Partial Oxidation of Methane in Palladium-silver Alloy Membrane Reactor

팔라듐-은 막반응기를 이용한 메탄의 부분산화반응

  • Choi, Tae-Ho (Division of Advanced Chemical Technology, Korea Research Institute of Chemical Technology) ;
  • Kim, Kwang-Je (Division of Advanced Chemical Technology, Korea Research Institute of Chemical Technology) ;
  • Moon, Sang-Jin (Division of Advanced Chemical Technology, Korea Research Institute of Chemical Technology) ;
  • Suh, Jung-Chul (LNG Research Center, Korea Gas Coperation) ;
  • Baek, Young-Soon (LNG Research Center, Korea Gas Coperation)
  • Received : 2005.02.17
  • Accepted : 2005.07.26
  • Published : 2005.10.10

Abstract

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, $O_2/CH_4$ mole ratio, $CH_4$ feed rate, and $N_2$ sweep gas flow rate. The methane conversions increased with the reaction temperatures in the range of 350 to $730^{\circ}C$. The highest methane conversion and CO selectivity were obtained at the condition of $O_2/CH_4$ mole ratio of 0.5 and $730^{\circ}C$ 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.

Acknowledgement

Grant : 이산화탄소 저감 및 처리 기술개발

Supported by : 과학기술부

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