SEPARATION OF PROPYLENE FROM HYDROCARBON MIXTURES
    8.
    发明申请
    SEPARATION OF PROPYLENE FROM HYDROCARBON MIXTURES 审中-公开
    从烃混合物中分离丙烯

    公开(公告)号:WO2003080548A1

    公开(公告)日:2003-10-02

    申请号:PCT/US2003/006030

    申请日:2003-02-28

    IPC分类号: C07C7/13

    摘要: In a process for separating propylene from a mixture comprising propylene and propane, the mixture is passed through a bed of an adsorbent comprising a porous crystalline material having (i) a diffusion time constant for propylene of at least 0.1 sec -1 , when measured at a temperature of 373°K and a propylene partial pressure of 8 kPa, and (ii) a diffusion time constant for propane, when measured at a temperature of 373°K and a propane partial pressure of 8 kPa, less than 0.02 of said diffusion time constant for propylene. The bed preferentially adsorbs propylene from the mixture. The adsorbed propylene is then desorbed from the bed either by lowering the pressure or raising the temperature of the bed.

    摘要翻译: 在从包含丙烯和丙烷的混合物中分离丙烯的方法中,将混合物通过包含多孔结晶材料的吸附剂床,该多孔结晶材料的床(i)丙烯的扩散时间常数至少为0.1秒-1,当 在373°K的温度和8kPa的丙烯分压下测量,和(ii)丙烷的扩散时间常数,当在373°K的温度和8kPa的丙烷分压下测量时,小于0.02的 所述丙烯的扩散时间常数。 床优先从混合物中吸附丙烯。 然后通过降低压力或升高床的温度,将吸附的丙烯从床中解吸。