Abstract:
본 발명은 황화수소 흡착을 위한 산화구리-산화아연/환원된 그래핀 옥사이드 화합물의 제조 방법에 관한 것으로, 특히 산화구리과 산화아연의 비율을 조정하여 탈황효율을 높인 제조 방법에 관한 것이다. 본 발명은, 흑연을 산과 산화제로 산화 후 박리시킨 그래핀 옥사이드를 준비하는 단계; 상기 그래핀 옥사이드에 에틸렌 글리콜(ethylene glycol)을 혼합 후 초음파 진동을 이용한 1차 분산 단계; 상기 1차 분산 단계를 거친 혼합액을 수산화 나트륨(sodium hydroxide, NaOH) 수용액과 혼합 후, 초음파 진동을 이용한 2차 분산 단계; 상기 2차 분산 단계를 거친 혼합액에 아연 아세테이트(Zinc Acetate, ZnAc) 수용액과 구리 아세테이트(Copper Acetate, CuAc)를 정해진 비율로 첨가하여 자석교반기로 혼합하는 단계; 상기 자석교반기로 혼합하는 단계를 거친 혼합액에 환원제를 첨가한 후 열처리하여 환원하는 단계; 상기 열처리하여 환원하는 단계를 거친 혼합액을 냉각하고 증류수로 세척한 후 냉동 진공건조기에서 건조시키는 단계를 포함하는, 산화구리-산화아연/환원된 그래핀 옥사이드 화합물의 제조 방법을 제공하여, 고온에 따른 산화아연 입자들의 뭉침현상을 방지하고, 황화수소 흡착율이 가장 좋은 산화구리-산화아연의 비율을 조정함으로써, 상기 화합물의 황화수소 흡착율을 극대화시킨다.
Abstract:
본원은 바륨크롬계 산화물로 코팅된 Ba 1-x Sr x Co 1-y Fe y O 3-δ 의 조성을 갖는 페롭스카이트형 이온전도성 산소 분리막, 그 제조방법, 상기 막을 이용한 산소 분리 공정을 제공한다. 바륨크롬계 산화물로 코팅된 본원의 막은 코팅되지 않은 분리막과 비교하여 현저히 향상된 산소투과도 및 열적 안정성을 가져 이산화탄소를 함유하는 공기로부터 산소 분리에 등에 유용하게 사용될 수 있다.
Abstract:
Disclosed are an imidazolium-based ionic liquid functionalized with an amine and a method for a separation of carbon dioxide using the same. The imidazolium-based ionic liquid functionalized with the amine according to the present invention has a superior carbon dioxide absorption capacity. The absorbed carbon dioxide can be easily absorbed/desorbed by heating. The liquid of the present invention provides use convenience and can be effectively used in collecting CO2 since the liquid has a selectivity, a thermal stability, a repeatable usability, and a long lifespan.
Abstract:
The present invention relates to ionic liquid using an aromatic cation material for separating carbon dioxide and, more specifically, to ionic liquid which improves carbon dioxide absorption capacity, initial absorption rates, and reclaimable performance compared with existing ionic liquid. The ionic liquid of the present invention is selected among 1-methylimidazolium, 1-ethylimidazolium, and 1-butylimidazolium.
Abstract:
본 발명은 이산화탄소 흡수제에 관한 것으로서, 구체적으로는 이산화탄소 흡수능이 우수하고 반응속도가 빠르며, 이산화탄소 포집 과정에서 재생에너지를 크게 저감할 수 있는 흡수제 및 이를 이용한 이산화탄소 포집 방법에 관한 것이다. 본 발명의 적절한 실시 형태에 따르면, 전체 중량 대비 모노에탄올아민 10~70wt%, 디에탄올아민 10~40wt% 및 트리에탄올아민 5~75wt%을 포함하는 이산화탄소 흡수제를 제공한다.
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 vanadium based alloy hydrogen separating membrane doped with yttrium and a hydrogen separating method using the same are provided to improve a mechanical stability at high temperature as well as a high hydrogen transmittance and have an excellent economical efficiency by not using palladium. CONSTITUTION: A vanadium based alloy hydrogen separating membrane doped with yttrium is doped with the yttrium of a below formula 1. V_100-x-yM_xY_y(I). In the above formula, M is a metal or a transition metal, and x is 0 ≤ x ≤ 20% and y is 0
Abstract:
A unit reaction block that can obtain a high efficient chemical heat pump for cooling and heating by smoothly contacting an inorganic salt as a reaction medium with an ammonia gas as a drive medium in a chemical heat pump and efficiently transferring heat generated during the chemical reaction to the outside, a manufacturing method of the unit reaction block, and a mounting method of the unit reaction block on the chemical heat pump are provided. A thermal conductive unit reaction block for a chemical heat pump is characterized in that a supporting block is inserted between reaction blocks containing a metal chloride in surfaces thereof. The reaction blocks containing the metal chloride in the surfaces thereof are prepared a step(1) of mixing a therm conductive powder material with a binder, and compressing the mixture under high temperature and high pressure to obtain a compressed material, and a step(2) of applying a metal chloride as an adhesive onto a surface of the compressed material, and removing the adhesive. The metal chloride is at least one selected from ZnCl2, CuCl2, SnCl2, PbCl2, BaCl2, CaCl2, SrCl2, MnCl2, FeCl2, CoCl2, MgCl2, and NiCl2. A manufacturing method of a thermal conductive unit reaction block(13) for a chemical heat pump comprises inserting a supporting block(2) having a binder sprayed on the surface thereof between reaction blocks(1) containing a metal chloride in surfaces thereof, and compressing and drying the supporting block inserted between the reaction blocks.
Abstract:
PURPOSE: A method for manufacturing an adsorbent pellet for wastewater treatment by using highly unburned carbon fly ash is provided to recycle highly unburned carbon fly ash generated from thermoelectric power plants as byproduct. CONSTITUTION: The method for manufacturing an adsorbent pellet comprises the steps of blending 60-70 wt.% of raw material, 15-20 wt.% of coal tar pitch with a softening point of higher than 85°C, 2-3 wt.% of pitch solvent material, 2-3 wt.% of binder, 4-6 wt.% of catalyst and 8-12 wt.% of water; mixing above mixture for 30-60 minutes at 50-60°C; pelletization of above mixture; carbonization of prepared pellet in the temperature range of 550 to 650°C for 30-90 minutes as supplying nitrogen in an amount of 10 to 30 mL/min in rotary kiln; supplying hot steam that is preheated to the temperature range of 150 to 220°C in an amount of 1g-hot steam/hr·g-coal; and slowly cooling the pellet as supplying nitrogen gas in an amount of 10 to 30 mL/min.
Abstract:
본 발명은 반응활성화제 첨가에 의한 제 3급 알칸올아민의 이산화탄소 흡수성능을 개선한 흡수제에 관한 것으로, 그 목적은 기존의 이산화탄소 흡수용 화학흡수제로 사용되고 있는 제 3급 알칸올아민에 반응활성화제를 첨가함으로써, 이산화탄소의 흡수속도 및 흡수양을 증진시킨 혼합 이산화탄소 흡수제를 제공하는데 있다. 본 발명의 흡수제는 한가지 이상의 제 3급 알칸올아민과 반응활성화제의 혼합 수용액으로써, 이산화탄소의 흡수속도를 18∼290%, 이산화탄소의 흡수능을 4∼238% 향상시킬 수 있는 흡수제이다.