METHOD FOR PRODUCING XYLENE
    4.
    发明申请
    METHOD FOR PRODUCING XYLENE 有权
    生产XYLENE的方法

    公开(公告)号:US20140221714A1

    公开(公告)日:2014-08-07

    申请号:US14119302

    申请日:2012-05-24

    IPC分类号: C07C2/70

    摘要: A method for producing xylene from feedstock oil includes a cracking/reforming reaction step of bringing the feedstock oil into contact with a catalyst to produce monocyclic aromatic hydrocarbons; a separation/recovery step of separating and recovering, from a product obtained by the cracking/reforming reaction step, a fraction A containing monocyclic aromatic hydrocarbons having a 10 vol % distillation temperature of 75° C. or higher and a 90 vol % distillation temperature of 140° C. or lower, a xylene fraction containing xylene, and a fraction B containing monocyclic aromatic hydrocarbons having a 10 vol % distillation temperature of 145° C. or higher and a 90 vol % distillation temperature of 215° C. or lower; and a xylene conversion step of bringing a mixed fraction obtained by mixing the fractions A and B with each other into contact with a catalyst containing a solid acid to convert the mixed fraction into xylene.

    摘要翻译: 从原料油生产二甲苯的方法包括使原料油与催化剂接触以产生单环芳烃的裂化/重整反应步骤; 从裂解/重整反应步骤得到的产物中分离回收含有10体积%蒸馏温度为75℃以上且90体积%的蒸馏温度的单环芳烃的馏分A 140℃以下的二甲苯馏分和含有10体积%蒸馏温度为145℃以上且90体积%蒸馏温度为215℃以下的单环芳烃的馏分B。 ; 和二甲醚转化步骤,将通过将级分A和B混合得到的混合级分与含有固体酸的催化剂接触,将混合馏分转化成二甲苯。

    METHOD FOR PRODUCING MONOCYCLIC AROMATIC HYDROCARBONS
    9.
    发明申请
    METHOD FOR PRODUCING MONOCYCLIC AROMATIC HYDROCARBONS 有权
    生产单环芳香烃的方法

    公开(公告)号:US20140018585A1

    公开(公告)日:2014-01-16

    申请号:US14007166

    申请日:2012-03-23

    IPC分类号: C07C4/06

    摘要: A method for producing monocyclic aromatic hydrocarbons includes a step of introducing a feedstock oil into a cracking/reforming reactor, bringing the feedstock oil into contact with a catalyst, and causing the feedstock oil to react, a step of purifying and recovering the monocyclic aromatic hydrocarbons separated from the product produced in the reaction step, a step of hydrogenating a heavy fraction separated from the product, and a recycling step of returning a hydrogenation reactant of the heavy fraction to the cracking/reforming reaction step. In the recycling step, the hydrogenation reactant is introduced at a location different from an introduction location of the feedstock oil into the reactor so that a time during which the hydrogenation reactant is in contact with the catalyst in the reactor becomes shorter than a time during which the feedstock oil is in contact with the catalyst in the reactor.

    摘要翻译: 一种制备单环芳烃的方法包括将原料油引入裂解/重整反应器中,使原料油与催化剂接触并使原料油反应的步骤,纯化和回收单环芳烃 与在反应步骤中产生的产物分离,氢化从产物分离的重馏分的步骤和将重馏分的氢化反应物返回到裂化/重整反应步骤的再循环步骤。 在回收步骤中,将氢化反应物引入到不同于原料油的引入位置到反应器中的位置,使得氢化反应物与反应器中的催化剂接触的时间变得比其中 原料油与反应器中的催化剂接触。

    Method for producing monocyclic aromatic hydrocarbons
    10.
    发明授权
    Method for producing monocyclic aromatic hydrocarbons 有权
    单环芳烃的制备方法

    公开(公告)号:US09233892B2

    公开(公告)日:2016-01-12

    申请号:US14007166

    申请日:2012-03-23

    摘要: A method for producing monocyclic aromatic hydrocarbons includes a step of introducing a feedstock oil into a cracking/reforming reactor, bringing the feedstock oil into contact with a catalyst, and causing the feedstock oil to react, a step of purifying and recovering the monocyclic aromatic hydrocarbons separated from the product produced in the reaction step, a step of hydrogenating a heavy fraction separated from the product, and a recycling step of returning a hydrogenation reactant of the heavy fraction to the cracking/reforming reaction step. In the recycling step, the hydrogenation reactant is introduced at a location different from an introduction location of the feedstock oil into the reactor so that a time during which the hydrogenation reactant is in contact with the catalyst in the reactor becomes shorter than a time during which the feedstock oil is in contact with the catalyst in the reactor.

    摘要翻译: 一种制备单环芳烃的方法包括将原料油引入裂解/重整反应器中,使原料油与催化剂接触并使原料油反应的步骤,纯化和回收单环芳烃 与在反应步骤中产生的产物分离,氢化从产物分离的重馏分的步骤和将重馏分的氢化反应物返回到裂化/重整反应步骤的再循环步骤。 在回收步骤中,将氢化反应物引入到不同于原料油的引入位置到反应器中的位置,使得氢化反应物与反应器中的催化剂接触的时间变得比其中 原料油与反应器中的催化剂接触。