Magnetically stabilized bed, temperature, partial pressure swing,
hydrogen recovery process
    1.
    发明授权
    Magnetically stabilized bed, temperature, partial pressure swing, hydrogen recovery process 失效
    磁稳定床,温度,分压摆动,氢回收过程

    公开(公告)号:US4319892A

    公开(公告)日:1982-03-16

    申请号:US183378

    申请日:1980-09-02

    IPC分类号: B01D53/12 C01B3/50 C01B3/56

    摘要: An adsorption process for the recovery of hydrogen from a feed gas or vapor which contains hydrogen in admixture with one or more hydrocarbon components, alone or in admixture with non-hydrocarbon components. Particulate adsorbent solids are provided with a magnetizable component, or components, and circulated between an adsorption zone in which hydrogen is concentrated in the off gas by contact of the adsorbent solids with the feed, and hydrogen recovered, and a desorption zone in which the exhausted solids are regenerated. Within the adsorption zone the feed is countercurrently contacted with the solids at relatively low temperature to selectively adsorb hydrocarbons, and perhaps other non-hydrogen components. The solids are formed into a moving, fluidized bed, and magnetically stabilized to suppress gross solids circulation while hydrocarbons are adsorbed from the feed. Occluded hydrogen is subsequently displaced from the particulate adsorbent solids with hydrocarbons, and the hydrocarbon enriched particulate adsorbent solids are then transported to the desorption zone. In the desorption zone the solids are fluidized, and the temperature of the bed is elevated sufficiently to desorb at least a portion of the hydrocarbons. The residual hydrocarbons are subsequently displaced, suitably with steam or water by contact with steam in a magnetically stabilized bed of the solids. The wet solids are then dried by contact with hydrogen to displace the water, and cooled to complete the regeneration.

    摘要翻译: 用于从含有氢气的进料气体或蒸气中回收氢气的吸附方法,所述氢气与一种或多种烃组分混合,单独或与非烃组分混合。 颗粒吸附剂固体提供有可磁化组分或组分,并且通过吸附剂固体与进料的接触和回收的氢气在其中氢气在废气中浓缩的吸附区和在其中被排出的脱附区之间循环 固体再生。 在吸附区内,进料在相对低的温度下与固体逆流接触,以选择性地吸附碳氢化合物,以及可能的其他非氢组分。 固体形成移动的流化床,并且磁稳定以抑制总固体循环,同时烃从进料中吸附。 封闭的氢气随后用碳氢化合物从颗粒吸附剂固体中移出,然后将富含烃的颗粒吸附剂固体输送到解吸区。 在解吸区中,固体被流化,并且床的温度被充分升高以解吸至少一部分烃。 随后,通过与固体的磁稳定床中的蒸汽接触,残留的碳氢化合物适当地与蒸汽或水相接触。 然后通过与氢气接触将湿固体干燥以置换水,并冷却以完成再生。

    Octane catalytic cracking process
    3.
    发明授权
    Octane catalytic cracking process 失效
    辛烷催化裂化工艺

    公开(公告)号:US4566966A

    公开(公告)日:1986-01-28

    申请号:US624939

    申请日:1984-08-28

    IPC分类号: C10G11/18 C10G11/00

    CPC分类号: C10G11/187

    摘要: A method for improving the octane rating of products from a catalytic cracking system is disclosed. The method is directed at maintaining the metal contaminant level on the cracking catalyst above about 400 wppm equivalent metal and periodically passing the cracking catalyst through a passivation zone having a reducing atmosphere maintained at an elevated temperature to passivate the metal contaminant on the cracking catalyst.

    摘要翻译: 公开了一种提高催化裂化系统产品辛烷值的方法。 该方法旨在将裂化催化剂上的金属污染物水平维持在约400wppm当量金属上,并周期性地使裂化催化剂通过保持在高温下的还原气氛的钝化区,以钝化裂化催化剂上的金属污染物。