PROPANE PRODUCTION METHOD AND PROPANE PRODUCTION APPARATUS

    公开(公告)号:US20170349506A1

    公开(公告)日:2017-12-07

    申请号:US15523910

    申请日:2016-01-21

    摘要: A propane production method includes a hydrogenation reaction step of hydrogenation-reacting crude propylene and hydrogen in a presence of a catalyst to obtain gaseous crude propane containing impurities; and an impurity removal step of removing the impurities contained in the gaseous crude propane obtained in the hydrogenation reaction step to obtain purified propane. The impurity removal step includes an adsorptive removal stage of adsorbing and removing water, ethane and propylene contained as impurities in the gaseous crude propane by adsorption treatment in which the gaseous crude propane is brought into contact with an adsorbent, and a separation removal stage of separating and removing hydrogen, oxygen, nitrogen and methane contained as impurities in the crude propane after the adsorption treatment by partial condensation or distillation of crude propane after the adsorption treatment in the adsorptive removal stage.

    Process for producing styrene-, methylstyrene- and ethylbenzene-free C6-C9 aromatic hydrocarbon blends
    10.
    发明授权
    Process for producing styrene-, methylstyrene- and ethylbenzene-free C6-C9 aromatic hydrocarbon blends 有权
    生产苯乙烯,甲基苯乙烯和乙基苯的C6-C9芳族烃共混物的方法

    公开(公告)号:US09067846B2

    公开(公告)日:2015-06-30

    申请号:US13986804

    申请日:2013-06-07

    IPC分类号: C07C5/03 C07C5/05

    摘要: Various substantially styrene-, methylstyrene- and ethylbenzene-free C6-C9 aromatic hydrocarbon blends are produced from a hydrocarbon feed stream containing C5-C9 aromatic hydrocarbons including styrene, methylstyrene and sulphur compounds by first separating the stream into a distillate containing C5-C7 hydrocarbons, and a bottoms fraction containing C8 and C9 hydrocarbons; and converting the styrene and methylstyrene to their corresponding ethers by reacting with a C1-C3 lower alcohol in the presence of a selective acidic etherification catalyst. The effluent may be sent to a gasoline pool for blending or the effluent is separated by distillation into an ether stream and either a C8 or a C8-C9 aromatic hydrocarbon rich stream. The C5-C7 distillate is hydrogenated.

    摘要翻译: 各种基本上苯乙烯,甲基苯乙烯和乙基苯的C 6 -C 9芳族烃共混物是由包含苯乙烯,甲基苯乙烯和硫化合物的C 5 -C 9芳烃的烃进料流产生的,首先将料流分离成含有C5-C7烃的馏出物 和含有C8和C9烃的塔底馏分; 并通过在选择性酸性醚化催化剂存在下与C1-C3低级醇反应,将苯乙烯和甲基苯乙烯转化为相应的醚。 流出物可以被送到用于混合的汽油池中,或者通过蒸馏将流出物分离成醚流和C8或C8-C9富含芳烃的料流。 C5-C7馏出物被氢化。