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1.发明授权
公开(公告)号：US5656065A
公开(公告)日：1997-08-12
申请号：US539093
申请日：1995-10-04
IPC分类号： B01D53/04 , B01D53/047
CPC分类号： B01D53/047 , B01D2253/104 , B01D2257/504 , B01D2257/702 , B01D2257/80 , B01D2259/40037 , B01D2259/40056 , B01D2259/40066 , B01D2259/40081 , B01D2259/403 , B01D2259/404 , B01D2259/4061 , B01D2259/4062 , B01D2259/416 , B01D53/261 , Y02C10/08
摘要： Pressure swing apparatus comprises at least three parallel beds of adsorbent operated on cycles of being on-line to adsorb contaminant from a feed gas stream under pressure, being depressurized, being regenerated by a purge gas, and being repressurised. Feed gas is transferred from a depres-surising bed to a repressurizing bed to reduce switch loss and repressurization is extended to occupy at least 50% of the cycle to smooth the feed gas output.
摘要翻译： 压力摆动装置包括至少三个平行的吸附床，其在在线循环的过程中工作，在压力下吸附来自进料气流的污染物，被减压，通过吹扫气体再生并被再加压。 进料气体从沉积床转移到再加压床以减少开关损失，并且再加压延长至占循环的至少50％以平滑进料气体输出。
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公开(公告)号：US5656064A
公开(公告)日：1997-08-12
申请号：US538876
申请日：1995-10-04
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： Pressure swing adsorption to remove CO.sub.2 from a gas stream is conducted using an improved alumina obtained by impregnating a starting alumina with a basic solution having a pH of at least 9, e.g. of a basic compound such as KHCO.sub.3, and drying at a temperature low enough to avoid decomposing the basic compound to a form which adsorbs CO.sub.2 such that the compound does not regenerate under reduced pressure purging.
摘要翻译： 使用改进的氧化铝进行变压吸附以从气流中除去CO 2，所述氧化铝通过用pH至少为9的碱性溶液浸渍起始氧化铝而获得，例如， 的碱性化合物如KHCO 3，并在足够低的温度下干燥以避免将碱性化合物分解成吸附CO 2的形式，使得化合物在减压下不再生。
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公开(公告)号：US5846295A
公开(公告)日：1998-12-08
申请号：US812564
申请日：1997-03-07
CPC分类号： F25J3/04169 , B01D53/0407 , B01D53/0462 , F25J3/04157 , F25J3/04181 , F25J3/04775 , B01D2253/104 , B01D2253/108 , B01D2257/504 , B01D2257/702 , B01D2257/80 , B01D2259/40052 , B01D2259/402 , F25J2205/70 , F25J2230/04 , Y02C10/08
摘要： Temperature swing adsorption to remove CO.sub.2 from a gas stream is conducted using alumina to adsorb all the water and at least most of the carbon dioxide from the gas stream. Optionally a downstream zone of zeolite may be provided to remove further carbon dioxide and hydrocarbons.
摘要翻译： 使用氧化铝进行从气流中除去CO 2的温度变化吸附以吸附来自气流的所有水和至少大部分二氧化碳。 任选地，可以提供沸石的下游区以除去进一步的二氧化碳和烃。
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公开(公告)号：US5779767A
公开(公告)日：1998-07-14
申请号：US814749
申请日：1997-03-07
CPC分类号： B01J20/183 , B01D53/04 , B01D53/0462 , B01J20/08 , B01D2253/104 , B01D2253/108 , B01D2253/1085 , B01D2253/30 , B01D2257/404 , B01D2257/504 , B01D2257/7022 , B01D2257/80 , B01D2259/416 , B01D53/047 , B01J2220/42 , Y02C10/08 , Y10S95/902
摘要： A process for the adsorption of at least carbon dioxide, water and oxides of nitrogen and preferably acetylene from a feed gas, comprises contacting the feed gas with an adsorbent mixture of a zeolite and an alumina. The process may be operated as a swing adsorption process comprising contacting the gas with the adsorbent at a first temperature and pressure to adsorb at least carbon dioxide, water and oxides of nitrogen therefrom and periodically regenerating the adsorbent by reducing the pressure and or increasing the temperature to which the adsorbent is exposed.
摘要翻译： 至少吸附二氧化碳，水和氮气氧化物，优选来自进料气体的乙炔的方法包括使进料气体与沸石和氧化铝的吸附剂混合物接触。 该方法可以作为变形吸附方法进行操作，包括在第一温度和压力下使气体与吸附剂接触以吸附至少二氧化碳，水和氮氧化物，并通过降低压力和/或增加温度来周期性地再生吸附剂 吸附剂暴露在其上。
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公开(公告)号：US5919286A
公开(公告)日：1999-07-06
申请号：US811805
申请日：1997-03-06
申请人： Timothy Christopher Golden , Fred William Taylor , Mohammed Ali Kalbassi , William Paul Schmidt
发明人： Timothy Christopher Golden , Fred William Taylor , Mohammed Ali Kalbassi , William Paul Schmidt
IPC分类号： B01D53/047
CPC分类号： B01D53/047 , F25J3/04169 , F25J3/04854 , B01D2253/104 , B01D2253/108 , B01D2257/402 , B01D2257/404 , B01D2257/504 , B01D2257/80 , B01D2259/40062 , B01D2259/4145 , B01D2259/416 , B01D53/261 , F25J2205/64 , Y02C10/08 , Y02C20/10
摘要： A process for removing nitrogen oxides, as well as water and carbon dioxide, from gas streams containing at least 0.2 ppm by volume of nitrogen oxides by passing the gas stream through an alumina adsorbent and a zeolite adsorbent, preferably 13X-zeolite. The process has utility in front end cleanup of air prior to cryogenic distillation of the air where nitrogen oxides would otherwise freeze under the cryogenic processing.
摘要翻译： 通过使气流通过氧化铝吸附剂和沸石吸附剂，优选13X-沸石，从含有至少0.2ppm体积氮氧化物的气流中除去氮氧化物以及水和二氧化碳的方法。 该方法在空气的低温蒸馏之前在前端清洁空气中具有效用，其中氮氧化物否则将在低温处理下冷冻。
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