Abstract:
본 발명은 산성가스 포집용 건식 흡착제 및 이의 제조방법에 관한 것이다. 본 발명에 따른 건식 흡착제는 산성가스를 효과적으로 포집할 수 있는 관능기인 아민을 다량 함유하는 단량체를 중합하여 높은 아민 밀도의 건식흡착제를 용이하게 제조할 수 있고, 고분자 골격 내의 아민기의 분포, 위치, 수 등을 제어할 수 있을 뿐만 아니라, 이산화탄소 흡착이 용이한 다량의 아민의 존재로 인해 높은 이산화탄소 흡착량을 나타낸다. 또한 아민기를 포함하는 단량체들이 지지체 표면 위에 공유결합 형태로 결합되어 있어 화학적 안정성이 뛰어나 이산화탄소의 흡·탈착이 반복되어도 초기의 흡착량을 유지할 수 있으므로, 산성가스 포집용 건식 흡착제로 유용할 수 있다.
Abstract:
A purpose of the present invention is to provide a device for enriching and recovering the fluorinated gas using a separating membrane, and a method to enrich and recover fluorinated gas using the device. The device for enriching the fluorinated gas comprises a gas supplying unit which supplies mixed gas including fluorinated gas; an enriching unit which has one or more separating membrane modules separating the fluorinated gas from the mixed gas by having an inlet through which mixed gas is injected from the supplying unit, the separating membrane separating the fluorinated gas, a penetration hole through which non-fluorinated gas separated from the fluorinated gas by the separating membrane is discharged, and an outlet through which the fluorinated gas is discharged; a decompression pump providing driving power which penetrates the non-fluorinated gas from the separating membrane module, but the pump is connected with the penetration hole of the separating membrane module; and a discharging flux control unit connected with the outlet of the separating membrane module and controlling the flux of the fluorinated gas discharged from the separating membrane module. The device for recovering the fluorinated gas comprises a separating membrane module in the same structure as that of the device for enriching the fluorinated gas. According to the present invention, the fluorinated gas can be enriched and recovered efficiently by recovering lost fluorinated gas through the recovering device. [Reference numerals] (200) Enriching section; (400) Recovering section; (AA) Mass flow controller; (BB) Vacuum pump
Abstract:
The present invention relates to a purification method of ionic liquid removing high boiling point organic compounds in the ionic liquid. The purification method of the ionic liquid removing the high boiling point organic compounds in the ionic liquid of the present invention: has an excellent purification effect compare to an existing purification method using a regular organic solvent for producing high purity ionic liquid; has a simple purification process for improving an economic effect; and has an excellent environmental effect of reducing the generation amount of a waste solvent by using the small amount of solvents compare to the existing purification method using the large amount of organic solvents for producing the high purity ionic liquid. The purification method of the ionic liquid can be applied to various fields including an organic synthesis, an electrochemical biotechnology, chemical technology, and separation processes.
Abstract:
The present invention relates to a manufacturing method of a porous aluminum-based hollow fiber membrane, and a linear porous aluminum-based hollow fiber membrane which has improved selective permeability and mechanical strength manufactured by the same and, more particularly, to a manufacturing method of a porous aluminum-based hollow fiber membrane which comprises: a step of manufacturing an aluminum precursor liquid by dissolving an aluminum precursor in the solvent (step 1); a step of manufacturing a spinning solution by adding a polymer resin in the aluminum precursor liquid of the step 1 (step 2); a step of manufacturing a hollow fiber membrane by dipping the spinning solution of the step 2 to coagulant after extruding through a nozzle (step 3); a step of heat treating the manufactured hollow fiber membrane of the step 3 (step 4); a step of sintering the heat treated hollow fiber membrane of the step 4 in a heating furnace by rotating (step 5); and a linear porous aluminum-based hollow fiber membrane manufactured by the same. The manufacturing method of a porous aluminum-based hollow fiber membrane is capable of mass-producing the hollow fiber membrane in which the unit price for producing is cheap by having a simple process; improving the heat-resisting property, the durability, the chemical-proof property, the mechanical strength, and high selective permeability by sintering with rotating inside a tube furnace; manufacturing linear porous aluminum-based hollow fiber membrane which has large valid membrane area per unit volume which is favorable to membrane modularization thereby efficiently using in a water treatment area which needs severe operation condition.
Abstract:
PURPOSE: A novel manufacturing method of Butylmethyl cellulose is provided to be wisely used to the separation membrane and film for water treatment by using methyl cellulose to reduce the manufacturing time and the manufacturing cost, prevent environmental contamination due to by-product, and improve the manufacturing process. CONSTITUTION: A manufacturing method of Butylmethyl cellulose adds methyl cellulose of chemical formula 2, butyric acid and organic solvent of chemical formula 3 to the chemical formula 1 for obtaining the mixture by stirring it. (Step 1) The intended compound is dried to be obtained after the compound manufactured in the step 1 is primary washed with organic solvent and secondary washed with water. (Step 2) [Equation 1] (R is H or CH3 when the R is not H or CH3 at the same time in the chemical formula 2. R is H, CH_3 or C_6H_5CO in the chemical formula 1. The reaction ratio of methyl cellulose: butyric acid of the step 1 is 1: 1-2. Organic solvent of the step 1 is more than one selected from the group of pyridine, quinoline, furan, pyran and thiophene. The step 1 is performed in 120-150 °C. The step 1 is performed in 2-4 hours. Organic solvent of the step 2 is selected from the group of methanol, ethanol, propanol and butanol.
Abstract:
본 발명은 불화가스 분리농축장치 및 이를 이용한 불화가스의 분리농축방법에 관한 것으로, 상세하게는 불화가스를 포함하는 혼합가스가 공급되는 가스공급부; 상기 가스공급부로부터 공급되는 혼합가스의 유량을 제어하는 유입량제어부; 상기 유입량제어부를 통해 혼합가스가 주입되는 주입구, 불화가스가 분리된 비불화가스가 배출되는 투과구 및 분리된 불화가스가 배출되는 배출구를 구비하여 혼합가스로부터 불화가스를 분리하는 분리막 모듈이 1 또는 그 이상 직렬연결된 분리부; 상기 분리부의 투과구와 연결되되, 상기 분리부 내부를 감압시켜 분리막 모듈 내부로 가스가 주입 및 분리되는 구동력을 발생시키는 감압부; 및 상기 분리부의 배출구와 연결되되, 상기 분리부로부터 배출되는 불화가스의 유량을 제어하는 배출량제어부를 포함하는 불화가스 분리농축장치를 제공한다. 본 발명에 따른 불화가스 분리농축장치 및 이를 이용한 불화가스의 분리방법은 분리막을 이용하여 불화가스를 처리하는 종래의 가압방식보다 더욱 높은 불화가스 분리·농축 효율을 나타낼 수 있다. 또한, 불화가스의 분리가 수행되는 분리막 모듈의 압력을 일정하게 유지하여 대형화에 따른 효율저하 문제가 없으며, 가압부로 인하여 불화가스가 배출되는 공정에 악영향을 주는 문제를 방지할 수 있다.