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    • 1. 发明授权
    • Method for producing ethylene and propylene
    • 生产乙烯和丙烯的方法
    • US06307117B1
    • 2001-10-23
    • US09508043
    • 2000-03-03
    • Takashi TsunodaMitsuhiro Sekiguchi
    • Takashi TsunodaMitsuhiro Sekiguchi
    • C07C406
    • C07C4/06B01J29/061B01J29/40B01J29/44C07C2529/04C07C2529/40C10G2400/20Y02P20/52C07C11/06C07C11/04
    • Disclosed is a method for producing ethylene and propylene from a hydrocarbon feedstock by catalytic conversion, which comprises contacting, in a reactor, a hydrocarbon feedstock comprising 20% by weight or more, based on the weight of the hydrocarbon feedstock, of at least one C4-C12 olefin with a zeolite-containing catalyst, wherein the zeolite in the zeolite-containing catalyst satisfies the following requirements: (1) the zeolite is an intermediate pore size zeolite having a pore size of from 5 to 6.5 Å, (2) the zeolite contains substantially no proton, (3) the zeolite contains at least one metal selected from the group consisting of metals belonging to Group IB of the Periodic Table, and (4) the zeolite has an SiO2/Al2O3 molar ratio of from 200 to 5,000, to effect a catalytic conversion reaction of the hydrocarbon feedstock, thereby obtaining a reaction mixture containing ethylene and propylene; and separating the ethylene and propylene from the reaction mixture. In the method of the present invention, the zeolite-containing catalyst has high resistance to deactivation and, thus, ethylene and propylene can be stably produced in high yield for a prolonged period of time.
    • 公开了一种通过催化转化从烃原料生产乙烯和丙烯的方法,其包括在反应器中使基于烃原料重量的20重量%或更多的烃原料与至少一个C 4 -C 12烯烃与含沸石的催化剂,其中,含沸石的催化剂中的沸石满足以下要求:(1)沸石是孔径为5〜6.5的中等孔径的沸石,(2) 沸石基本上不含质子,(3)沸石含有选自元素周期表第IB族金属中的至少一种金属,(4)沸石的SiO 2 / Al 2 O 3摩尔比为200-5,000 ,进行烃原料的催化转化反应,得到含有乙烯和丙烯的反应混合物; 并从反应混合物中分离乙烯和丙烯。 在本发明的方法中,含沸石的催化剂具有高的失活性,因此可以长期稳定地高产率地制备乙烯和丙烯。