한국가스학회지 (Journal of the Korean Institute of Gas)

  • 제22권1호
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  • Pages.26-36
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  • 2018
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  • 1226-8402(pISSN)
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  • 2713-6922(eISSN)
한국가스학회 (The Korean Institute of GAS)
권호 표지
DOI QR코드

DOI QR Code

뷰테인 건식 개질 반응을 위한 Ni/γ-Al2O3 촉매를 이용한 촉매 공정과 촉매+플라즈마 공정 비교

Comparison of Dry Reforming of Butane in Catalyst Process and Catalyst+Plasma Process over Ni/γ-Al2O3 Catalyst

  • 조진오 (제주대학교 생명화학공학과) ;
  • 좌은진 (한국에너지기술연구원) ;
  • 목영선 (제주대학교 생명화학공학과)
  • Jo, Jin-Oh (Department of Chemical and Biological Engineering, Jeju National University) ;
  • Jwa, Eunjin (Jeju Global Research Center) ;
  • Mok, Young-Sun (Department of Chemical and Biological Engineering, Jeju National University)
  • 투고 : 2017.09.06
  • 심사 : 2018.01.11
  • 발행 : 2018.02.28
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초록

기존 건식 개질 반응에 사용되는 니켈 기반 촉매 공정은 활성화 온도가 높고, 촉매 표면의 활성점에 탄소 침착 및 금속 소결 현상 등의 문제점이 있다. 이에 본 연구에서는 촉매공정에 DBD 플라즈마 공정이 결합된 촉매+플라즈마 공정을 이용하여 뷰테인 건식 개질 반응 특성을 조사하고 기존 촉매 공정과 비교 분석하였다. 촉매의 특성을 파악하기 위해 비표면적 분석기, XRD, SEM 및 TEM 등을 사용하여 물리 화학적 특성을 조사 하였다. $580^{\circ}C$에서 $10%Ni/{\gamma}-Al_2O_3$촉매를 사용한 경우 촉매+플라즈마 공정의 경우 촉매 단독 공정에 비해 이산화탄소와 뷰테인 전환율이 각각 27%, 39%향상되었다. 촉매+플라즈마 공정의 경우 플라즈마에 의해 생성된 다양한 활성종의 영향으로 이산화탄소와 뷰테인 전환율 및 생성되는 수소 농도가 증가하였으며, 뷰테인 건식 개질 반응 과정에서 플라즈마에 의해 니켈 촉매의 크기가 감소하고 분산도가 증가하여 반응 효율이 향상되는 것으로 판단되었다.

Conventional nickel-based catalyst processes used for dry reforming reactions have high activation temperatures and problems such as carbon deposition and metal sintering on the active sites of the catalyst surface. In this study, the characteristics of butane dry reforming reaction were investigated by using DBD plasma combined with catalytic process and compared with existing catalyst alone process. The physical and chemical properties of the catalysts were investigated using a surface area & pore size analyzer, XRD, SEM and TEM. Using $10%Ni/{\gamma}-Al_2O_3$ at $580^{\circ}C$, in the case of the catalyst+plasma process, the conversion of carbon dioxide and butane were improved by about 30% than catalyst alone process. When the catalyst+plasma process, the conversion of carbon dioxide and butane and the hydrogen production concentration are enhanced by the influence of various active species generated by the plasma. In addition, it was found that the particle size of the catalyst is decreased by the plasma in the reaction process, and the degree of dispersion of the catalyst is increased to improve the efficiency.

키워드

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