Abstract:
본발명은물을열분해하여수소를제조하는방법에있어서, (a) 철 70%이상을함유하는내열및 내압재질로구성되는반응기내부에고체산, 또는고체산과금속및 전해질중에서선택되는하나이상과의혼합물을구비하는단계; (b) 상기반응기의온도를물의기화점이하로유지하면서물 또는수증기를주입하여고체산에물을흡착시키는단계; (c) 500 K 이상 1500 K 이하의온도와 0.5 기압이상 100 기압이하의압력에서물을분해하여수소를생산하는단계; 및 (d) 반응기내부온도를물의기화점이하로낮추는단계를포함하는수소제조방법을제공한다. 본발명에의하면, 물분해에의한수소생산에있어서고체산에흡착되는물의양을원하는대로조절할수 있게함으로서낮은반응온도와압력에서도물을효율적으로분해하여수소의생산량을증가시킬수 있다. 따라서, 물의열분해방식에의한수소생산의경제성을향상시킬수 있으며, 그에따라, 물의열분해에의한수소생산을상업화할수 있다.
Abstract:
PURPOSE: A manufacturing method of hydrogen by water pyrolysis is provided to improve economical characteristic of water pyrolysis-based hydrogen production by increasing the productivity of hydrogen. CONSTITUTION: A manufacturing method of hydrogen by water pyrolysis includes the following steps: solid acid or one or more mixtures selected from solid acid, metals, and electrolytes are arranged in a reactor made of a heat resistance and pressure resistance material containing 70% or more of iron; the internal temperature of the reactor is maintained at the boiling point of water or less, and water or vapor is injected into the reactor such that the solid acid absorbs water; the water is pyrolyzed under 500 to 1500 K and 0.5 to 100 atm to generate hydrogen; and the internal temperature of the reactor is reduced to the boiling point of the water or less. The metals are one, a mixture, or an alloy selected from a group including aluminum, zinc, iron, cobalt, manganese, chromium, and nickel. [Reference numerals] (AA) Heating wire
Abstract:
A catalyst composition is provided to prepare water, helium, hydrogen, oxygen, nitrogen, carbon dioxide, etc. having compositions different from those of the reactants by performing nuclear transformation of reactants including water, and a single component or mixed components of compounds such as hydrogen, oxygen, nitrogen, and carbon dioxide presenting as gases at a temperature of at least 100°C. A catalyst composition for performing nuclear transformation of hydrogen, oxygen, nitrogen, or carbon dioxide in the water decomposition reaction process comprises only a compound classified as a solid acid. A catalyst composition for performing nuclear transformation of hydrogen, oxygen, nitrogen, or carbon dioxide in the water decomposition reaction process comprises 20 to 99 wt.% of a compound classified as a solid acid and 1 to 80 wt.% of a transition metal compound. A catalyst composition for performing nuclear transformation of hydrogen, oxygen, nitrogen, or carbon dioxide in the water decomposition reaction process comprises 20 to 99.5 wt.% of a compound classified as a solid acid and 0.5 to 80 wt.% of an electrolyte.
Abstract:
본 발명은 루이스 산으로 분류되는 화합물, 루이스 산에 전자쌍을 제공할 수 있는 금속 화합물, 전이금속 또는 전이금속 화합물 및 전해질을 필요에 따라 혼합한 촉매 조성물에 관한 것으로 본 발명에 의한 촉매 조성물은 기상유기물을 분해하고 물을 분해하여 수소를 생성시키며, 물과 이산화탄소를 반응시켜 유기물을 합성하는 특성을 갖는다. 기상 유기물 분해, 유기물 합성, 이산화탄소 전환, 물분해, 루이스 산.
Abstract:
PURPOSE: A preparation method of porous ceramic filter, especially, being applied to a water purifier, having filtering and antibacterial effects at a time is provided which simplifies structure of water purifier and improves antibacterial durability by dispersing Ag into ceramic raw materials. CONSTITUTION: The method comprises the steps of: (i) mixing 70-99.9wt.% of ceramic materials composed of one or more of clay, kaolin, feldspar and pottery stone with 0.1-30wt.% of silver salt such as silver acetate, silver carbonate and silver oxalate; (ii) mixing 30-95wt.% of the ceramic materials of step (i) with 5-70wt.% of powdered flammable materials such as carbon compound(graphite, carbon black), hydrocarbon compound(melamine, sugar) and mixture thereof; (iii) forming, drying and sintering at 500-1200deg.C for more than 1hrs. Also, the following Ag-coating step can be added: soaking the ceramic filter silver into salt solution containing 1-20wt.% of Ag+ ions; drying and sintering it at 500-1200deg.C for more than 30min.
Abstract:
PURPOSE: A chromatography separation method using radially directed electric field is provided, which can control residence time of object material in the radial electric field according to the strength of electric field and relative polarity of an object material, a solvent and a packing material and can increase separation efficiency. Therefore the system can achieve high efficiency and high separation performance and also can be applied to chromatography of industrial scale. CONSTITUTION: The method comprises: i) applying voltage of more than 1V to chromatography column to form an electric field radially 1-10 minutes before charging sample; and ii) controlling residence time of the object material by controlling the strength of electric field. The equipment is characterized by a chromatography column (5), wherein an inside electrode (7) and an outside electrode (8) are installed inside and outside of the column respectively to charge electric field for separating an object material from a solvent and a packing material, the column having a channel with an inlet (11) and an outlet (12) for a coolant or heating media to flow.
Abstract:
PURPOSE: A manufacturing method of prolonged action granular fertilizer is provided to improve heat resistance and durability by using a coating material mainly composed of rosin derivatives containing zinc with having an initial melting point of 75°C or higher. CONSTITUTION: An initial coating material is mixed 70-98 wt.% of rosin derivatives containing zinc with having an initial melting point of 75°C or higher, and 2-30 wt.% of propenic acid polymer, and then is dissolved in an organic solvent to be the concentration of 1-50 wt.%. The initial coating material is basically coated to be 2-30 wt.% compared to granular fertilizer. A mixture contains 30-85 wt.% of rosin derivatives and 15-70 wt.% of thermoplastic resin having the hardening temperature of 90°C or higher. A protective film is manufactured by dissolving in the organic solvent to be 1-50 wt.% concentration. The mixture is protectively coated to be 2-10 wt.% compared to basically coated granular fertilizer and is heat-treated until the hardening of the thermoplastic resin is completed.