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    PROCESS FOR PRODUCING MESOPHASE PITCH BY HYDROGENATION OF HIGH-TEMPERATURE COAL TAR
    1.
    发明公开
    PROCESS FOR PRODUCING MESOPHASE PITCH BY HYDROGENATION OF HIGH-TEMPERATURE COAL TAR 审中-公开
    VERFAHREN ZUR HERSTELLUNG VON MESOPHASEN-PECH DURCH HYDRIERUNG VON HOCHTEMPERATURKOHLENTEER

    公开(公告)号：EP2818535A1

    公开(公告)日：2014-12-31

    申请号：EP12865271.6

    申请日：2012-04-06

    申请人： Eco Environmental Energy Research Institute Limite ,  Dalian University of Technology

    发明人： ZHAO, Hongmei ,  QIU, Jieshan ,  XIAO, Jincheng ,  LI, Baoming ,  LV, Junde ,  XIAO, Nan

    IPC分类号： C10C3/02 ,  C10C3/08 ,  C10C3/00

    摘要： A process for producing mesophase pitch from high-temperature coal tar comprises: removing salts and quinoline insoluble fraction from a high-temperature coal tar to obtain a decant oil; using the decant oil as a hydrogenation feedstock, or pre-distilling the decant oil to obtain a residue with a boiling point higher than 230°C and formulating the residue into a hydrogenation feedstock; catalytic hydrorefining the hydrogenation feedstock to obtain a hydrofined oil; distilling the hydrofined oil to obtain hydrogenated pitch; and subjecting the hydrogenated pitch to the thermal polymerization to obtain the mesophase pitch. The process has features such as an easily controllable degree of hydrogenation, complete removal of impurities, good raw material flowability, not tending to form the carbon deposition and the coking during the process, and not tending to jam the reactor. The product has a high content of mesophase pitch, a low softening point and a low impurity content.

    摘要翻译： 从高温煤焦油生产中间相沥青的方法包括：从高温煤焦油中除去盐和喹啉不溶部分，得到滗析油; 使用倾析油作为氢化原料，或者预先蒸馏滗析油，得到沸点高于230℃的残余物，并将残余物配制成氢化原料; 催化加氢精制加氢原料以获得加氢精制油; 蒸馏加氢精制油，得到氢化沥青; 并使氢化沥青进行热聚合以获得中间相沥青。 该方法具有易于控制的氢化程度，完全除去杂质，良好的原料流动性，在生产过程中不会形成碳沉积和焦化，并且不会阻塞反应器。 该产品具有高含量的中间相沥青，低软化点和低杂质含量。