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    • 10. 发明申请
    • Aromatic alkylation process
    • 芳香烷基化工艺
    • US20110137099A1
    • 2011-06-09
    • US12653043
    • 2009-12-08
    • Ashim Kumar GhoshPamela HarveyNeeta Kulkarni
    • Ashim Kumar GhoshPamela HarveyNeeta Kulkarni
    • C07C2/66
    • C07C2/864C07C2529/40Y02P20/52C07C15/08
    • In a process for the alkylation of aromatic compounds an aromatic compound; an alkylating agent; hydrogen, an inert gas or a mixture there; and steam is contacted with a shape-selective zeolite catalyst in a reactor. Hydrogen, an inert gas or a mixture thereof is introduced into the reactor which is at a temperature of about 200° C., the alkylating agent is introduced into the reactor which is at a temperature of about 480° C. and the aromatic compound may be introduced into the reactor which is at a temperature of about 200° C. or about 480° C. and steam may be introduced into the reactor which is at a temperature of about 200° C. or about 480° C. This process is applicable for toluene methylation with a shape-selective catalyst of an aluminosilicate zeolite, such as ZSM-5 which has been modified with phosphorus, to produce para-xylene (p-xylene).
    • 在芳族化合物的烷基化方法中,芳族化合物; 烷基化剂; 氢气,惰性气体或其中的混合物; 并在反应器中使蒸汽与形状选择性沸石催化剂接触。 将氢气,惰性气体或其混合物引入到约200℃的反应器中,将烷基化剂引入反应器中,该反应器的温度为约480℃,芳族化合物可以 被引入到反应器中,该反应器的温度为约200℃或约480℃,并且可将蒸汽引入反应器中,该反应器的温度为约200℃或约480℃。该方法为 适用于用磷硅烷改性的ZSM-5等铝硅酸盐沸石形状选择性催化剂进行甲苯甲基化,生成对二甲苯(对二甲苯)。