Advanced coal upgrading process for a power station
    34.
    发明授权
    Advanced coal upgrading process for a power station 有权
    一个电站先进的煤炭升级过程

    公开(公告)号:US09187697B2

    公开(公告)日:2015-11-17

    申请号:US13148945

    申请日:2010-11-17

    Abstract: A coal or carbonaceous material upgrading process for power station use, the process comprising a number of steps. First comminuting the coal or carbonaceous to a comminuted material. Second pre-treating the comminuted coal with a pulsing single frequency microwave and vacuum to reduce its water and oxygen content; the pre-treating stage being carried out at a temperature of up to 180 C. Third, treating the pre-treated comminuted material with a pulsing single frequency microwave energy under vacuum to optimize the volatile organic materials; the treatment stage being carried out at a temperature of up to 350 C. Next pyrolyzing the treated coal with a pulsing single frequency microwave and vacuum to produce a hot gas and a solid carbon residue; the pyrolyzing stage is carried out at a temperature of up to 720 C. The solid carbon residue can then be separated from the hot gas, the volatile organic materials condensed to produce a liquid hydrocarbon product and a gas product; and the solid material and the gas product fed to a power station to produce electricity therefrom. The microwave energy applied at each of the stages has a single frequency of 100 megahertz to 300 gigahertz, has circular polarisation, and is pulsed at a frequency of 2 to 50 kilohertz. The pre-treatment step, the treatment step, and the pyrolysis step can be done under vacuum.

    Abstract translation: 用于电站使用的煤或碳质材料升级过程,该过程包括若干步骤。 首先将煤或碳质粉碎成粉碎材料。 第二次用脉冲单频微波和真空预处理粉碎的煤,以减少其水和氧含量; 预处理阶段在高达180℃的温度下进行。第三,在真空下用脉冲单频微波能量处理预处理的粉碎材料以优化挥发性有机材料; 处理阶段在高达350℃的温度下进行。接着用脉冲单频微波和真空热处理煤,产生热气和固体碳残渣; 热解阶段可以在高达720℃的温度下进行。然后可以将固体碳残余物与热气体分离,将挥发性有机材料冷凝以产生液体烃产物和气体产物; 并且将固体材料和气体产物供给到发电站以从其产生电力。 在每个级中施加的微波能量具有100兆赫兹到300千兆赫兹的单个频率,具有圆极化,并以2到50千赫兹的频率脉冲。 预处理步骤,处理步骤和热解步骤可以在真空下进行。

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