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    • 5. 发明申请
    • METHOD FOR HOT AND SUPERCRITICAL WATER OXIDATION OF MATERIAL USING SPECIFIC REACTANTS
    • 使用特定反应物的材料的热超临界水氧化方法
    • WO1997034660A1
    • 1997-09-25
    • PCT/US1997004443
    • 1997-03-19
    • SRI INTERNATIONALROSS, David, S.JAYAWEERA, IndiraBOMBERGER, David, C.LEIF, Roald, N.
    • SRI INTERNATIONAL
    • A62D03/00
    • A62D3/20A62D2101/22A62D2101/28C02F1/722C02F11/086C02F2101/36Y10S210/908Y10S210/909Y10S210/915
    • This invention relates to a process for the decomposition of material selected from halogenated organic compounds, to compounds which are environmentally acceptable, or are amenable to further degradation by conventional disposal systems to produce environmentally acceptable products, which process comprises: (a) conveying an aqueous solution or an aqueous slurry of material into a reaction zone capable of withstanding the temperatures and pressures of decomposition of the material; (b) contacting the material in the reaction zone with aqueous sodium carbonate as a reactant in an amount effective to decompose the material under hydrothermal oxidation conditions of between about 300 and 600 DEG C and a pressure of between about 10 and 400 atmospheres for between 0.01 and 120 min wherein the specific reactant, a carbonate such as sodium carbonate, at the reaction conditions is present at about 10 % or less as a water-soluble salt as compared to the solubility of the salt at ambient conditions wherein the specific reactant is essentially present as a solid and the oxidation occurs under heterogeneous conditions, wherein the process occurs in the presence of a gaseous oxidant wherein said oxidant is present in an amount of between about 0.01 and 50 % by weight of the material; (c) producing about 99 % or greater of the decomposition of the material, or 99 % or greater conversion of the material to compounds which are environmentally acceptable or to compounds which are amendable to further degradation; and (d) optionally degrading further the compounds produced in step (c) by reaction to environmentally acceptable products. Preferably, the specific reactant is sodium carbonate and the oxidant is oxygen or air. Preferably, the halogenated organic compound is selected from polychlorobiphenyl, polybromobiphenyl mono-chlorobenzodioxin or poly-chlorobenzodioxin compounds.
    • 本发明涉及一种将选自卤代有机化合物的材料分解成环境可接受的化合物或通过常规处理系统进一步降解以生产环境可接受的产品的方法,该方法包括:(a)输送水性 溶液或材料的水性浆料进入能够承受材料分解的温度和压力的反应区; (b)使反应区中的材料与碳酸钠水溶液作为反应物接触,其量可以有效地在约300-600℃的水热氧化条件下分解该材料,在约10-400个大气压之间压力为0.01 和120分钟,其中在反应条件下的特定反应物碳酸酯如碳酸钠在水溶性盐中的存在量为约10%或更少,与盐在环境条件下的溶解度相比,其中特定反应物基本上是 作为固体存在并且氧化发生在非均相条件下,其中该方法在气态氧化剂存在下进行,其中所述氧化剂的存在量为所述材料重量的约0.01%至50%; (c)产生约99%或更多的材料分解,或99%或更多的材料转化为环境可接受的化合物或可修饰为进一步降解的化合物; 和(d)通过与环境可接受的产物反应,任选进一步降解步骤(c)中产生的化合物。 优选地,特定反应物是碳酸钠,氧化剂是氧气或空气。 优选地,卤代有机化合物选自聚氯联苯,聚溴联苯一氯代二氯苯或聚氯苯并二恶英化合物。