PROCESSING OF GASIFICATION TARS TO HIGH YIELDS OF BTX

    公开(公告)号:US20170355911A1

    公开(公告)日:2017-12-14

    申请号:US15621596

    申请日:2017-06-13

    Abstract: Embodiments relate generally to systems and method for processing tars to produce benzene, toluene, and xylene (BTX). A method for processing tars may comprise distilling the tars to separate creosotes and pitch; and processing the pitch via hydropyrolysis, including both hydrogenation and hydrocracking functions, to remove heteroatoms and break down polyaromatics in the pitch and produce monoaromatics, such as BTX. A system for processing tars may comprise one or more of the following: an input stream comprising tars feeding into a column; the column configured to separate the tars into one or more creosote streams and a pitch stream; and a reactor (or a series of reactors, or beds within a single reactor), wherein the pitch stream is fed to the reactor along with a stream of hydrogen, wherein the reactor is configured to break down the pitch to produce BTX.

    Claus plant preprocessing systems and methods for removal of ammonia from claus plant feed gases
    2.
    发明授权
    Claus plant preprocessing systems and methods for removal of ammonia from claus plant feed gases 有权
    克劳斯植物预处理系统和从克劳斯植物原料气中除去氨的方法

    公开(公告)号:US09181095B2

    公开(公告)日:2015-11-10

    申请号:US14329725

    申请日:2014-07-11

    CPC classification number: C01B17/0408 C01B25/28

    Abstract: Systems and methods for pre-treatment of acid gas are presented in which ammonium is removed from the acid gas in an absorber that is operated at significantly elevated temperature using dilute phosphoric acid. While seemingly incompatible, absorbing ammonia at high heat in the absorber will allow for production of a diammonium phosphate product that is ultra-low in residual sulfurous compounds and prevent crystallization of phosphate salts due to the increased solubility of the salts in the hot diluted solvent.

    Abstract translation: 提出了用于预处理酸性气体的系统和方法,其中在使用稀磷酸在显着升高的温度下运行的吸收器中从酸性气体中除去铵。 虽然似乎不兼容,但是在吸收器中吸收高热量的氨将允许生产残留的亚硫酸化合物中超低的磷酸二铵产物,并且由于盐在热稀释溶剂中的溶解度增加而防止磷酸盐的结晶。

    Processing of gasification tars to high yields of BTX

    公开(公告)号:US10590349B2

    公开(公告)日:2020-03-17

    申请号:US15621596

    申请日:2017-06-13

    Abstract: Embodiments relate generally to systems and method for processing tars to produce benzene, toluene, and xylene (BTX). A method for processing tars may comprise distilling the tars to separate creosotes and pitch; and processing the pitch via hydropyrolysis, including both hydrogenation and hydrocracking functions, to remove heteroatoms and break down polyaromatics in the pitch and produce monoaromatics, such as BTX. A system for processing tars may comprise one or more of the following: an input stream comprising tars feeding into a column; the column configured to separate the tars into one or more creosote streams and a pitch stream; and a reactor (or a series of reactors, or beds within a single reactor), wherein the pitch stream is fed to the reactor along with a stream of hydrogen, wherein the reactor is configured to break down the pitch to produce BTX.

    CLAUS PLANT PREPROCESSING SYSTEMS AND METHODS FOR REMOVAL OF AMMONIA FROM CLAUS PLANT FEED GASES
    6.
    发明申请
    CLAUS PLANT PREPROCESSING SYSTEMS AND METHODS FOR REMOVAL OF AMMONIA FROM CLAUS PLANT FEED GASES 有权
    植物生长因子植物预处理系统和从植物饲料气体中去除氨的方法

    公开(公告)号:US20150014590A1

    公开(公告)日:2015-01-15

    申请号:US14329725

    申请日:2014-07-11

    CPC classification number: C01B17/0408 C01B25/28

    Abstract: Systems and methods for pre-treatment of acid gas are presented in which ammonium is removed from the acid gas in an absorber that is operated at significantly elevated temperature using dilute phosphoric acid. While seemingly incompatible, absorbing ammonia at high heat in the absorber will allow for production of a diammonium phosphate product that is ultra-low in residual sulfurous compounds and prevent crystallization of phosphate salts due to the increased solubility of the salts in the hot diluted solvent.

    Abstract translation: 提出了用于预处理酸性气体的系统和方法,其中在使用稀磷酸在显着升高的温度下运行的吸收器中从酸性气体中除去铵。 虽然似乎不兼容,但是在吸收器中吸收高热量的氨将允许生产残留的亚硫酸化合物中超低的磷酸二铵产物,并且由于盐在热稀释溶剂中的溶解度增加而防止磷酸盐的结晶。

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