부터 SNG 공정에 적합한 4차반응기의 최적 조건을 얻을 수 있었다.

In this work, we performed the methanation reaction using synthesis gas ($H_2/CO_2$) for the process to produce synthetic natural gas (SNG) for $4^{th}$ methanation reactor in SNG process proposed by RIST-IAE. Experimental conditions were changed with temperature, pressure and space velocity. At this time, $CO_2$ conversion, $CH_4$ selectivity and $H_2$ concentration after reaction were investigated. As a result, $CH_4$ selectivity by the $CO_2$ methanation increased with lower space velocity and higher pressure. On the other hand, in the case of temperature, the maximum value was shown at $320^{\circ}C$. From these results, it was found that the optimum condition of the fourth reactor suitable for the SNG process was obtained.

키워드

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