Process for the recovery of halogenated hydrocarbons in a gas stream
    1.
    发明授权
    Process for the recovery of halogenated hydrocarbons in a gas stream 失效
    在气流中回收卤代烃的方法

    公开(公告)号:US5231980A

    公开(公告)日:1993-08-03

    申请号:US640525

    申请日:1991-01-11

    IPC分类号: A61M16/00 B01D53/04

    摘要: A process for the recovery of halogenated hydrocarbons from a gas stream comprises passing the gas stream through a bed of hydrophobic molecular sieve adsorbent, preferably of the high silica zeolite type. Such adsorbent has pore diameters large enough to permit molecules of the halogenated hydrocarbons to pass therethrough and be selectively adsorbed in the large internal cavities of the crystal framework, whereby the halogenated hydrocarbons are removed. The gas is continued to be passed through the bed of adsorbent material until the material is saturated to the extent that breakthrough of the hydrocarbons is determined. The adsorbent material with adsorb phase of halogenated hydrocarbons is removed from the machine and regenerated by exposing the saturated material to an inert purging gas stream under conditions which desorb the halogenated hydrocarbons from the adsorbent material into the purging gas stream. The halogenated hydrocarbons are then removed from the purging gas stream and purified to a purity for reuse of the recovered halogenated hydrocarbons.

    摘要翻译: 从气流中回收卤代烃的方法包括使气流通过疏水性分子筛吸附剂床,优选为高硅沸石型。 这种吸附剂具有足够大的孔径以允许卤代烃的分子通过,并且选择性地吸附在晶体骨架的大内腔中,从而除去卤代烃。 气体继续通过吸附材料床,直到材料饱和为止,确定了烃的穿透程度。 将具有卤代烃吸附相的吸附剂材料从机器中除去,并通过在将卤代烃从吸附剂材料解吸到吹扫气体流中的条件下将饱和材料暴露于惰性吹扫气体流中而再生。 然后将卤代烃从净化气流中除去并纯化至回收的卤代烃的再利用纯度。

    Canister for the recovery of halogenated hydrocarbons in a gas stream
    2.
    发明授权
    Canister for the recovery of halogenated hydrocarbons in a gas stream 失效
    用于回收气流中的卤代烃的罐

    公开(公告)号:US5515845A

    公开(公告)日:1996-05-14

    申请号:US50687

    申请日:1993-04-22

    IPC分类号: A61M16/00 B01D53/04 A62B7/10

    摘要: A process for the recovery of halogenated hydrocarbons from a gas stream comprises passing the gas stream through a bed of hydrophobic molecular sieve adsorbent, preferably of the high silica zeolite type. Such adsorbent has pore diameters large enough to permit molecules of the halogenated hydrocarbons to pass therethrough and be selectively adsorbed in the large internal cavities of the crystal framework, whereby the halogenated hydrocarbons are removed. The gas is continued to be passed through the bed of adsorbent material until the material is saturated to the extent that breakthrough of the hydrocarbons is determined. The adsorbent material with adsorb phase of halogenated hydrocarbons is removed from the machine and regenerated by exposing the saturated material to an inert purging gas stream under conditions which desorb the halogenated hydrocarbons from the adsorbent material into the purging gas stream. The halogenated hydrocarbons are then removed from the purging gas stream and purified to a purity for reuse of the recovered halogenated hydrocarbons.

    摘要翻译: 从气流中回收卤代烃的方法包括使气流通过疏水性分子筛吸附剂床,优选为高硅沸石型。 这种吸附剂具有足够大的孔径以允许卤代烃的分子通过,并且选择性地吸附在晶体骨架的大内腔中,从而除去卤代烃。 气体继续通过吸附材料床,直到材料饱和为止,确定了烃的穿透程度。 将具有卤代烃吸附相的吸附剂材料从机器中除去,并通过在将卤代烃从吸附剂材料解吸到吹扫气体流中的条件下将饱和材料暴露于惰性吹扫气体流中而再生。 然后将卤代烃从净化气流中除去并纯化至回收的卤代烃的再利用纯度。