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公开(公告)号：US20120125044A1
公开(公告)日：2012-05-24
申请号：US12950196
申请日：2010-11-19
IPC分类号： F25J3/00
CPC分类号： F25J3/04303 , F25J3/0409 , F25J3/04169 , F25J3/04206 , F25J3/04418 , F25J3/04781 , F25J3/04812 , F25J3/04957 , F25J2200/34 , F25J2200/54 , F25J2205/62 , F25J2230/24 , F25J2230/40
摘要： A method and apparatus for separating air to produce a gaseous oxygen product in which the air is separated in an air separation plant to conduct a cryogenic rectification process that utilizes higher and lower pressure compressed air streams. The higher and lower pressure compressed air streams are generated in two multistage compressors linked together so that the lower pressure compressed air stream is produced from intermediate stages and the higher pressure compressed air stream is produced from higher pressure compression stages. During turn-down operational conditions, one of the two multistage compressors can be shut down to decrease the flow of air and therefore, the production of the oxygen product.
摘要翻译： 一种用于分离空气以产生气体氧产物的方法和装置，其中空气在空气分离设备中分离，以进行利用较高和较低压力的压缩空气流的低温精馏过程。 高压和低压压缩空气流在连接在一起的两台多级压缩机中产生，使得低压压缩空气流从中间级产生，而较高压力的压缩空气流由较高压力的压缩级产生。 在下降操作条件下，可以关闭两台多级压缩机之一，以减少空气流量，从而减少氧气产品的生产。
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2.发明授权Cold compression cryogenic rectification system for producing low purity oxygen 有权用于生产低纯氧的冷压缩低温精馏系统公开(公告)号：US06626008B1
公开(公告)日：2003-09-30
申请号：US10316095
申请日：2002-12-11
IPC分类号： F25J304
CPC分类号： F25J3/04054 , F25J3/0406 , F25J3/0409 , F25J3/04133 , F25J3/04303 , F25J3/04309 , F25J3/04351 , F25J3/04393 , F25J3/04418 , F25J2200/34 , F25J2200/54 , F25J2215/50
摘要： A cryogenic rectification system for producing low purity oxygen from an auxiliary column to a double column system wherein the auxiliary column is reboiled by fluid taken from an intermediate level of the higher pressure column or by a portion of cooled feed air which is cold compressed to a higher pressure prior to the reboiling.
摘要翻译： 一种用于从辅助塔到双塔系统生产低纯度氧的低温精馏系统，其中辅助塔被从高压塔的中间水平或被冷压缩的一部分冷却的进料空气中流出的流体再沸腾 再沸腾前压力较高。
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3.发明授权Cryogenic rectification system for producing low purity oxygen using shelf vapor turboexpansion 有权低温精馏系统，用于生产低纯度氧气，采用架式蒸气涡轮膨胀公开(公告)号：US06622520B1
公开(公告)日：2003-09-23
申请号：US10316116
申请日：2002-12-11
IPC分类号： F25J304
CPC分类号： F25J3/0409 , F25J3/04018 , F25J3/0403 , F25J3/04145 , F25J3/04303 , F25J3/04309 , F25J3/04393 , F25J3/04418 , F25J2200/34 , F25J2200/54 , F25J2200/90 , F25J2215/50 , F25J2245/42 , Y10S62/90
摘要： A cryogenic rectification system for producing low purity oxygen from an auxiliary column to a double column system and which can also effectively produce nitrogen gas product and/or one or more liquid products wherein the lower pressure column of the double column system is reboiled in part by turboexpanded shelf vapor which is condensed in an intermediate reboiler and preferably subcooled prior to passage into the lower pressure column.
摘要翻译： 一种用于从辅助塔到双塔系统生产低纯度氧的低温精馏系统，其还可以有效地产生氮气产物和/或一种或多种液体产物，其中双塔系统的低压塔部分由 涡轮膨胀的架子蒸气，其在中间再沸器中冷凝，并且优选在通入低压塔之前过冷。
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公开(公告)号：US20100037656A1
公开(公告)日：2010-02-18
申请号：US12191584
申请日：2008-08-14
CPC分类号： F25J3/04969 , F25J3/04054 , F25J3/0409 , F25J3/04303 , F25J3/04309 , F25J3/04315 , F25J3/04387 , F25J3/04412 , F25J3/04448 , F25J3/04678 , F25J3/04721 , F25J3/04745 , F25J3/04872 , F25J2200/20 , F25J2200/32 , F25J2200/38 , F25J2200/54 , F25J2200/90 , F25J2235/52 , F25J2240/10 , F25J2245/02 , F25J2250/20
摘要： A method of separating air in which a superheated air stream is introduced into a mass transfer contacting zone associated with a higher pressure column of an air separation unit. Krypton and xenon is washed from a superheated air stream introduced into the mass transfer contacting zone, thereby to form a krypton and xenon-rich liquid. The krypton and xenon-rich liquid is stripped within a stripping column to produce a krypton-xenon-rich bottoms liquid. A krypton-xenon-rich stream composed of the krypton-xenon-rich bottoms liquid from the stripping column is produced for purposes of further refinement.
摘要翻译： 一种分离空气的方法，其中将过热空气流引入与空气分离单元的较高压力塔相关联的传质接触区域。 从引入到传质接触区的过热空气流中洗涤氪和氙，从而形成氪和氙浓液体。 将氪和氙气的液体在汽提塔内汽提，以产生富含氪 - 氙的底部液体。 为了进一步细化的目的，生产了由来自汽提塔的富含氪 - 氙的底部液体组成的氪 - 氙浓缩物流。
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公开(公告)号：US07533540B2
公开(公告)日：2009-05-19
申请号：US11372153
申请日：2006-03-10
申请人： Neil Mark Prosser
发明人： Neil Mark Prosser
IPC分类号： F25J3/00
CPC分类号： F25J3/04678 , F25J3/0409 , F25J3/042 , F25J3/04296 , F25J3/04303 , F25J3/04387 , F25J3/04393 , F25J3/04412 , F25J3/04969 , F25J2240/10 , F25J2290/10
摘要： A system for separating air by cryogenic rectification whereby liquid production is increased by employing two separate turboexpanders, one which exhausts at a pressure no higher than that sufficient to feed the lower pressure column, the other which exhausts at a pressure no lower than that sufficient to feed the higher pressure column, and wherein one of the turboexpanders is fed with ambient temperature or modestly cooled feed air and preferably operates intermittently depending upon whether greater or lesser amounts of liquid product are desired.
摘要翻译： 一种用于通过低温精馏分离空气的系统，通过采用两个分开的涡轮膨胀机来提高液体产量，一个在不高于足以供给低压塔的压力下排出，另一个在不低于足够的压力下排出， 进料高压塔，并且其中一个涡轮膨胀机被供给环境温度或适度冷却的进料空气，并且优选地间歇地操作，这取决于是否需要更多或更少量的液体产物。
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公开(公告)号：US06881354B2
公开(公告)日：2005-04-19
申请号：US10201287
申请日：2002-07-24
CPC分类号： F25J1/0268 , C09K5/041 , C09K5/045 , C09K2205/112 , C09K2205/13 , C09K2205/22 , F25B5/02 , F25B9/006 , F25B2400/06 , F25B2400/23 , F25J1/0022 , F25J1/0052 , F25J1/0055 , F25J1/0097 , F25J1/0212 , F25J1/0214
摘要： Multicomponent refrigerant fluids for generating refrigeration, especially over a wide temperature range including cryogenic temperatures, which are advantageous over conventional refrigerant fluids especially for certain applications, and which are non-toxic, non-flammable and low or non-ozone-depleting and preferably are maintained in variable load form through compression, cooling, expansion and warming steps in a refrigeration cycle.
摘要翻译： 用于产生制冷的多组分制冷剂流体，特别是在包括低温温度的宽温度范围内，其比常规制冷剂流体尤其对于某些应用有利，并且是无毒的，不易燃的和低的或非消耗臭氧的，优选是 通过制冷循环中的压缩，冷却，膨胀和升温步骤保持可变负载形式。
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公开(公告)号：US5896755A
公开(公告)日：1999-04-27
申请号：US113174
申请日：1998-07-10
申请人： Kenneth Kai Wong , Dante Patrick Bonaquist , John Frederic Billingham , Michael Douglas Monteith , Neil Mark Prosser
发明人： Kenneth Kai Wong , Dante Patrick Bonaquist , John Frederic Billingham , Michael Douglas Monteith , Neil Mark Prosser
CPC分类号： F25J3/04678 , F25J3/04303 , F25J3/04412 , F25J3/0489 , F25J3/04945 , F25J3/04963 , Y10S62/911
摘要： A cryogenic rectification system for producing oxygen having a feed air preparation system and a plurality of same size cold box modules operating in parallel and in conjunction with the feed air preparation system.
摘要翻译： 一种用于生产氧气的低温精馏系统，其具有进料空气制备系统和多个相同尺寸的冷箱模块并联并与进料空气制备系统一起操作。
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公开(公告)号：US20130239609A1
公开(公告)日：2013-09-19
申请号：US13888555
申请日：2013-05-07
IPC分类号： F25J3/04
CPC分类号： F25J3/04745 , F25J3/0409 , F25J3/04969 , F25J2270/02 , F25J2270/12 , F25J2270/14 , F25J2270/42 , F25J2270/50 , F25J2290/60 , F25J2290/62
摘要： A method and apparatus for producing a krypton-xenon-rich stream in which a pipeline oxygen stream is removed from an oxygen pipeline at ambient temperature and then distilled in a cryogenic rectification plant to produce the krypton-xenon-rich stream from a column bottoms of a distillation column. The plant can generate its own refrigeration by way of a heat pump loop incorporating an expander or, alternatively, refrigeration can be added by means of a liquid oxygen reflux stream introduced into the top of such distillation column.
摘要翻译： 一种用于生产富氪 - 氙气流的方法和装置，其中在环境温度下从氧气管线中除去管道氧气流，然后在低温精馏装置中蒸馏以从塔底馏分产生富含氪 - 氙的物流 蒸馏塔。 该设备可以通过包括膨胀器的热泵回路产生其自身的冷冻，或者可以通过引入该蒸馏塔的顶部的液氧回流流加入制冷。
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公开(公告)号：US08448463B2
公开(公告)日：2013-05-28
申请号：US12411700
申请日：2009-03-26
申请人： Neil Mark Prosser , Wei Zhang
发明人： Neil Mark Prosser , Wei Zhang
IPC分类号： F25J3/00
CPC分类号： F25J3/0423 , F25J3/04084 , F25J3/0409 , F25J3/04218 , F25J3/04309 , F25J3/04387 , F25J3/04412 , F25J3/04678 , F25J2240/10 , F25J2240/22 , F25J2245/58
摘要： The present invention provides a method of rectifying an oxygen, nitrogen and argon containing feed stream that employs high and low pressure columns and an argon column. Refrigeration is imparted through turboexpansion of a nitrogen-rich vapor stream withdrawn from the high pressure column. The nitrogen-rich vapor stream has a sufficiently high flow rate that the flow of both vapor and liquid within the low pressure column is decreased to such an extent that the diameter of the low pressure column can be made substantially equal to or less than that of the high pressure column. The use of the argon column allows recovery of the oxygen to be increased over that which would otherwise be obtained given the draw of the nitrogen-rich vapor. The argon column can be an argon rejection column in which the separated argon is discarded as waste.
摘要翻译： 本发明提供一种使含有高，低压塔和氩塔的含氧，氮和氩的进料流整流的方法。 通过从高压塔排出的富氮蒸气流的涡轮膨胀来赋予制冷。 富氮蒸汽流具有足够高的流速，使得低压塔内的蒸汽和液体两者的流量降低到使得低压塔的直径基本上等于或小于 高压塔。 使用氩气柱可以使氧气的回收率增加到超过在富氮蒸气的排出时否则将获得的氧气。 氩塔可以是氩排除塔，其中分离的氩被浪费掉。
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公开(公告)号：US20120036892A1
公开(公告)日：2012-02-16
申请号：US13180690
申请日：2011-07-12
IPC分类号： F25J3/04
CPC分类号： F25J3/0409 , F25J3/04084 , F25J3/04218 , F25J3/04296 , F25J3/04387 , F25J3/04412 , F25J3/04678 , F25J3/04957 , F25J2230/24 , F25J2230/40 , F25J2240/10 , F25J2290/12
摘要： An air separation method and apparatus in which a supercritical oxygen product is produced by heating a pumped liquid oxygen stream having a supercritical pressure, through indirect heat exchange with a boosted pressure air stream. The indirect heat exchange is conducted within a heat exchanger and a liquid nitrogen stream is vaporized in the heat exchanger to depress the pressure that would otherwise be required of the boosted pressure air stream to heat the pumped liquid oxygen stream. The pumped liquid oxygen stream constitutes 90 percent of the oxygen-rich liquid removed from an air separation unit in which the air is rectified, the liquid nitrogen constitutes at least 90 percent of the liquid nitrogen that is not used as reflux and a flow-rate ratio between the liquid nitrogen stream and the oxygen-rich liquid is between about 0.3 and 0.90.
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