PROCESS FOR PRODUCING MESOPHASE PITCH BY HYDROGENATION OF HIGH-TEMPERATURE COAL TAR
    6.
    发明申请
    PROCESS FOR PRODUCING MESOPHASE PITCH BY HYDROGENATION OF HIGH-TEMPERATURE COAL TAR 审中-公开
    通过高温煤焦油加氢生产木质素沥青的方法

    公开(公告)号:WO2013104092A8

    公开(公告)日:2014-08-07

    申请号:PCT/CN2012000451

    申请日:2012-04-06

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

    摘要: Disclosed is a process for producing mesophase pitch by hydrogenation of high-temperature coal tar, comprising removing salts and quinoline insolubles from the high-temperature coal tar to obtain a clear oil; using the clear oil as a hydrogenation feed oil, or pre-distilling the clear oil to obtain a bottom component with a boiling point higher than 230°C and formulating the bottom component into a hydrogenation feed oil; refining the hydrogenation feed oil by catalytic hydrogenation to obtain a refined hydrogenated oil; distilling the refined hydrogenated oil to obtain hydrogenated pitch; subjecting the hydrogenated pitch to thermal condensation polymerisation 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 being susceptible to carbon deposition and coking during the process, and not tending to block the reactor. The product has a high mesophase content, a low softening point and a low impurity content.

    摘要翻译: 公开了一种通过高温煤焦油的氢化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物以获得透明油; 使用透明油作为氢化原料油,或预蒸馏澄清油,得到沸点高于230℃的底部成分,并将底部成分配制成氢化原料油; 通过催化氢化精制氢化原料油,得到精制氢化油; 蒸馏精制氢化油,得到氢化沥青; 使氢化沥青进行热缩聚,得到中间相沥青。 该方法具有诸如易于控制的氢化程度,完全除去杂质,良好的原料流动性,在该过程中不易于碳沉积和焦化的特征,并且不趋于阻止反应器。 该产品具有高的中间相含量,低软化点和低杂质含量。

    PROCESS FOR PRODUCING ALKYLATED AROMATIC COMPOUNDS
    8.
    发明申请
    PROCESS FOR PRODUCING ALKYLATED AROMATIC COMPOUNDS 审中-公开
    生产碱性芳族化合物的方法

    公开(公告)号:WO2015077144A1

    公开(公告)日:2015-05-28

    申请号:PCT/US2014/065675

    申请日:2014-11-14

    申请人: UOP LLC

    IPC分类号: C07C2/86

    摘要: A process for producing alkylated aromatic compounds includes pyrolyzing a coal feed to produce a coke stream and a coal tar stream. The coal tar stream is hydrotreated and the resulting hydrotreated coal tar stream is cracked. A portion of the cracked coal tar stream is separated to obtain a fraction having an initial boiling point in the range of 60°C to 180°C, and an aromatics-rich hydrocarbon stream is extracted by contacting the fraction with one or more solvents. The aromatics-rich hydrocarbon stream is contacted with an alkylating agent to produce an alkylated aromatic stream, or the aromatics-rich hydrocarbon stream is reacted with an aliphatic compound or methanol in the presence of a catalyst to produce a methylated aromatic stream. The alkylated aromatic stream, the methylated aromatic stream, or both are separated into at least a benzene stream, a toluene stream, and a xylenes stream.

    摘要翻译: 制备烷基化芳族化合物的方法包括热解煤进料以产生焦炭流和煤焦油流。 将煤焦油流加氢处理,得到的加氢处理煤焦油流裂化。 将一部分裂化煤焦油流分离,得到初馏点在60℃至180℃范围内的馏分,通过使该馏分与一种或多种溶剂接触来提取富含芳烃的烃物流。 富含芳烃的烃流与烷基化剂接触以产生烷基化芳族物流,或者在催化剂存在下使富含芳烃的烃物流与脂族化合物或甲醇反应,生成甲基化芳族物流。 将烷基化芳族物流,甲基化芳族物流或二者分离成至少一个苯物流,甲苯物流和二甲苯物流。

    PROCESS FOR PYROLYZING COAL USING A RECYCLED HYDROGEN DONOR
    9.
    发明申请
    PROCESS FOR PYROLYZING COAL USING A RECYCLED HYDROGEN DONOR 审中-公开
    使用循环氢气体进行热解煤的方法

    公开(公告)号:WO2015077032A1

    公开(公告)日:2015-05-28

    申请号:PCT/US2014/064204

    申请日:2014-11-06

    申请人: UOP LLC

    IPC分类号: C10B49/02 C10B49/00

    摘要: A process for pyrolyzing coal using a recycled hydrogen donor includes introducing a coal feed to a pyrolysis zone and heating the coal feed to a temperature of 300°C in the absence of hydrogen. A hydrogen donor solvent is introduced to the pyrolysis zone after the coal feed is heated to 300°C, and the temperature of the coal feed and the hydrogen donor solvent is increased to 475°C, while increasing a pressure in the pyrolysis zone to at or above a vapor pressure of the hydrogen donor solvent. At least an aromatic hydrocarbon rich fraction is separated from the coal tar stream and hydrogenated. The hydrogenated aromatic hydrocarbon rich fraction is recycled to the pyrolysis zone as the hydrogen donor solvent.

    摘要翻译: 使用再循环氢供体来对煤进行热解的方法包括将煤进料引入热解区,并在不存在氢的情况下将煤进料加热至300℃的温度。 在将煤供给加热至300℃之后,将氢供体溶剂引入热解区,并将供煤和供氢溶剂的温度升高至475℃,同时将热解区中的压力提高到 或高于氢供体溶剂的蒸气压。 至少一种富含芳烃的级分与煤焦油流分离并氢化。 氢化富芳烃馏分作为氢供体溶剂再循环到热解区。