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    • 1. 发明公开
    • PROCESS FOR PRODUCING DIMETHYL ETHER
    • Verfahren zur Herstellung vonDimethyläther。
    • EP0591538A1
    • 1994-04-13
    • EP92923527.3
    • 1992-11-11
    • FUJIMOTO, KaoruNKK CORPORATION
    • FUJIMOTO, KaoruSHIKADA, TsutomuYAMAOKA, YojiroSUMIGAMA, Takashi
    • C07C43/04C07C41/01C07C41/09B01J23/26B01J23/80B01J23/86B01J29/06
    • C07C41/01C07C43/043
    • A process for producing dimethyl ether from a gaseous mixture comprising carbon monoxide, hydrogen and/or steam, and optionally further carbon dioxide, wherein use is made of either a catalyst prepared by pulverizing a catalytic mixture comprising at least zinc oxide, copper or chromium oxide, and aluminum oxide, compacting the mixture on a high-pressure press, and again pulverizing the compacted mixture, or a catalytic mixture comprising at least zinc oxide, copper oxide and alumina in the form of a slurry suspended in a solvent. This process gives dimethyl ether in a high yield, allows a high conversion of water formed by the reaction into hydrogen, and is free from the problem of clogging caused by the catalyst, and no mechanical strength is required of the catalyst. The process has further advantages such that the carbon monoxide to hydrogen ratio can be widely varied, that the reaction can be conducted even in the presence of carbon dioxide with high concentration, and impurities and catalyst poison little affect the reaction.
    • 一种从包含一氧化碳,氢气和/或蒸汽的气体混合物和任选的另外的二氧化碳生产二甲醚的方法,其中使用通过粉碎至少包含氧化锌,铜或铬氧化物的催化混合物制备的催化剂 和氧化铝,在高压压机上压实混合物,再次粉碎压实的混合物,或至少包含氧化锌,氧化铜和氧化铝的悬浮在溶剂中的浆料形式的催化混合物。 该方法以高产率提供二甲醚,允许将通过反应形成的水的高转化率转化为氢气,并且不存在由催化剂引起的堵塞的问题,并且催化剂不需要机械强度。 该方法具有能够广泛变化的一氧化碳与氢的比例的优点,即使在高浓度的二氧化碳的存在下也能够进行反应,并且杂质和催化剂毒性对反应几乎没有影响。
    • 7. 发明申请
    • PROCESS FOR PRODUCING DIMETHYL ETHER
    • 生产二甲醚的方法
    • WO1993010069A1
    • 1993-05-27
    • PCT/JP1992001467
    • 1992-11-11
    • NKK CORPORATIONFUJIMOTO, KaoruSHIKADA, TsutomuYAMAOKA, YojiroSUMIGAMA, Takashi
    • NKK CORPORATION
    • C07C43/04
    • C07C41/01C07C43/043
    • A process for producing dimethyl ether from a gaseous mixture comprising carbon monoxide, hydrogen and/or steam, and optionally further carbon dioxide, wherein use is made of either a catalyst prepared by pulverizing a catalytic mixture comprising at least zinc oxide, copper or chromium oxide, and aluminum oxide, compacting the mixture on a high-pressure press, and again pulverizing the compacted mixture, or a catalytic mixture comprising at least zinc oxide, copper oxide and alumina in the form of a slurry suspended in a solvent. This process gives dimethyl ether in a high yield, allows a high conversion of water formed by the reaction into hydrogen, and is free from the problem of clogging caused by the catalyst, and no mechanical strength is required of the catalyst. The process has further advantages such that the carbon monoxide to hydrogen ratio can be widely varied, that the reaction can be conducted even in the presence of carbon dioxide with high concentration, and impurities and catalyst poison little affect the reaction.
    • 一种从包含一氧化碳,氢气和/或蒸汽以及任选的另外的二氧化碳的气体混合物生产二甲醚的方法,其中使用通过粉碎至少包含氧化锌,铜或铬氧化物的催化混合物制备的催化剂 和氧化铝,在高压压机上压实混合物,再次粉碎压实的混合物,或至少包含氧化锌,氧化铜和氧化铝的悬浮在溶剂中的浆料的催化混合物。 该方法以高产率提供二甲醚,允许将通过反应形成的水的高转化率转化为氢气,并且不存在由催化剂引起的堵塞的问题,并且催化剂不需要机械强度。 该方法具有能够大幅度变化的一氧化碳与氢的比例,即使在高浓度的二氧化碳的存在下也能够进行反应,并且杂质和催化剂的毒性对反应几乎没有影响。
    • 8. 发明专利
    • PRODUCTION OF SYNTHESIS GAS
    • JP2000313604A
    • 2000-11-14
    • JP12258299
    • 1999-04-28
    • NIPPON KOKAN KKFUJIMOTO KAORU
    • SHIKADA TSUTOMUONO YOTAROFUJIMOTO KAORU
    • C01B3/38B01J23/755
    • PROBLEM TO BE SOLVED: To prevent the deactivation of catalyst and stably produce synthesis gas over a long period by separately introducing oxygen and a hydrocarbon to the inlet side of a fluidized bed of a catalyst for the production of synthesis gas from a gas containing a hydrocarbon, carbon dioxide gas and oxygen. SOLUTION: The catalyst is preferably a solid solution composed of nickel oxide and magnesium oxide. Silica, etc., can be used as a carrier for the catalyst. The particle diameter of the catalyst is preferably about 0.1-500 μm. The hydrocarbon to be used as a raw material is methane, 2-5C hydrocarbons, their mixture, natural gas, LPG, etc. Air can be used as the oxygen in addition to pure oxygen. The hydrocarbon, carbon dioxide gas and oxygen gas are blown into a reactor from a part below the fluidized bed and, in the present process, oxygen of an amount necessary for keeping the reaction temperature is introduced separately from hydrocarbon into the reactor from a part below the fluidized bed. The reaction temperature is 600-1000 deg.C, the reaction pressure is 1-100 atm and the contacting time is 0.1-10 g-cat.h/mol. The yield of synthesis gas is >=50%.