화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of the Korean Industrial and Engineering Chemistry, Vol.16, No.5, 641-647, October, 2005
Export Citation
팔라듐-은 막반응기를 이용한 메탄의 부분산화반응
Partial Oxidation of Methane in Palladium-silver Alloy Membrane Reactor
최태호, 김광제†, 문상진, 서정철1, 백영순1
  • 한국화학연구원
  • 1한국가스공사
Tae-Ho Choi, Kwang-Je Kim†, Sang-Jin Moon, Jung-Chul Suh1, and Young-Soon Baek1
  • Division of Advanced Chemical Technology, Korea Research Institute of Chemical Technology, P.O.Box 107, Yusong, Daejon 305-343, Korea
  • 1LNG Research Center, Korea Gas Coperation, Dong Choon Dong 973, Inchon 406-130, Korea
E-mail:
초록
메탄의 부분산화반응은 수소 제조의 중요한 반응 중의 하나이다. 무전해 도금방법에 의해 제조된 팔라듐-은 막을 막반응기(membrane reactor)로서 메탄의 부분산화반응에 적용하여 반응온도, O2/CH4 몰비, CH4 공급속도, N2 운반 가스 흐름속도 등의 변화에 따라 실험을 수행하였다. 막반응기의 메탄 전환율은 알루미나에 담지된 니켈 촉매를 사용하는 반응조건하에서 350~730 ℃의 반응온도에 따라 증가하는 경향을 보였으며, 특히 730 ℃와 O2/CH4 몰비 0.5에서 메탄 전환율과 CO 선택도가 가장 높았다. 막반응기의 메탄 전환율은 전통적인 관형반응기와 비교한 결과 반응조건에 따라 10~40% 정도 높았다.
The partial oxidation of methane is one of important processes for hydrogen production. As a membrane reactor, palladium-silver (Pd-Ag) alloy membrane prepared by electroless plating technique was employed for partial oxidation of methane. The experimental variables were reaction temperature, O2/CH4 mole ratio, CH4 feed rate, and N2 sweep gas flow rate. The methane conversions increased with the reaction temperatures in the range of 350 to 730 ℃. The highest methane conversion and CO selectivity were obtained at the condition of O2/CH4 mole ratio of 0.5 and 730 ℃ using commercially available nickel/alumina catalyst. The Pd-Ag membrane reactor showed higher methane conversions, 10~40% higher, compared to those in a traditional reactor.
Keywords:partial oxidation of methane;membrane reactor;palladium-silver alloy membrane;hydrogen separation
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