Journal of the Korean Industrial and Engineering Chemistry, Vol.13, No.5, 411-416, August, 2002
전자빔 조사에 의한 메탄의 개질반응에 관한 연구
A Study on Methane Reforming by Electron Beam Irradiation
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초록
천연가스의 주성분인 메탄을 합성가스 등의 화학원료로 전환시키려는 관심이 최근 들어 점차 고조되고 있다. 본 연구에서는 전자빔을 이용한 메탄의 개질 연구가 수행되었다. 메탄은 매우 안정한 포화 탄화수소이므로 낮은 선량에서는 메탄의 전환율이 낮은 반면, 4000 kGy의 고선량에서 메탄이 약 20% 전환되었는데 수소, 프로판, 2-메틸 프로판, 부탄, 2-메틸 부탄, 펜탄 등의 화학원료들이 생성되었다. 온도와 수분에 의한 메탄의 전환율을 알아 본 결과 수분이 온도보다 큰 영향인자임을 알 수 있었다. 전자빔 단독처리 보다는 촉매를 포함한 hybrid system을 이용하는 것이 효과적이며, 메탄만을 처리하는 것보다는 메탄과 이산화탄소를 함께 처리하는 것이 다양한 화학원료 생성에 유리하다는 결론이 얻어졌다.
Recently, there has been increased interest in reforming methane, a major compound of natural gas, into chemicals, such as carbon monoxide and hydrogen. The conversion rate of methane at the lower dose was relatively low since it is very stable saturated hydrocarbon. There was about 20% conversion of methane at the high dose (4000 kGy). The most abundant gaseous by-products obtained from this process were hydrogen, propane, 2-methyl propane, butane, 2-methyl butane and pentane. It was also found that moisture had even more significant effect on the conversion of methane than temperature. It was concluded that a hybrid system including catalyst and electron beam is more reliable than single electron beam treatment in view of reforming methane. In addition, the treatment of methane and carbon dioxide mixture seemed to be more effective obtaining more various chemical fuels than that of methane itself.
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