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    • 8. 发明授权
    • Methane to olefins
    • 甲烷到烯烃
    • US07091391B2
    • 2006-08-15
    • US10391926
    • 2003-03-19
    • John E. Stauffer
    • John E. Stauffer
    • C07C1/00
    • C07C17/37C07C1/26C07C11/02C07C17/156C07C2521/12C07C2527/10C07C2527/122C07C2527/128C07C2527/135C07C19/043C07C19/03C07C21/12
    • The specification discloses a process for the production of olefins, including ethylene, propylene and butenes, from methane, the process comprising first, second and third reaction steps operated in tandem. In the first reaction step, hydrogen chloride, perchloroethylene and oxygen are reacted in the presence of a catalyst, using methane as a diluent, to yield hexachloroethane and water. In the second reaction step, the hexachoroethane from the first reaction step is reacted with methane to produce methyl chloride, hydrogen chloride and perchloroethylene. In the third reaction step, the methyl chloride from the second reaction step is reacted to give the desired olefins and hydrogen chloride. By recycling the perchloroethylene from the second reaction step and the hydrogen chloride from both the second and third reaction steps to the first reaction step, a balanced process is achieved that is self-sufficient in chlorine values.
    • 本说明书公开了一种从甲烷生产烯烃,包括乙烯,丙烯和丁烯的方法,该方法包括串联操作的第一,第二和第三反应步骤。 在第一反应步骤中,使用甲烷作为稀释剂,在催化剂的存在下使氯化氢,全氯乙烯和氧气反应,得到六氯乙烷和水。 在第二反应步骤中,将来自第一反应步骤的六氯乙烷与甲烷反应,生成甲基氯,氯化氢和全氯乙烯。 在第三反应步骤中,将来自第二反应步骤的甲基氯反应,得到所需的烯烃和氯化氢。 通过将来自第二反应步骤的全氯乙烯和从第二和第三反应步骤的氯化氢循环到第一反应步骤,实现了在氯值中自给自足的平衡过程。