Performance stability in shallow beds in pressure swing adsorption systems
    35.
    发明申请
    Performance stability in shallow beds in pressure swing adsorption systems 有权
    变压吸附系统浅层床的性能稳定性

    公开(公告)号:US20080083332A1

    公开(公告)日:2008-04-10

    申请号:US11542948

    申请日:2006-10-04

    IPC分类号: B01D53/047

    摘要: PSA process for oxygen production comprising (a) providing an adsorber having a first layer of adsorbent selective for water and a second layer of adsorbent selective for nitrogen, wherein the heat of adsorption of water on the adsorbent in the first layer is ≦ about 14 kcal/mole at water loadings≧ about 0.05 mmol per gram; (b) passing a feed gas comprising at least oxygen, nitrogen, and water successively through the first and second layers, adsorbing water in the first layer of adsorbent, and adsorbing nitrogen in the second layer of adsorbent, wherein the mass transfer coefficient of water in the first layer is in the range of about 125 to about 400 sec−1 and the superficial contact time of the feed gas in the first layer is between about 0.08 and about 0.50 sec; and (c) withdrawing a product enriched in oxygen from the adsorber.

    摘要翻译: 用于氧气生产的PSA方法,包括(a)提供具有对水有选择性的第一吸附剂吸附剂和对氮气有选择性的第二吸附剂层的吸附器,其中在第一层中的吸附剂上的水的吸附热< kcal / mole在水负荷下> =约0.05mmol / g; (b)使至少包含氧,氮和水的进料气体依次通过第一和第二层,吸附第一层吸附剂中的水并吸附第二层吸附剂中的氮,其中水的传质系数 在第一层中在约125至约400秒-1的范围内,并且第一层中进料气体的表面接触时间在约0.08至约0.50秒之间; 和(c)从吸附器中取出富含氧的产物。