Abstract:
본 발명은 플라즈마-촉매를 이용한 메탄 전환반응에 있어서, 단순히 촉매의 직경을 조절함으로써 종래와 같이 플라즈마 파라미터 제어 등의 복잡한 조작 없이도 수소(H 2 ) 및 C 2 ~C 4 올레핀과 같은 생성물을 효율적으로 생산할 수 있다. 이와 동시에 플라즈마 존재 하의 반응에 필요한 전기에너지를 감소할 수 있다는 점에서 에너지 효율적이다.
Abstract:
The present invention relates to a device for performing C-H bond cleavage using a plasma-catalyst; and to a method for manufacturing hydrogen (H_2) and/or hydrocarbon having two or more carbon atoms. The present invention increases the conversion rate of methane by using inert gas as carrier gas and using a gas separation membrane module in C-H bond cleavage reaction. Also, the present invention enables an economical process by separating and recovering inert gas among discharged gas and reusing the inert gas.
Abstract:
Carbon dioxide absorbent containing a hetero metallic oxide porous material formed by uniformly mixing carbon dioxide absorbing metallic oxides with support metallic oxides is provided. Also, a manufacturing method of carbon dioxide absorbent, which comprises a step of forming a mixed solution which a precursor of carbon dioxide absorbing metallic oxides and a precursor of support metallic oxides are mixed; and a step of obtaining a precipitate by making the mixed solution react by a liquid-phase method; and a step of obtaining a hetero metallic oxide porous material by firing the precipitate, is provided. [Reference numerals] (AA) Start; (BB) End; (S1) Forming a mixed solution which a precursor of carbon dioxide absorbing metallic oxides and a precursor of support metallic oxides are mixed; (S2) Obtaining a precipitate by making the mixed solution react by a liquid-phase method; (S3) Obtaining a hetero metallic oxide porous material by firing the precipitate
Abstract:
The present invention is to provide a method for producing high silica zeolite using a recovered silica filtrate, and a high silica zeolite produced by the method. To this end, the method of the present invention comprises the steps of: preparing agglomerated silica which is solated from a silica filtrate containing metallic salts (Step 1); filtering and washing the agglomerated silica which is solated in Step 1 to prepare a silica cake without the metallic salts (Step 2); peptizing the silica cake to prepare a silica sol (Step 3); and preparing a high silica zeolite by using the silica sol prepared in Step 3 as a silica source (Step 4). Also, the present invention provides a high silica zeolite which is prepared from a recovered silica filtrate by the foregoing method and has an Si/Al molar ratio of 5 or higher. According to the present invention, the zeolite is produced by recycling the recovered silica filtrate, thereby providing a method for producing high silica zeolite whose processing steps are economical and production costs and time are reduced.
Abstract:
본 발명은 할로겐족 산성가스가 함유된 과불화 화합물 분해용 촉매 및 이의 제조방법을 제공한다. 본 발명에 의한 과불화 화합물 분해용 Ru-P-Al 삼성분 촉매는 할로겐족 산성가스를 함유하는 과불화 화합물을 분해제거함에 있어 우수한 분해 효과 및 내구성을 나타내므로 반도체 제조 산업에서부터 LCD 공정 현장에 이르기까지 과불화 화합물의 세정제, 에칭제 및 용매 등을 분해하는 목적으로 사용될 수 있고, 또한, F 2 , Cl 2 , Br 2 등과 같은 할로겐족 산성 가스를 사용하는 공정에서 배출되는 과불화 화합물을 분해 제거하는데 유용하게 사용될 수 있다.
Abstract:
PURPOSE: A method for manufacturing ZSM-5 under fluoride ions is provided to implement manufacturing processes without the limitation of alkali concentration and the adjustment of synthesizing time and temperature. CONSTITUTION: A method for manufacturing ZSM-5 under fluoride ions includes the following: 100 mol of SiO_2, 10-26 mol of Na_2O, 0.2-5 mol of Al_2O_3, 1000-4000 mol of H_2O, 0.1-5 mol of F^- are mixed by mixing a silica source, an alumina source, a fluorine source, a neutralizing agent, and water. A hydrothermal synthesizing process is implemented at a temperature between 100 and 200 Celsius degrees for 6 to 72 hours. The silica source is silica sol, water glass, or sodium silicate. The fluorine source is one selected from a group including NaF, NH_4F, NH_4HF_2, HF, Na_2SiF_6, and (NH_4)_2SiF_6. The alumina source is one selected from a group including sodium aluminate, aluminum nitrate, aluminum chloride, aluminum acetate, aluminum sulfate, aluminum isopropoxide, and aluminum acetylacetonate. The neutralizing agent is one selected from a group including hydrochloric acid, nitric acid, phophoric acid, sulfuric acid and aluminum sulfate.
Abstract translation:目的:提供在氟离子下制造ZSM-5的方法,以实现制造过程,而不受碱浓度的限制和合成时间和温度的调节。 构成:在氟离子下制备ZSM-5的方法包括:100mol SiO 2,10-26mol Na 2 O,0.2-5mol Al 2 O 3,1000-4000mol H 2 O,0.1-5mol F 2 - 通过混合二氧化硅源,氧化铝源,氟源,中和剂和水混合。 水热合成过程在100至200摄氏度之间的温度下进行6至72小时。 二氧化硅源是二氧化硅溶胶,水玻璃或硅酸钠。 氟源是从包括NaF,NH4F,NH_4HF_2,HF,Na_2SiF_6和(NH4)2SiF_6的组中选择的一种。 氧化铝源选自包括铝酸钠,硝酸铝,氯化铝,乙酸铝,硫酸铝,异丙醇铝和乙酰丙酮铝的组。 中和剂是选自盐酸,硝酸,磷酸,硫酸,硫酸铝等的组合物。
Abstract:
본 발명은 수열안정성을 갖는 다공성 분자체 촉매 및 그 제조방법에 관한 것으로서, -Si-OH-Al- 골격을 갖는 분자체, 물-불용성(water-insoluble) 금속염 및 인산 화합물을 포함하는 원료 혼합물의 수분 증발에 의한 생성물로 이루어지는 것을 특징으로 한다. 본 발명에 따른 촉매는 고온 다습한 분위기에 놓여 있어도 물리, 화학적 안정성이 유지되어 접촉분해 반응, 이성화 반응, 알킬화 반응, 에스테르화 반응을 비롯하여 여러 종류의 산화/환원 반응 등의 불균일 촉매 반응에서 고온 다습한 가혹한 공정환경에서 사용시에도 우수한 촉매 활성을 나타낸다. 수열안정성, 다공성 분자체 촉매, 인산 화합물, 물-불용성 금속염, 불균일 촉매