公开(公告)号：US06658894B2

公开(公告)日：2003-12-09

申请号：US10208078

申请日：2002-07-29

申请人： Timothy Christopher Golden ,  Thomas Stephen Farris ,  Robert Ling Chiang ,  Roger Dean Whitley ,  Fred William Taylor

发明人： Timothy Christopher Golden ,  Thomas Stephen Farris ,  Robert Ling Chiang ,  Roger Dean Whitley ,  Fred William Taylor

IPC分类号： F25J300

CPC分类号： C01B23/0068 ,  B01D53/04 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2253/304 ,  B01D2253/306 ,  B01D2256/18 ,  B01D2257/11 ,  B01D2259/40083 ,  B01D2259/416 ,  B01D2259/4533 ,  B01D2259/4575 ,  B01J20/186 ,  C01B2210/0035 ,  C01B2210/0037 ,  C01B2210/0045 ,  F25J3/04757 ,  F25J2205/60

摘要： Xenon and/or krypton are recovered from oxygen containing gas, typically derived from liquid oxygen bottoms in a cryogenic air separation plant, by selective adsorption on a Li and Ag exchange zeolite containing 5 to 40% Ag exchange capacity on an equivalents basis, with periodic thermal regeneration of the adsorbent.

公开(公告)号：US5917136A

公开(公告)日：1999-06-29

申请号：US725593

申请日：1996-10-03

申请人： Thomas Richard Gaffney ,  Timothy Christopher Golden ,  Steven Gerard Mayorga ,  Jeffrey Richard Brzozowski ,  Fred William Taylor

发明人： Thomas Richard Gaffney ,  Timothy Christopher Golden ,  Steven Gerard Mayorga ,  Jeffrey Richard Brzozowski ,  Fred William Taylor

IPC分类号： B01D53/04 ,  B01D53/02 ,  B01D53/047 ,  B01J20/08

CPC分类号： B01D53/04 ,  B01D53/02 ,  B01D53/047 ,  B01J20/08 ,  B01D2253/104 ,  B01D2256/22 ,  B01D2257/504 ,  B01D2257/80 ,  B01D2259/40052 ,  B01D2259/40056 ,  B01D2259/402 ,  Y02C10/08 ,  Y10S95/90

摘要： A pressure swing adsorption process for absorbing CO.sub.2 from a gaseous mixture containing CO.sub.2 comprising introducing the gaseous mixture at a first pressure into a reactor containing a modified alumina adsorbent maintained at a temperature ranging from 100.degree. C. and 500.degree. C. to adsorb CO.sub.2 to provide a CO.sub.2 laden alumina adsorbent and a CO.sub.2 depleted gaseous mixture and contacting the CO.sub.2 laden adsorbent with a weakly adsorbing purge fluid at a second pressure which is lower than the first pressure to desorb CO.sub.2 from the CO.sub.2 laden alumina adsorbent. The modified alumina adsorbent which is formed by depositing a solution having a pH of 3.0 or more onto alumina and heating the alumina to a temperature ranging from 100.degree. C. and 600.degree. C., is not degraded by high concentrations of water under process operating conditions.

摘要翻译： 一种用于从含有CO 2的气体混合物吸收CO 2的变压吸附方法，包括在第一压力下将气态混合物引入含有保持在100℃和500℃温度范围内的改性氧化铝吸附剂的反应器中以将CO 2吸附到 提供载有二氧化碳的氧化铝吸附剂和二氧化碳贫化气体混合物，并将二氧化碳负载的吸附剂与弱吸附的清洗流体接触，该第二压力低于第一压力以从含CO 2的氧化铝吸附剂中解吸出CO 2。 通过在氧化铝上沉积pH为3.0或更高的溶液并将氧化铝加热到100℃和600℃的温度而形成的改性氧化铝吸附剂在工艺操作下不被高浓度的水降解 条件。