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    • 8. 发明授权
    • Process for manufacturing olefins
    • 制造烯烃的方法
    • US06548725B2
    • 2003-04-15
    • US09918925
    • 2001-07-31
    • Gilbert Fernand Alphonse FromentWilfried Jozef Hippolyte DehertogMark P. Kaminsky
    • Gilbert Fernand Alphonse FromentWilfried Jozef Hippolyte DehertogMark P. Kaminsky
    • C07C406
    • C07C4/06B01J29/061B01J29/405B01J29/82B01J2229/26B01J2229/42C07C2529/40C10G2400/20Y02P30/40
    • A catalyst and an improved process for producing olefins by catalytic naphtha cracking are described. The process provides relatively higher yields over a commercially important range of naphtha conversion, while providing about the same or lower yields of aromatics and methane over the range. In the process, a hydrocarbon naphtha feedstock including a hydrocarbon having about three to about twenty carbon atoms per molecule is passed into a reactor containing a pentasil zeolite catalyst. The catalyst includes about 0.1 to about 10 weight percent phosphorus and about 0.1 to about 10 weight percent of a promoter metal selected from the group consisting of gallium, germanium, tin and mixtures thereof. The hydrocarbon may be passed into the reactor together with a diluent selected from the group consisting of steam, nitrogen, methane, and ethane and mixtures thereof. Alternatively, the hydrocarbon may be passed into the reactor together with additional propane.
    • 描述了通过催化石脑油裂解生产烯烃的催化剂和改进方法。 该方法在商业上重要的石脑油转化范围上提供相对较高的产率,同时在该范围内提供大约相同或更低的芳族化合物和甲烷的产率。 在此过程中,将包含每分子约3至约20个碳原子的烃类石脑油原料进入含有pentasil沸石催化剂的反应器中。 催化剂包括约0.1至约10重量%的磷和约0.1至约10重量%的选自镓,锗,锡及其混合物的助催化剂金属。 烃可以与选自蒸汽,氮气,甲烷和乙烷的稀释剂及其混合物一起进入反应器。 或者,烃可以与另外的丙烷一起进入反应器。