公开(公告)号：US5258060A

公开(公告)日：1993-11-02

申请号：US950120

申请日：1992-09-23

申请人： Thomas R. Gaffney ,  John F. Kirner ,  Ravi Kumar ,  Robin J. Maliszewskyj

发明人： Thomas R. Gaffney ,  John F. Kirner ,  Ravi Kumar ,  Robin J. Maliszewskyj

IPC分类号： B01D53/04 ,  B01D53/047 ,  B01J20/02 ,  B01J20/18

CPC分类号： B01D53/0476 ,  B01D53/047 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2253/30 ,  B01D2256/12 ,  B01D2257/102 ,  B01D2259/40066 ,  B01D53/0462 ,  Y10S95/902

摘要： The present invention is directed to adsorptive separation of nitrogen with active adsorbent phases with high N.sub.2 capacity and high heats of adsorption when diluted with inert material at levels ranging from 5% to 80%. The presence of diluent reduces the temperature swings in the adsorbent bed, which increases the utilizable effective N.sub.2 working capacity and decreases the relative amount of O.sub.2 left unrecovered on the active adsorbent phase. The net result is equal or better process performance allowing utilization of a lower amount of active adsorbent phase. Use of a diluent having a higher heat capacity than that of the active adsorbent phase increases these benefits, but dilution effects are beneficial even for diluents with heat capacities equal to or lower than that of the active adsorbent phase.

公开(公告)号：US5248322A

公开(公告)日：1993-09-28

申请号：US955620

申请日：1992-10-01

申请人： Ravi Kumar

发明人： Ravi Kumar

IPC分类号： B01D53/047

CPC分类号： B01D53/047 ,  B01D2253/102 ,  B01D2253/104 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2259/40001 ,  B01D2259/40066 ,  B01D2259/40069 ,  B01D2259/4061

摘要： A pressure swing adsorption process is set forth for the recovery of two gas products at high recovery and high purity using the steps of adsorption, depressurization, evacuation and repressurization. A portion of the depressurization effuent is used to partially accomplish the repressurization step.

公开(公告)号：US4711645A

公开(公告)日：1987-12-08

申请号：US828008

申请日：1986-02-10

申请人： Ravi Kumar

发明人： Ravi Kumar

IPC分类号： B01D53/047 ,  B01D53/04

CPC分类号： B01D53/047 ,  B01D2253/104 ,  B01D2253/108 ,  B01D2257/504 ,  B01D2257/80 ,  B01D2259/40062 ,  B01D2259/402 ,  B01D2259/4146 ,  B01D53/261 ,  Y02C10/08

摘要： Reduction in energy consumption is had in a system for adsorptive removal of moisture and CO.sub.2 from atmospheric air by passing the feed air through consecutive beds of adsorbent comprising first alumina then molecular sieve zeolite, at near ambient temperature during adsorption of these impurities and subsequent regeneration of the sorbent laden beds by pressure reduction to about atmospheric level and purge at that level with product gas freed of water and CO.sub.2.

摘要翻译： 在吸附去除大气中的水分和二氧化碳的系统中，通过使进料空气通过连续的吸附剂包含第一氧化铝的吸附剂和分子筛沸石在接近环境温度下吸附这些杂质并随后再生 通过压力降低至大约水平的吸附剂填充床，并在该水平处吹扫产物气体，释放出水和二氧化碳。