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    Process for Producing Mesophase Pitch by Hydrogenation of High-temperature Coal Tar
    4.
    发明申请
    Process for Producing Mesophase Pitch by Hydrogenation of High-temperature Coal Tar 有权
    通过高温煤焦油氢化生产中间相沥青的方法

    公开(公告)号：US20150076031A1

    公开(公告)日：2015-03-19

    申请号：US14372006

    申请日：2012-04-06

    Applicant: Hongmei Zhao ,  Jieshan Qiu ,  Kam Shing Philip Siu ,  Baoming Li ,  Junde Steve Lu ,  Nan Xiao

    Inventor： Hongmei Zhao ,  Jieshan Qiu ,  Kam Shing Philip Siu ,  Baoming Li ,  Junde Steve Lu ,  Nan Xiao

    IPC: C10C3/00 ,  C10G67/04 ,  C10C1/18 ,  C10C3/06

    CPC classification number: C10C3/002 ,  C10C1/005 ,  C10C1/16 ,  C10C1/18 ,  C10C1/19 ,  C10C1/205 ,  C10C3/06 ,  C10G1/002 ,  C10G1/06 ,  C10G3/50 ,  C10G31/10 ,  C10G50/00 ,  C10G67/04 ,  Y02P30/20

    Abstract: 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 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.

    Abstract translation: 从高温煤焦油制备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; 催化氢化加氢原料以获得加氢精炼油; 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，不易于形成碳沉积和在该过程期间的焦化，并且不趋于堵塞反应器。 该产品具有高含量的中间相沥青，低软化点和低杂质含量。

    Method of purifying coal tars for use in the production of carbon products
    10.
    发明授权
    Method of purifying coal tars for use in the production of carbon products 失效
    净化煤焦油用于生产碳产品的方法

    公开(公告)号：US4874502A

    公开(公告)日：1989-10-17

    申请号：US220908

    申请日：1988-07-19

    Applicant: Masatoshi Tsuchitani ,  Sakae Naito

    Inventor： Masatoshi Tsuchitani ,  Sakae Naito

    IPC: D01F9/15 ,  C10C1/08 ,  C10C1/16 ,  C10C1/18 ,  C10C3/08 ,  D01F9/155

    CPC classification number: C10C1/08 ,  C10C1/18

    Abstract: The unwanted components from coal tars should be removed at a certain stage of the process for producing homogeneous spinning pitches which are suitable for use in the production of high-performance carbon fibers from coal tars. The unwanted components can be eliminated from coal tars in a very efficient manner by the following procedures: subjecting the coal tars to distillation or flash distillation so as to separate a heavy component having a boiling point higher than a predetermined temperature, dissolving the heavy component in a monocyclic aromatic hydrocarbon solvent, and subjecting the solution to filtration or centrifugation.

    Abstract translation: 在制造均匀的纺丝沥青的过程的某一阶段，应从煤焦油中去除不需要的组分，这些沥青适用于生产来自煤焦油的高性能碳纤维。 可以通过以下步骤以非常有效的方式从煤焦中除去不需要的组分：将煤焦油蒸馏或快速蒸馏，以分离沸点高于预定温度的重组分，将重组分溶解在 单环芳族烃溶剂，并对溶液进行过滤或离心。

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