摘要:
A modular compression system is provided. The modular compression system includes at least one first compression apparatus (212) coupled to a first platform (222), and at least one second compression apparatus (232) coupled to a second platform (238), the at least one second compression apparatus is coupled in series flow communication with the at least one first compression apparatus.
摘要:
A process for separating air by cryogenic distillation in a column system comprising a high pressure column and a low pressure column comprises compressing all the feed air in a first compressor (1) to a first outlet pressure, sending a first part of the air at the first outlet pressure to a second compressor (3) and compressing the air to a second outlet pressure, cooling at least part of the air at the second outlet pressure in a heat exchanger (5) liquefying at least part of the air at the second outlet pressure and sending the liquefied air to at least one column of the column system wherein at least 50% of the liquefied air sent to the column system has been compressed in the second compressor, cooling a second part of the air (12) at the first outlet pressure in the heat exchanger and expanding at least part of the second part of the air in an expander (13) from the first outlet pressure to the pressure of a column (30,31) of column system and sending the expanded air to that column, at least partially vaporizing an auxiliary fluid (6), eventually further warming said auxiliary fluid in the heat exchanger, sending at least part of this auxiliary fluid to a third compressor (8) to a third outlet pressure, introducing at least part (9) of said auxiliary fluid at said third outlet pressure in the heat exchanger, cooling said auxiliary fluid and at least partially liquefying said auxiliary fluid, removing said auxiliary stream (10) from the heat exchanger and expanding (16) it to a fourth pressure level before reintroducing it in the heat exchanger where it will be partially vaporized as above-mentioned, removing liquid (20) from a column (31) of the column system and vaporizing the liquid by heat exchange in the heat exchanger.
摘要:
In a process for separation of air by cryogenic distillation integrated with an associated process, air is separated in a separation unit (1), fluid is sent from the separation unit to an associated process, steam (3) is derived from the associated process, at least part of the steam is used in the separation unit and at least one fluid stream (11) is sent from the air separation unit to the atmosphere, at least when the steam is used in the air separation unit.
摘要:
In a process for separation of air by cryogenic distillation integrated with an associated process, air is separated in a separation unit (1), fluid is sent from the separation unit to an associated process, steam (3) is derived from the associated process, at least part of the steam is used in the separation unit and at least one fluid stream (11) is sent from the air separation unit to the atmosphere, at least when the steam is used in the air separation unit.
摘要:
Das Verfahren und die Vorrichtung dienen der Gewinnung von gasförmigem und flüssigem Stickstoff mit variablem Anteil des Flüssigprodukts durch Tieftemperaturzerlegung von Luft. Das Destilliersäulensystem weist eine Einzelsäule (4) auf. Einsatzluft (1) wird in einem Luftverdichter verdichtet, in einem Hauptwärmetauscher (2) abgekühlt und der Einzelsäule (4) zugeführt (3). Eine stickstoffreiche Fraktion (5, 7, 8) wird aus dem Destilliersäulensystem abgezogen und mindestens zu einem erstem Teil in einem Kreislaufverdichter (9) verdichtet. Der erste Teil (12, 13) der stickstoffreichen Fraktion (5, 7, 8) wird stromabwärts des Kreislaufverdichters (9) dem Verflüssigungsraum eines Kondensator-Verdampfers (14) zugeführt und dort unter einem Druck kondensiert, der höher als der Betriebsdruck der Einzelsäule (4) ist. Hierbei wird stickstoffreiche Flüssigkeit (15, 16) gebildet. Eine flüssige sauerstoffangereicherte Fraktion (228, 231) aus dem Destilliersäulensystem wird im Verdampfungsraum des Kondensator-Verdampfers (14) mindestens teilweise verdampft. Aus dem im Verdampfungsraum des Kondensator-Verdampfers (14) gebildeten Dampf (232) wird ein erstes sauerstoffangereichertes Gas (234,) erzeugt, in die Einzelsäule (4) eingeleitet und dort als aufsteigender Dampf verwendet. Ein zweiter Teil (19, 20) der stickstoffreichen Fraktion (5, 7, 8) wird zumindest zeitweise als gasförmiges Stickstoffprodukt abgezogen. Ein Teil (18) der stickstoffreichen Flüssigkeit (15, 16) aus dem Kondensator-Verdampfer (14) wird zumindest zeitweise als Flüssigprodukt abgezogen. Der Verdampfungsraum des Kondensator-Verdampfers (14) wird zumindest zeitweise unter einem Druck betrieben, der höher als der Betriebsdruck der Einzelsäule (4) ist. Ein zweites sauerstoffangereichertes Gas (221, 521) wird aus einer der Säulen (546) des Destilliersystems und/oder aus dem Verdampfungsraum des Kondensator-Verdampfers (14) entnommen, arbeitsleistend entspannt (23) und im Hauptwärmetauscher (2) angewärmt.
摘要:
A system for producing enriched air wherein a multistage compressor is integrated with a cryogenic air separation plant and serves to compress feed air for the plant while also compressing both air and oxygen fluid from the plant to produce the enriched air
摘要:
The present invention is directed to an air separation system for the recovery of pressurized, substantially pure oxygen gas. The system uses a single pressure distillation column and bums a nitrogen-oxygen waste stream to provide power for the air compressor, the oxygen product compressor and electric generation. The distillation column has a split feed to develop reflux and reboil and to provide Initial separation of the liquid and vapor components of the column.
摘要:
What is proposed is a method for the cryogenic separation of air (AIR) in an air separation plant (100) having a main air compressor (2), a main heat exchanger (4) and a distillation column system (10) having a low-pressure column (11) operated at a first pressure and a high-pressure column (12) operated at a second pressure, in which a feed air flow (a), which comprises all of the feed air fed to the air separation plant (100, 200), is compressed in the main air compressor (2) to a third pressure that is at least 2 bar above the second pressure, wherein a first fraction (c) of the compressed feed air flow (b) is cooled at least once in the main heat exchanger (4) and is expanded from the third pressure in a first expansion turbine (5), a second fraction (d) is cooled at least once in the main heat exchanger (4) and is expanded from the third pressure in a second expansion turbine (6), and a third fraction (e) is further compressed to a fourth pressure, is cooled at least once in the main heat exchanger (4) and is expanded from the fourth pressure, wherein air of the first fraction (c) and/or of the second fraction (d) and/or of the third fraction (e) is fed into the distillation column system (10) at the first and/or at the second pressure. It is provided that the third fraction (e) is further compressed to the fourth pressure in sequence in a recompressor (7), a hot first turbine booster and a second turbine booster, and for expanding the third fraction (e) use is made of a dense fluid expander (8) to which the third fraction (e) is fed in the liquid state and at the fourth pressure. The invention also relates to an air separation plant (100).