메탄의이산화탄소개질반응용니켈-알루미나에어로젤촉매및이의제조방법

    公开(公告)号:KR100264157B1

    公开(公告)日:2001-04-02

    申请号:KR1019980009087

    申请日:1998-03-17

    Abstract: PURPOSE: A method is provided to manufacture a nickel-alumina mixing aerogel catalyst by supporting nickel onto alumina aerogel differently from an existing alumina supported nickel catalyst or using sol-gel process. CONSTITUTION: The method for manufacturing an alumina aerogel support for a supported nickel-alumina catalyst comprises a first step of dissolving aluminum alkoxide into a heated alcohol solvent; a second step of forming a transparent sol by performing hydrolysis by adding water, acid and alcohol into the solution prepared in the first step; a third step of forming a gel by adding water contained alcohol into the sol after cooling the sol formed in the second step to an ordinary temperature; a fourth step of aging the gel formed in the third step; a fifth step of supercritical drying the gel aged in the fourth step; and a sixth step of primary heat treating the gel dried in the fifth step in an inert atmosphere, and secondary heat treating the primary heat treated gel in an oxygen atmosphere in an air or oxygen atmosphere.

    메탄의 이산화탄소 개질반응용 알루미나 에어로젤 담체 및이를 이용한 니켈-알루미나 촉매의 제조 방법
    82.
    发明公开
    메탄의 이산화탄소 개질반응용 알루미나 에어로젤 담체 및이를 이용한 니켈-알루미나 촉매의 제조 방법 失效
    用于改性甲烷二氧化碳的氧化铝空气载体和使用空气载体的镍 - 镍氧化物催化剂的生产方法

    公开(公告)号:KR1020000030023A

    公开(公告)日:2000-05-25

    申请号:KR1020000002165

    申请日:2000-01-18

    CPC classification number: B01J21/04 B01J23/755

    Abstract: PURPOSE: A production method of a catalyst of nickel class is provided to remarkably increase a life span as having an excellent reaction activity using a sol-gel method and a supercritical desiccation method. CONSTITUTION: An aerogel mixed with nickel-alumina is produced by the steps of dissolving aluminum alkoxide in alcohol solvent heated, forming a transparent brush by a partial hydrolysis, forming a gel in a room temperature, maturing the gel, drying the gel in a supercritical drying method and treating the gel with heat. In here, the synthetic gas is continuously produced by the steps of filling the catalyst in a reactor using a reactor of flowing upward, inputting hydrogen and nitrogen, pre-treating at 600-800°C of a reaction temperature, stopping supplying hydrogen, adding nitrogen to purge hydrogen, and supplying carbon dioxide and methane material which is reacting material with nitrogen. The catalyst used consists of 1 to 40% of nickel and the rest of alumina.

    Abstract translation: 目的:提供镍类催化剂的制造方法,以使溶胶凝胶法和超临界干燥法具有优异的反应活性,显着延长寿命。 构成:通过将醇铝溶解在加热的醇溶剂中,通过部分水解形成透明刷子,在室温下形成凝胶,熟化凝胶,以超临界的方式干燥凝胶的步骤产生与镍 - 氧化铝混合的气凝胶 干燥方法并用热处理凝胶。 在这里,合成气体通过以下步骤连续生产:使用向上流动的反应器,输入氢和氮,在600-800℃预处理反应温度,停止供应氢气,加入 氮气以净化氢气,并将与材料反应的二氧化碳和甲烷物质供应给氮气。 所使用的催化剂由1%至40%的镍和其余的氧化铝组成。

    방향족 니트로화합물의 환원반응용 합금촉매
    83.
    发明授权
    방향족 니트로화합물의 환원반응용 합금촉매 失效
    用于芳香硝基化合物的合金催化剂

    公开(公告)号:KR1019930005304B1

    公开(公告)日:1993-06-17

    申请号:KR1019890014415

    申请日:1989-10-06

    Inventor: 박태진 서동진

    Abstract: The alloy catalyst obtained by supporting palladium-ruthenium alloy on the carbon carrier is avaible to liquid-phase reducting aromatic nitro compund. The catalyst is prepared by (1) adding palladium chloride and hydrochloric acidic salt of ruthenium into the solution composed of concentrated hydrochloric acid and distilled water, (2) adding activated carbon and sodium carbonate solution into the mixture, and then procipitating the metal salts on the activated carbon, (3) reducing th metal salts with saturated formaldehyde solution, and (4) washing, filtering, drying and pulverizing the production. The weight ratio of ruthenium to total metal component is below 20 wt.%.

    Abstract translation: 通过在碳载体上负载钯 - 钌合金获得的合金催化剂可用于液相还原芳香族硝基化合物。 催化剂的制备方法是:(1)将氯化钯和盐酸盐酸盐加入到由浓盐酸和蒸馏水组成的溶液中,(2)向混合物中加入活性炭和碳酸钠溶液,然后将金属盐 活性炭,(3)用饱和甲醛溶液还原金属盐,(4)洗涤,过滤,干燥和粉碎生产。 钌与总金属成分的重量比低于20重量%。

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