METHOD FOR PRODUCING XYLENE
    13.
    发明公开
    METHOD FOR PRODUCING XYLENE 审中-公开
    生产二甲苯的方法

    公开(公告)号:EP2716736A1

    公开(公告)日:2014-04-09

    申请号:EP12789643.9

    申请日:2012-05-24

    摘要: The present method is a method for producing xylene from feedstock oil having a 10 vol% distillation temperature of 135°C or higher and a 90 vol% distillation temperature of 380°C or lower. This method 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: 本方法是由10体积%蒸馏温度为135℃或更高和90体积%蒸馏温度为380℃或更低的原料油生产二甲苯的方法。 该方法包括使原料油与催化剂接触而生成单环芳香族烃的裂化/重整反应工序,从裂化重整反应工序得到的生成物中分离回收馏分A的分离回收工序 含有10体积%馏出温度75℃以上,90体积%馏出温度140℃以下的含氟单环芳香族烃,含二甲苯的二甲苯馏分和含有10体积%以上的单环芳香族烃的馏分B, 蒸馏温度为145℃以上,且90体积%的蒸馏温度为215℃以下的二甲苯转化工序和使混合工序A和工序B得到的混合馏分与含有 固体酸将混合部分转化成二甲苯。