Process for obtaining ethylene from ethanol
    2.
    发明授权
    Process for obtaining ethylene from ethanol 失效
    从乙醇中获得乙烯的方法

    公开(公告)号:US4670620A

    公开(公告)日:1987-06-02

    申请号:US902011

    申请日:1986-08-28

    IPC分类号: C07C1/24

    CPC分类号: C07C1/24 C07C2529/40

    摘要: This invention relates to a process for obtaining ethylene from anhydrous or aqueous ethanol by means of a catalyst of the zeolite type containing a silicate of a metal M1 having a valence of 3 and 4 and a tetraedric coordination and containing possibly another charge compensating metal M2 selected among the elements of the Ia, Ib, IIa, IIb, IIIa, IIIb, IVa, IVb, Va, VIb, VIIb and VIII groups of the Mendeljev Table. As examples of M2 metals, the alkaline metals, the alkaline-earth metals and the lanthanides may be cited.According to the invention, anhydrous or aqueous ethanol is contacted with a catalyst of the above type, in which the ratio (M1-M2/n)/(Si+M1)(in which II is the valence of said other metal) is at most equal to 1.5%. The temperature of the catalyst and the contact time of ethanol with said catalyst are such that the conversion rate of ethanol into ethylene is about 100% and the carbon selectivity for ethylene is at least equal to about 99% by weight.

    摘要翻译: 本发明涉及一种通过含沸石型催化剂的无水或含水乙醇获得乙烯的方法,所述沸石型催化剂含有具有3价和4价的金属M1的硅酸盐和四配位并且可能含有另一种电荷补偿金属M2 在孟德尔耶夫表中的Ia,Ib,IIa,IIb,IIIa,IIIb,IVa,IVb,Va,VIb,VIIb和VIII族的元素中。 作为M2金属的实例,可以列举碱金属,碱土金属和镧系元素。 根据本发明,无水或含水乙醇与上述类型的催化剂接触,其中比率(M1-M2 / n)/(Si + M1)(其中II是所述另一种金属的化合价)处于 最多等于1.5%。 催化剂的温度和乙醇与所述催化剂的接触时间使得乙醇转化成乙烯的转化率为约100%,并且乙烯的碳选择性至少等于约99重量%。