Abstract:
PURPOSE: An adsorption and desorption method of organic-inorganic hybrid nanoporous materials is provided to be able to economically perform a continuous and stable adsorption and desorption process by applying an external electric field to the nanoporous materials. CONSTITUTION: An adsorption and desorption method of organic-inorganic hybrid nanoporous materials comprises the following steps: a step of filling organic-inorganic hybrid nanoporous materials in an adsorption and desorption reactor(ST1); a step of supplying mixed gas to the adsorption and desorption reactor(ST2); and a step of separating a target gas from the mixed gas by applying an electric field to the nanoporous materials within the adsorption and desorption reactor to adsorb the target gas to the nanoporous materials(ST3). The nanoporous material is a crystalline compound which is defined as a porous organic-inorganic polymer compound formed with a coordinate bond of divalent metal ion and dihydroxy terephthalate, contains organic material and inorganic material in a frame structure, and has a porous structure of a molecular size or nanosize. [Reference numerals] (ST1) Fill an adsorption and desorption reactor with organic-inorganic hybrid nanoporous material; (ST2) Supply mixed gas to the adsorption and desorption reactor; (ST3) Separate target gas from the mixed gas by applying electric filed to the nanoporous material and attaching to the nanoporous material
Abstract:
PURPOSE: A method for manufacturing trichlorosilane is provided to obtain plenty of trichlorosilane by using a catalyst on which the pre-set amount or more of silicon is deposited. CONSTITUTION: A reactor(100) is filled with a catalyst(150). Trichlorosilane and hydrogen are provided into the reactor. One of monosilane, silane monochloride, and silane bichloride is provided into the reactor while the reaction of the trichlorosilane and the hydrogen. One of the monosilane, the silane monochloride, and the silane bichloride is repeatedly provided into the reactor by a pre-set time interval. One of the monosilane, the silane monochloride, and the silane bichloride is stopped from being provided, and the amount of silicon is reduced.
Abstract:
본 발명은 고온 다습한 가혹한 분위기에서 나프타의 접촉분해를 통하여 경질올레핀을 제조하는데 사용되는 성형촉매에 관한 것으로, 보다 구체적으로는, 0.01~5.0 wt%의 MnO 2 및 1~15 wt%의 P 2 O 5 가 제올라이트, 클레이 및 무기 산화물에 동시에 담지 되도록 혼합한 슬러리를 분무 건조 및 소성하여 제조되는 경질올레핀 생산용 탄화수소 접촉분해 촉매 및 그 제조방법에 관한 것이다. 본 발명에 따른 촉매는 망간과 인이 제올라이트와 무기 산화물을 동시에 수식함으로써, 얻어진 구형 성형촉매의 수열안정성을 향상시킬 뿐만 아니라, 제올라이트의 산점을 보호하여 나프타와 같은 C 4 이상의 탄화수소 접촉분해시 높은 경질 올레핀 수율을 얻을 수 있으며, 촉매의 제조방법이 간단하여 대량 생산이 용이하고 경제성이 제고되는 효과가 있다. 인, 제올라이트, 망간, 인산염, 접촉분해, 수열안정성, 경질올레핀, 탄화수소, 나프타
Abstract:
PURPOSE: A method for manufacturing metal composite oxide is provided to promote the growth of precursor particles for manufacturing a positive electrode active material, to easily control an average particle diameter, and to increase a production yield. CONSTITUTION: A method for manufacturing metal composite oxide comprises the following steps: injecting a first metal salt solution with nickel and cobalt into a reactor in which distilled water is put; injecting a second metal salt solution having hydrogen ion concentration(pH) 6~12 into the reactor; and precipitating nickel composite hydroxide precursor particles by controlling pH of the whole metal salt solution in 11-13 while injecting NaOH solution and ammonia aqueous solution into the reactor.
Abstract:
본 발명은 N 2 O(아산화질소) 및 NOx(질소산화물) 분해용 제올라이트 촉매 및 이 촉매를 이용하여 오염가스로부터 아산화질소 및 질소산화물의 분해제거방법에 관한 것으로서, 좀 더 상세하게 설명하면, 제올라이트 촉매의 수열안정성을 향상시키기 위하여 N 2 O 및 NOx 에 대한 분해특성이 우수한 분자체에 인과 전이금속 전구체를 수식하여 안정화 시킨 것을 특징으로 한다. 즉, 본 발명은 수열조건 하에서 비활성화되기 쉬운 -Si-OH-Al- 골격을 갖는 분자체에 적절한 양의 전이금속 및 인을 사용하여 수식함으로써 고온 다습한 분위기 하에서도 NOx 및 N 2 O 분해활성을 안정적으로 장시간 유지하도록 하였다. 아산화질소, 질소산화물, 제올라이트, 수열안정성
Abstract:
PURPOSE: A catalyst for hydrocracking crude oil and a method for hydrocracking using the same are provided to reduce energy and processing cost with environment-friendly effects by performing a hydrocracking process in a low temperature and a low pressure conditions. CONSTITUTION: A catalyst for hydrocracking crude oil is the catalyst of a foam shape in which a reactive metal is dipped in a porous carrier. The catalyst for hydrocracking the crude oil has the total pore volume of 0.5 ~ 2.5 cc/g. The catalyst includes an air bubble surface area of 100 ~ 300 m^2/g. The thickness of pore wall of the catalyst is 5 ~ 100 nm. A pore diameter of the catalyst is 30 ~ 500 nm.