Abstract:
PURPOSE: A collecting method of carbon dioxide using carbon dioxide absorbent is provided to have excellent absorption of carbon dioxide, fast reaction speed, and sharply reduce in the collecting process of carbon dioxide. CONSTITUTION: A carbon dioxide absorbent comprises monoethanolamine 10-70wt%, diethanolamine 10-40wt%, and triethanolammine 5-75wt%. The absorbent is manufactured by reacting overdose of ammonia and ethylene oxide. The ammonia and ethylene oxide are reacted to the mole ration of 1:1-20:1. A collecting method of carbon dioxide uses aqueous solution including the carbon dioxide absorbent 20-40 wt%. Temperature of the absorbent aqueous solution is 40-80 °C when collecting carbon dioxide.
Abstract:
PURPOSE: A nickel oxide-nickel composite membrane for hydrogen separation and a manufacturing method thereof are provided to prevent interdiffusion between a hydrogen separating membrane layer and a surface catalyst layer and to prevent reduction of permeability by suppressing impurities which are generated by interdiffusion between metals. CONSTITUTION: A nickel oxide-nickel composite membrane for hydrogen separation comprises nickel oxide and nickel which are generated by an anodizing method with an organic compound electrolyte. The organic compound electrolyte comprises ethylene glycol, glycerol, diethylene glycol, dimethyl sulphoxide(DMSO), and formamide as a solvent and comprises the nickel oxide and the nickel which include NH4F, HF, NaF, or KF. One side or both sides of the hydrogen segregation composite membrane is coated with a metal which is selected from a group comprised of palladium(Pd), palladium alloy, vanadium(V), vanadium alloy, tantalum(Ta), tantalum alloy, niobium(Nb), and niobium alloy. The nickel oxide acts as a preventing interdiffusion layer between metals. The thickness of the nickel oxide is between 1 micromolar and 3 micromolar in the hydrogen segregation composite membrane. The hydrogen segregation composite membrane is used for separating a gas mixture which is generated after a water gas shift reaction, mixing gas for carbon dioxide depositing, mixing gas for hydrogen refining, and mixing gas which is generated after methane reforming reaction.
Abstract:
본 발명은 식물성 지질, 동물성 지질, 거대조류 및 미세조류에서 추출된 지질과 같이 생물체로부터 유래된 재생가능한 원료들을 촉매반응을 이용해서 탄화수소로 제조하는 방법에 관한 것으로, 더욱 상세하게는 수소를 소모하지 않고 원료에 포함된 산소를 제거해서 휘발유나 경유에 적합한 탄화수소를 선택적으로 생산하는 제조방법에 관한 것이다. 본 발명은 원료물질을 촉매인 하이드로탈사이트와 접촉시켜 탈탄산 또는 탈카보닐화반응을 통해 산소를 제거하여서 제조되며, 상기 원료물질은 생물체로부터 유래된 재생가능한 공급원으로부터 얻어지는 트리글리세라이드, 지방산 및 지방산 유도체 중 선택된 1종 이상의 것을 특징으로 한다. 하이드로탈사이트, 바이오매스, 탈탄산, 탄화수소