CN101421575A - 用于低温分离空气的方法和装置 - Google Patents
用于低温分离空气的方法和装置 Download PDFInfo
- Publication number
- CN101421575A CN101421575A CNA2007800135967A CN200780013596A CN101421575A CN 101421575 A CN101421575 A CN 101421575A CN A2007800135967 A CNA2007800135967 A CN A2007800135967A CN 200780013596 A CN200780013596 A CN 200780013596A CN 101421575 A CN101421575 A CN 101421575A
- Authority
- CN
- China
- Prior art keywords
- air stream
- pressure
- air
- distillation column
- column system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004821 distillation Methods 0.000 claims abstract description 24
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000000047 product Substances 0.000 claims abstract 7
- 239000012263 liquid product Substances 0.000 claims abstract 3
- 230000006837 decompression Effects 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000883306 Huso huso Species 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- PDEXVOWZLSWEJB-UHFFFAOYSA-N krypton xenon Chemical compound [Kr].[Xe] PDEXVOWZLSWEJB-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04436—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using at least a triple pressure main column system
- F25J3/04454—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using at least a triple pressure main column system a main column system not otherwise provided, e.g. serially coupling of columns or more than three pressure levels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04048—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams
- F25J3/04054—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams of air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
- F25J3/0409—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04163—Hot end purification of the feed air
- F25J3/04169—Hot end purification of the feed air by adsorption of the impurities
- F25J3/04175—Hot end purification of the feed air by adsorption of the impurities at a pressure of substantially more than the highest pressure column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
- F25J3/04193—Division of the main heat exchange line in consecutive sections having different functions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
- F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
- F25J3/04296—Claude expansion, i.e. expanded into the main or high pressure column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
- F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
- F25J3/04303—Lachmann expansion, i.e. expanded into oxygen producing or low pressure column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04375—Details relating to the work expansion, e.g. process parameter etc.
- F25J3/04393—Details relating to the work expansion, e.g. process parameter etc. using multiple or multistage gas work expansion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04406—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system
- F25J3/04412—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2240/00—Processes or apparatus involving steps for expanding of process streams
- F25J2240/02—Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
- F25J2240/04—Multiple expansion turbines in parallel
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
本发明涉及一种用于借助一个用于氮氧分离的蒸馏塔***(20)低温分离空气的方法和装置,该蒸馏塔***具有至少一个分离塔(21,22)。在一个空气压缩机(2)中压缩一个主空气流(1,5)并且在一个净化装置(4)中净化该主空气流。从所述主空气流(5)中分支出一个第一和第二空气流(7,8)。在两个串联连接的再压缩机(10,13)中再压缩所述第一空气流(7)。通过间接的热交换(16)冷却并且至少部分地液化或者伪液化所述被再压缩了的第一空气流(15)并且接着将其导入到所述用于氮氧分离的蒸馏塔***(20)中。通过间接的热交换(16)冷却所述第二空气流(8)并且接着将其分为两个分流(24,27)并且使其在两个减压机(25,28)中做功地减压,其中,这两个减压机具有基本上相同的入口压力。将所述第二空气流的做功地减压的这些分流(26,29)至少部分地导入(30,129)到所述用于氮氧分离的蒸馏塔***(20)中。所述第二空气流做功地减压(25,28)时产生的机械能被至少部分地利用来驱动所述两个串联连接的再压缩机(10,13)。从所述用于氮氧分离的蒸馏塔***(20)中取出一个液态的产品流(31)、使其在液态下置于(32)一个增高的压力并且在该增高的压力下通过与所述第一空气流(15)的间接热交换(16)蒸发或者伪蒸发并且最后将其作为气态的产品流(34)取出。所述两个再压缩机(10,13)以一个高于250K的入口温度运行,尤其是以一个高于270K的入口温度运行。
Description
技术领域
本发明涉及一种如权利要求1的前序部分所述的用于低温分离空气的方法。
背景技术
例如由Hausen/Linde的低温技术,1985年第二版第四章(第281页至337页)公开了用于低温分离空气的方法和装置。该发明的蒸馏塔***可以被构造为用于氮氧分离的单塔***、被构造为两塔***(例如构造为传统的林德双塔***)或者被构造为三塔或更多塔***。除了用于氮氧分离的塔之外,也可以设置另外的装置来获得其他空气成分,特别是获得惰性气体、例如获得氩或者获得氪-氙。
本发明特别是涉及一种方法,通过该方法获得至少一种气态的压力产品,其方式是将一个液态的产品流从用于氮氧分离的蒸馏塔***中取出、使其在液态中置于一个增高的压力并且在该增高的压力下通过间接的热交换蒸发或者(在超临界的压力下)伪蒸发。例如由DE 830805、DE 901542(=US 2712738/US 2784572)、DE 952908、DE 1103363(=US 3083544)、DE 1112997(=3214925)、DE 1124529、DE 1117616(=US 3280574)、DE1226616(=US 3216206)、DE 1229561(=US 3222878)、DE 1199293、DE1187248(=US 3371496)、DE 1235347、DE 1258882(=US 3426543)、DE1263037(US 3401531)、DE 1501722(=US 3416323)、DE 1501723(=US3500651)、DE 2535132(=US 4279631)、DE 2646690、EP 93448B1(=US4555256)、EP 384483 B1(=US 5036672)、EP 505812(=US 5263328)、EP716280 B1(=US 5644934)、EP 842385B1(=US 5953937)、EP 758733 B1(=US 5845517)、EP 895045 B1(=US 6038885)、DE 19803437 A1、EP 949471B1(=US 6185960B1)、EP 955509 A1(=US 6196022 B1)、EP 1031804 A1(=US 6314755)、DE 19909744、EP 1067345 A1(US 6336345)、EP 1074875A1(=US 6332337)、DE 19954593 A1、EP 1134525 A1(=US 6477860)、DE10013073 A1、EP 1139046 A1、EP 1146301 A1、EP 1150082 A1、EP 1213552A1、DE 10115258 A1、EP 12844404 A1(US 2003051504 A1)、EP 1308680 A1(=US 6612129 B2)、DE 10213212 A1、DE 10213211 A1、EP 1357342 A1或DE 10238282 A1公开了这种内压缩方法。由WO 2004/099690公开了一种本文开头所述类型的方法。
发明内容
本发明的目的是,经济上特别有利地设计一种此类的方法和一种相应的装置。
该目的通过以下方式解决,即两个再压缩机(Nachverdichter)以高于250K、特别是高于270K的入口温度运行。
即两个再压缩机热运行。由此可以使用试验过的技术,例如两个相同的涡轮升压机组合。此外,换热器体积较小并且从而节省了投资成本。
减压机(Entspannungsmaschine)优选被构造为涡轮。它们具有“基本上相同的入口压力”,也就是说,它们的入口压力最多在管路中的、换热器通道或类似物中的不同压力损失方面有区别。两个减压机的入口温度相同或者不同并且处于主换热器的热端和冷端之间的一个或者两个中间水平上。
本发明可以应用在具有恰好两个空气流和将第二空气流分为恰好两个分流的方法中。替代地,在本发明中也可以使用一个或者更多个附加的空气流和/或一个或更多个附加的分流。例如可能的是,使用三个或更多个减压机。这些减压机可以、但不必在入口侧并联连接。
本发明的两个或更多个减压机也可以在出口侧并联连接,也就是说,具有基本上相同的出口压力并且具有基本上相同的出口温度。对此替代地,所述在入口侧并联连接的减压机中的至少两个具有不同的压力。
来自做功地减压的机械能的传递优选通过所述两个并联连接的减压机中的第一减压机与所述两个串联连接的再压缩机中的第一再压缩机的直接的机械耦联并且通过所述两个减压机中的第二减压机与所述两个再压缩机中的第二再压缩机的直接的机械耦联实现。
特别有利的是将本发明应用在两塔或更多塔***中,所述两塔或更多塔***具有一个高压塔和一个低压塔,其中,低压塔的工作压力低于高压塔的工作压力。
优选所述两个分流中的第一分流在其做功地减压的下游被导入到高压塔中。在此,相应减压涡轮的出口压力处于大约高压塔的工作压力的水平上。
然后,所述两个分流中的第二分流同样被减压到大约高压塔压力并且例如与所述第一分流一起被导入到高压塔中。
对此替代地,第二空气流的所述两个分流的第二分流至少部分地被导入到低压塔中。由此,可能的是,相应减压涡轮的出口压力被更低地选择并且在减压时通过增高的压力比可以做更多的功并且从而产生更多的冷。
在三塔或更多塔***中(即当用于氮氧分离的蒸馏塔***具有一个高压塔、一个中压塔和一个低压塔时,这些塔在不同的压力下工作),第一分流可以至少部分地被导入到高压塔中并且第二分流至少部分地被导入到中压塔和/或低压塔中。
在很多情况下有利的是,第一空气流在第一再压缩机的上游并且第一空气流在第二再压缩机的下游处于间接的热交换。在此,该第一空气流在第一再压缩机前面被加热并且在第二再压缩机后面又被冷却。由此,该第一空气流以一个温度进入到主换热器中,该温度低于第二再压缩机之后或者其再冷却器之后的温度。典型的方式是,该温度差为1-10K、优选为2-5K。由此,产品流能够以更低的温度从主换热器中排出,这对于空气的预冷和用于净化空气的分子筛的冷却具有有利的影响。
替代或附加地,使用传统的中间冷却器或再冷却器,其通过与一种外部的冷媒、例如冷却水的间接热交换将在所述再压缩机中出现的压缩热(Kompression)排出。在此,可以使用一个或两个再冷却器,其方式是仅仅第一再压缩机、仅仅第二再压缩机或者两个再压缩机各具有一个再冷却器。原则上也可能的是,完全放弃再冷却器和上述的间接热交换。但是,通常至少第一再压缩机具有一个再冷却器(中间冷却器)。
本发明还涉及一种如权利要求9所述的、用于低温分离空气的装置。
附图说明
下面借助于附图中示意性示出的实施例详细描述本发明以及本发明的其他细节。其中:
图1示出本发明方法的第一实施例,
图2示出具有冷压缩机的第二实施例。
具体实施方式
在图1的实施例中,大气空气作为主空气流经由管路1被一个空气压缩机2吸入、在那里被压缩到10至30巴、优选大约19巴的第一压力、在一个预冷却器3中被冷却到大约环境温度并且被供入到一个吸附式空气净化装置4。被净化后的主空气流5在6处分支为一个第一空气流7和一个第二空气流8。
第一空气流在一个升压换热器9中被加热到大约冷却水温度并且在一个第一再压缩机10中被压缩到15-60巴、优选25巴的中间压力。接着,压缩热至少部分地在一个第一再冷却器11中被取出。然后,第一空气流12在一个第二再压缩机13中被进一步压缩到22-90巴、优选大约40巴的最终压力并且接着在一个第二再冷却器14和所述升压换热器9中被加热到大约超过冷却水温度。第一空气流15在该最终温度下进入到一个主换热器16中并且在那里被冷却和液化、例如(在超临界压力时)伪液化。冷的第一空气流17被减压到4-10巴、优选大约6巴的压力(其方式是例如在一个节流阀18中)并且在该压力下至少部分地液态地经由管路19导入到一个用于氮氧分离的蒸馏塔***的高压塔21中,该蒸馏塔***还具有一个低压塔22、一个未示出的冷凝蒸发器和一个过冷却逆流换热器23。
第二空气流8不被再压缩。该第二空气流在所述第一压力下被导入到主换热器16中并且在那里被冷却到125-200K、优选大约140K的中间温度。该第二空气流在该中间温度下被分支为两个分流24、27并且其在两个并联连接的涡轮25、28中遭受做功式减压,这两个分流被减压到大约高压塔21的工作压力。这两个被减压了的分流26、29再次汇合并且经由管路30基本上以气态被导入到高压塔21中。
氧31作为“液态产品流”被从所述用于氮氧分离的蒸馏塔***20的低压塔22中直接地或者经由一个液箱取出、通过泵32在液态下被置于一个增高的、4-70巴、优选大约40巴的压力。在该增高的压力下,液态或者超临界的氧33在主换热器16中通过与所述第一空气流的间接热交换被蒸发或者伪蒸发并且被加热到大约环境温度。最后,所述氧作为气态的产品流34被取走。从所述用于氮氧分离的蒸馏塔***20中可以经由主换热器取出一个或更多个另外的产品或者剩余流35。附加或者替代图中所示的氧内压缩地,也能够以类似的方式对来自主冷凝器或者来自所述用于氮氧分离的蒸馏塔***20的高压塔的氮进行内压缩。
在图1的实施例中,第一涡轮25和第一再压缩机10以及第二涡轮28和第二再压缩机13经由各一个共同的轴以成对的方式机械耦联。
升压换热器9和再冷却器14是可选的。它们可以个别地或者全部被取消。
图2示出一种实施例,其包括两个相对于图1的方法变型的方案。这两种方案可以彼此无关地应用。相同的或类似的方法步骤带有与图1类似的参考标号。
第一变型方案涉及第二涡轮28的出口压力。该出口压力在此被减压到1.2-4巴、优选大约1.4巴,即大致等于低压塔22的工作压力。被减压了的再分流129接着被吹入到低压塔中。所述两个涡轮25、28的入口压力仍与以前相同,入口温度可以保持相同或者不同。
在一个第二变型方案中,第二再压缩机113被构造为冷压缩机。因此,第一空气流12a、12b、12c已经在所述中间压力下被导入到主换热器16中并且在一个120-180K、优选大约48K的第二中间温度下又被从该主换热器16中取走。该第二中间温度可以小于或等于所述涡轮25、28的入口温度,优选该第二中间温度(与图中所示相反地)更高。在冷压缩机113的下游,第二空气流115在一个第三中间温度下(该第三温度高于涡轮入口温度并且为140-220K、优选大约180K)又被导入到所述主换热器16中。
与图2中的实施例不同地,所述第二空气流也可以在冷的再压缩机113的上游被一直引导到主换热器16的冷端并且在此情况下至少部分地被液化:该第二空气流然后被稍稍节流、又被导入到主换热器的冷端、又蒸发并且最后一直被加热到压缩机113的入口温度,如在EP 1067345 B1中详细描述的那样。
Claims (9)
1.一种用于借助一个用于氮氧分离的蒸馏塔***(20)低温分离空气的方法,该蒸馏塔***具有至少一个分离塔(21,22),其中,
在一个空气压缩机(2)中压缩一个主空气流(1,5)并且在一个净化装置(4)中净化该主空气流,
从所述主空气流(5)中分支出一个第一和一个第二空气流(7,8),
在两个串联连接的再压缩机(10,13)中再压缩所述第一空气流(7),
通过间接的热交换(16)冷却并且至少部分地液化或者伪液化所述被再压缩了的第一空气流(15)并且接着将第一空气流该导入到所述用于氮氧分离的蒸馏塔***(20)中,
所述第二空气流(8)被通过间接的热交换(16)冷却并且接着被分为两个分流(24,27)并且在两个减压机(25,28)中做功地减压,其中,这两个减压机具有基本上相同的入口压力,
将所述第二空气流的做功地减压后的分流(26,29)至少部分地导入(30,129)到所述用于氮氧分离的蒸馏塔***(20)中,
所述第二空气流在做功地减压(25,28)时产生的机械能被至少部分地利用来驱动所述两个串联连接的再压缩机(10,13),
从所述用于氮氧分离的蒸馏塔***(20)中取出一个液态的产品流(31)、该液态的产品流在液态下被达到(32)一个增高的压力并且在该增高的压力下通过与所述第一空气流(15)的间接热交换(16)被蒸发或者伪蒸发并且最后被作为气态的产品流(34)取出,
其特征在于:这两个再压缩机(10,13)以一个高于250K的入口温度运行,尤其是以一个高于270K的入口温度运行。
2.如权利要求1所述的方法,其特征在于:所述用于氮氧分离的蒸馏塔***(20)具有一个高压塔(21)和一个低压塔(22)。
3.如权利要求2所述的方法,其特征在于:所述第二空气流的两个分流的一第一分流(26)被至少部分地导入(30)到该高压塔(21)中。
4.如权利要求3所述的方法,其特征在于:所述第二空气流的两个分流的第二分流(29)被至少部分地导入(30)到该高压塔(21)中。
5.如权利要求2-4中任一项所述的方法,其特征在于:所述第二空气流的两个分流的第二分流被至少部分地导入(129)到该低压塔(22)中。
6.如权利要求1-5中任一项所述的方法,其特征在于:所述用于氮氧分离的蒸馏塔***具有一个高压塔、一个中压塔和一个低压塔,其中,所述第一分流被至少部分地导入到该高压塔中并且所述第二分流被至少部分地导入到该中压塔和/或该低压塔中。
7.如权利要求1-7中任一项所述的方法,其特征在于:所述第一空气流在所述第一再压缩机的上游并且所述第一空气流在所述第二再压缩机的下游彼此被置于间接的热交换(9)。
8.如权利要求1-7中任一项所述的方法,其特征在于:仅仅是第一再压缩机具有一个再冷却器、仅仅是第二再压缩机具有一个再冷却器或者这两个再压缩机各具有一个再冷却器(11,14)。
9.一种用于低温分离空气的装置,用于借助一个用于氮氧分离的蒸馏塔***(20)低温分离空气,该蒸馏塔***具有至少一个分离塔(21,22),该装置具有:
一个用于压缩一个主空气流(1)的空气压缩机(2),
用于净化所述被压缩了的主空气流的净化装置(4),
用于从所述主空气流(5)中分支出一个第一和一个第二空气流(7,8)的装置,
两个串联连接的、用于再压缩所述第一空气流(7)的再压缩机(10,13),
用于通过间接的热交换冷却并且液化或者伪液化所述被再压缩了的第一空气流(15)并且将该第一空气流导入到所述用于氮氧分离的蒸馏塔***(20)中的装置,
用于通过间接的热交换(16)将所述第二空气流(8)冷却到一个中间温度的装置(16),
两个在入口侧并联连接的减压机(25,28),用于使所述被冷却了的第二空气流以两个分流(24,27)做功地减压,
用于将所述第二空气流的做功地减压了的分流(26,29)导入到所述用于氮氧分离的蒸馏塔***(20)中的装置(26,29,30,129),
用于将所述第二空气流做功地减压(25,28)时产生的机械能传递到所述两个串联连接的再压缩机(10,13)上的装置,
用于从所述用于氮氧分离的蒸馏塔***(20)中取出一个液态的产品流(31)的、用于使该液态的产品流在液态下被提高压力到(32)一个增高的压力、用于在该增高的压力下通过与所述第一空气流(15)的间接热交换蒸发或者伪蒸发该产品流并且用于将该产品流作为气态的产品流(34)取出的装置(31,32,33,16,34),
其特征在于:
所述两个再压缩机(10,13)与用于供入在高于250K、尤其是高于270K的入口温度下的第一空气流的装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006012241.0 | 2006-03-15 | ||
DE102006012241A DE102006012241A1 (de) | 2006-03-15 | 2006-03-15 | Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft |
PCT/EP2007/001917 WO2007104449A1 (de) | 2006-03-15 | 2007-03-06 | Vefahren und vorrichtung zur tieftemperaturzerlegung von luft |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101421575A true CN101421575A (zh) | 2009-04-29 |
CN101421575B CN101421575B (zh) | 2012-11-07 |
Family
ID=38267644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2007800135967A Expired - Fee Related CN101421575B (zh) | 2006-03-15 | 2007-03-06 | 用于低温分离空气的方法和装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090188280A1 (zh) |
EP (1) | EP1994344A1 (zh) |
JP (1) | JP2009529648A (zh) |
CN (1) | CN101421575B (zh) |
DE (1) | DE102006012241A1 (zh) |
WO (1) | WO2007104449A1 (zh) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102022894A (zh) * | 2009-09-21 | 2011-04-20 | 林德股份公司 | 用于低温分离空气的方法和设备 |
CN103998883A (zh) * | 2011-09-20 | 2014-08-20 | 林德股份公司 | 低温分离空气的方法和设备 |
CN105241178A (zh) * | 2014-07-05 | 2016-01-13 | 林德股份公司 | 用于通过低温分离空气获取压力气体产物的方法和装置 |
CN105318663A (zh) * | 2014-07-05 | 2016-02-10 | 林德股份公司 | 用于低温分离空气的方法和装置 |
CN106716033A (zh) * | 2014-07-31 | 2017-05-24 | 林德股份公司 | 空气的低温分离方法和空气分离设备 |
CN106931721A (zh) * | 2015-12-07 | 2017-07-07 | 林德股份公司 | 低温分离空气的方法和空气分离设备 |
CN107606875A (zh) * | 2016-07-12 | 2018-01-19 | 林德股份公司 | 通过低温分离空气产生压缩氮和液氮的方法和设备 |
CN109564061A (zh) * | 2016-06-30 | 2019-04-02 | 乔治洛德方法研究和开发液化空气有限公司 | 用于通过低温分离空气以可变液体产量和功率使用来产生空气气体的方法和设备 |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010030441A2 (en) * | 2008-09-09 | 2010-03-18 | Conocophillips Company | System for enhanced gas turbine performance in a liquefied natural gas facility |
EP2464937A2 (de) * | 2009-08-11 | 2012-06-20 | Linde AG | Verfahren und vorrichtung zur erzeugung eines gasförmigen sauerstoff-druckprodukts durch tieftemperaturzerlegung von luft |
DE102010052545A1 (de) | 2010-11-25 | 2012-05-31 | Linde Aktiengesellschaft | Verfahren und Vorrichtung zur Gewinnung eines gasförmigen Druckprodukts durch Tieftemperaturzerlegung von Luft |
DE102010052544A1 (de) | 2010-11-25 | 2012-05-31 | Linde Ag | Verfahren zur Gewinnung eines gasförmigen Druckprodukts durch Tieftemperaturzerlegung von Luft |
DE102010055448A1 (de) * | 2010-12-21 | 2012-06-21 | Linde Ag | Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft |
FR2973487B1 (fr) * | 2011-03-31 | 2018-01-26 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procede et appareil de production d'un gaz de l'air sous pression par distillation cryogenique |
EP2520886A1 (de) | 2011-05-05 | 2012-11-07 | Linde AG | Verfahren und Vorrichtung zur Erzeugung eines gasförmigen Sauerstoff-Druckprodukts durch Tieftemperaturzerlegung von Luft |
DE102011112909A1 (de) | 2011-09-08 | 2013-03-14 | Linde Aktiengesellschaft | Verfahren und Vorrichtung zur Gewinnung von Stahl |
EP2600090B1 (de) * | 2011-12-01 | 2014-07-16 | Linde Aktiengesellschaft | Verfahren und Vorrichtung zur Erzeugung von Drucksauerstoff durch Tieftemperaturzerlegung von Luft |
DE102011121314A1 (de) | 2011-12-16 | 2013-06-20 | Linde Aktiengesellschaft | Verfahren zur Erzeugung eines gasförmigen Sauerstoff-Druckprodukts durch Tieftemperaturzerlegung von Luft |
US20130255313A1 (en) * | 2012-03-29 | 2013-10-03 | Bao Ha | Process for the separation of air by cryogenic distillation |
DE102012017488A1 (de) | 2012-09-04 | 2014-03-06 | Linde Aktiengesellschaft | Verfahren zur Erstellung einer Luftzerlegungsanlage, Luftzerlegungsanlage und zugehöriges Betriebsverfahren |
WO2014154339A2 (de) | 2013-03-26 | 2014-10-02 | Linde Aktiengesellschaft | Verfahren zur luftzerlegung und luftzerlegungsanlage |
EP2784420A1 (de) | 2013-03-26 | 2014-10-01 | Linde Aktiengesellschaft | Verfahren zur Luftzerlegung und Luftzerlegungsanlage |
EP2801777A1 (de) | 2013-05-08 | 2014-11-12 | Linde Aktiengesellschaft | Luftzerlegungsanlage mit Hauptverdichterantrieb |
DE102013017590A1 (de) | 2013-10-22 | 2014-01-02 | Linde Aktiengesellschaft | Verfahren zur Gewinnung eines Krypton und Xenon enthaltenden Fluids und hierfür eingerichtete Luftzerlegungsanlage |
FR3014545B1 (fr) * | 2013-12-05 | 2018-12-07 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procede et appareil de separation d’air par distillation cryogenique |
EP2963367A1 (de) | 2014-07-05 | 2016-01-06 | Linde Aktiengesellschaft | Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft mit variablem Energieverbrauch |
EP2963369B1 (de) | 2014-07-05 | 2018-05-02 | Linde Aktiengesellschaft | Verfahren und vorrichtung zur tieftemperaturzerlegung von luft |
US20160025408A1 (en) * | 2014-07-28 | 2016-01-28 | Zhengrong Xu | Air separation method and apparatus |
CN109442867B (zh) * | 2018-12-19 | 2023-11-07 | 杭州特盈能源技术发展有限公司 | 一种外增压内液化纯氮制取装置及方法 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2535132C3 (de) * | 1975-08-06 | 1981-08-20 | Linde Ag, 6200 Wiesbaden | Verfahren und Vorrichtung zur Herstellung von Drucksauerstoff durch zweistufige Tieftemperaturrektifikation von Luft |
FR2461906A1 (fr) * | 1979-07-20 | 1981-02-06 | Air Liquide | Procede et installation cryogeniques de separation d'air avec production d'oxygene sous haute pression |
DE3216510A1 (de) * | 1982-05-03 | 1983-11-03 | Linde Ag, 6200 Wiesbaden | Verfahren zur gewinnung von gasfoermigem sauerstoff unter erhoehtem druck |
JP2909678B2 (ja) * | 1991-03-11 | 1999-06-23 | レール・リキード・ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード | 圧力下のガス状酸素の製造方法及び製造装置 |
US5379599A (en) * | 1993-08-23 | 1995-01-10 | The Boc Group, Inc. | Pumped liquid oxygen method and apparatus |
US5355681A (en) * | 1993-09-23 | 1994-10-18 | Air Products And Chemicals, Inc. | Air separation schemes for oxygen and nitrogen coproduction as gas and/or liquid products |
FR2711778B1 (fr) * | 1993-10-26 | 1995-12-08 | Air Liquide | Procédé et installation de production d'oxygène et/ou d'azote sous pression. |
GB9404991D0 (en) * | 1994-03-15 | 1994-04-27 | Boc Group Plc | Cryogenic air separation |
US5737940A (en) * | 1996-06-07 | 1998-04-14 | Yao; Jame | Aromatics and/or heavies removal from a methane-based feed by condensation and stripping |
GB9609099D0 (en) * | 1996-05-01 | 1996-07-03 | Boc Group Plc | Oxygen steelmaking |
JP3703943B2 (ja) * | 1997-01-28 | 2005-10-05 | 大陽日酸株式会社 | 低純度酸素の製造方法及び装置 |
US5802873A (en) * | 1997-05-08 | 1998-09-08 | Praxair Technology, Inc. | Cryogenic rectification system with dual feed air turboexpansion |
JP3737611B2 (ja) * | 1997-08-08 | 2006-01-18 | 大陽日酸株式会社 | 低純度酸素の製造方法及び装置 |
US6009723A (en) * | 1998-01-22 | 2000-01-04 | Air Products And Chemicals, Inc. | Elevated pressure air separation process with use of waste expansion for compression of a process stream |
US5901579A (en) * | 1998-04-03 | 1999-05-11 | Praxair Technology, Inc. | Cryogenic air separation system with integrated machine compression |
FR2787560B1 (fr) * | 1998-12-22 | 2001-02-09 | Air Liquide | Procede de separation cryogenique des gaz de l'air |
DE19908451A1 (de) * | 1999-02-26 | 2000-08-31 | Linde Tech Gase Gmbh | Zweisäulensystem zur Tieftemperaturzerlegung von Luft |
GB9910701D0 (en) * | 1999-05-07 | 1999-07-07 | Boc Group Plc | Separation of air |
DE19933558C5 (de) * | 1999-07-16 | 2010-04-15 | Linde Ag | Dreisäulenverfahren und -vorrichtung zur Tieftemperaturzerlegung von Luft |
DE10103968A1 (de) * | 2001-01-30 | 2002-08-01 | Linde Ag | Drei-Säulen-System zur Tieftemperaturzerlegung von Luft |
DE10139097A1 (de) * | 2001-08-09 | 2003-02-20 | Linde Ag | Verfahren und Vorrichtung zur Erzeugung von Sauerstoff durch Tieftemperatur-Zerlegung von Luft |
FR2844344B1 (fr) * | 2002-09-11 | 2005-04-08 | Air Liquide | Installation de production de grandes quantites d'oxygene et/ou d'azote |
FR2854682B1 (fr) * | 2003-05-05 | 2005-06-17 | Air Liquide | Procede et installation de separation d'air par distillation cryogenique |
US6694776B1 (en) * | 2003-05-14 | 2004-02-24 | Praxair Technology, Inc. | Cryogenic air separation system for producing oxygen |
-
2006
- 2006-03-15 DE DE102006012241A patent/DE102006012241A1/de not_active Withdrawn
-
2007
- 2007-03-06 CN CN2007800135967A patent/CN101421575B/zh not_active Expired - Fee Related
- 2007-03-06 EP EP07723062A patent/EP1994344A1/de not_active Withdrawn
- 2007-03-06 WO PCT/EP2007/001917 patent/WO2007104449A1/de active Application Filing
- 2007-03-06 US US12/282,606 patent/US20090188280A1/en not_active Abandoned
- 2007-03-06 JP JP2008558680A patent/JP2009529648A/ja not_active Ceased
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102022894B (zh) * | 2009-09-21 | 2015-03-11 | 林德股份公司 | 用于低温分离空气的方法和设备 |
CN102022894A (zh) * | 2009-09-21 | 2011-04-20 | 林德股份公司 | 用于低温分离空气的方法和设备 |
CN103998883A (zh) * | 2011-09-20 | 2014-08-20 | 林德股份公司 | 低温分离空气的方法和设备 |
CN103998883B (zh) * | 2011-09-20 | 2016-12-14 | 林德股份公司 | 低温分离空气的方法和设备 |
CN105241178B (zh) * | 2014-07-05 | 2020-03-06 | 林德股份公司 | 用于通过低温分离空气获取压力气体产物的方法和装置 |
CN105241178A (zh) * | 2014-07-05 | 2016-01-13 | 林德股份公司 | 用于通过低温分离空气获取压力气体产物的方法和装置 |
CN105318663A (zh) * | 2014-07-05 | 2016-02-10 | 林德股份公司 | 用于低温分离空气的方法和装置 |
CN106716033A (zh) * | 2014-07-31 | 2017-05-24 | 林德股份公司 | 空气的低温分离方法和空气分离设备 |
CN106716033B (zh) * | 2014-07-31 | 2020-03-31 | 林德股份公司 | 空气的低温分离方法和空气分离设备 |
CN106931721A (zh) * | 2015-12-07 | 2017-07-07 | 林德股份公司 | 低温分离空气的方法和空气分离设备 |
CN106931721B (zh) * | 2015-12-07 | 2020-12-01 | 林德股份公司 | 低温分离空气的方法和空气分离设备 |
CN109564061A (zh) * | 2016-06-30 | 2019-04-02 | 乔治洛德方法研究和开发液化空气有限公司 | 用于通过低温分离空气以可变液体产量和功率使用来产生空气气体的方法和设备 |
CN107606875A (zh) * | 2016-07-12 | 2018-01-19 | 林德股份公司 | 通过低温分离空气产生压缩氮和液氮的方法和设备 |
Also Published As
Publication number | Publication date |
---|---|
JP2009529648A (ja) | 2009-08-20 |
WO2007104449A1 (de) | 2007-09-20 |
US20090188280A1 (en) | 2009-07-30 |
DE102006012241A1 (de) | 2007-09-20 |
EP1994344A1 (de) | 2008-11-26 |
CN101421575B (zh) | 2012-11-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101421575B (zh) | 用于低温分离空气的方法和装置 | |
US10480853B2 (en) | Method for the cryogenic separation of air and air separation plant | |
CN101883963B (zh) | 通过低温蒸馏从空气中高度灵活地生产气态和液态形式的气体的方法和设备 | |
US6962062B2 (en) | Process and apparatus for the separation of air by cryogenic distillation | |
JP2009529648A5 (zh) | ||
CN102022894B (zh) | 用于低温分离空气的方法和设备 | |
TW201607598A (zh) | 以可變能耗低溫分離空氣之方法與裝置 | |
CN111406192B (zh) | 通过与氮气膨胀机联动制动的膨胀机增压机来产生增压空气的深冷精馏方法与设备 | |
RU2681901C2 (ru) | Способ и устройство для низкотемпературного разделения воздуха | |
US20080289362A1 (en) | Process and apparatus for low-temperature air fractionation | |
TWI737770B (zh) | 藉由低溫分離空氣製造加壓氮及液態氮之方法及裝置 | |
EP2176610B1 (en) | Process for the separation of air by cryogenic distillation | |
CN103827613A (zh) | 用于借助低温蒸馏由加压空气生产气体的方法 | |
CN105318661B (zh) | 用于低温分离空气的方法和装置 | |
US5730004A (en) | Triple-column for the low-temperature separation of air | |
CN102901322A (zh) | 通过低温空气分离获得压力氮和压力氧的方法和装置 | |
EP3405726B1 (en) | Method and system for providing auxiliary refrigeration to an air separation plant | |
AU723241B2 (en) | Process and plant for air separation by cryogenic distillation | |
US10995983B2 (en) | Method and apparatus for obtaining a compressed gas product by cryogenic separation of air | |
US20120174625A1 (en) | Method and device for producing a gaseous pressurized oxygen product by cryogenic separation of air | |
US20240003620A1 (en) | Process and plant for cryogenic separation of air | |
TW202326047A (zh) | 獲取一種或數種空氣產物的方法及空氣分離設備 | |
CN106931721B (zh) | 低温分离空气的方法和空气分离设备 | |
US20070122272A1 (en) | Gas compressor, unit for separating a gas mixture incorporating such a compressor, and method of separating a gas mixture incorporating such a compressor | |
CN116538763A (zh) | 空分设备及空分方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 |