CN102016467A - Method and device for separating air by cryogenic distillation - Google Patents

Method and device for separating air by cryogenic distillation Download PDF

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Publication number
CN102016467A
CN102016467A CN2008800079868A CN200880007986A CN102016467A CN 102016467 A CN102016467 A CN 102016467A CN 2008800079868 A CN2008800079868 A CN 2008800079868A CN 200880007986 A CN200880007986 A CN 200880007986A CN 102016467 A CN102016467 A CN 102016467A
Authority
CN
China
Prior art keywords
pressure column
microscler
transferred
subcooler
medium pressure
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.)
Pending
Application number
CN2008800079868A
Other languages
Chinese (zh)
Inventor
P·卡瓦涅
A·吉亚尔
X·庞顿
D·瓦里尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Publication of CN102016467A publication Critical patent/CN102016467A/en
Pending legal-status Critical Current

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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
    • F25J3/04406—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
    • 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
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
    • 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
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
    • F25J3/04878—Side by side arrangement of multiple vessels in a main column system, wherein the vessels are normally mounted one upon the other or forming different sections of the same 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
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/0489—Modularity and arrangement of parts of the air fractionation unit, in particular of the cold box, e.g. pre-fabrication, assembling and erection, dimensions, horizontal layout "plot"
    • 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
    • F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
    • F25J2235/52—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being oxygen enriched compared to air ("crude oxygen")

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

The invention relates to an air separation apparatus that comprises a first member (A) having an elongated shape and including the medium-pressure column (1) of a dual column, on top of which are provided a reboiler-condenser (5) and an auxiliary column (2) containing at least one theoretical plate defining the lower portion of the low-pressure column, a second member (B) having an elongated shape and defining the rest of the low-pressure column, means (11) for supplying air from the main exchange line to the medium-pressure column and a subcooler (6) provided under the first or second member having an elongated shape, means for supplying a tank liquid (13) from the medium-pressure column to the subcooler and then to the second member having an elongated shape and/or a means for supplying a liquid from the head of the medium-pressure column to the subcooler and then to the second member having an elongated shape, and means for supplying a gas from the head of the second member having an elongated shape to the subcooler.

Description

Be used for method and apparatus by separating air by cryogenic distillation
Technical field
The present invention relates to a kind of method and apparatus that is used for by separating air by cryogenic distillation.Relate to the equipment that a kind of use comprises two air separation of medium pressure column and lower pressure column especially, this medium pressure column is in the same place by reboiler-condenser thermally coupled with lower pressure column.
Background technology
EP-A-1078212 has described a kind of like this equipment, and heat exchanger is positioned below the lower pressure column in this equipment, and this lower pressure column is arranged in the next door of medium pressure column.
Summary of the invention
According to the present invention, a kind of air separation equipment is provided, this air separation equipment comprises: main exchange pipeline; The first microscler member, this first microscler member comprises the medium pressure column of double tower, and reboiler-condenser and stand-by still are arranged at the top of this medium pressure column, and this stand-by still holds at least one theoretical tray that constitutes the bottom of lower pressure column; The second microscler member, this second microscler member constitutes the remainder of lower pressure column; Be used for air is transferred to from main exchange pipeline the device of medium pressure column; Be used for overhead gas is transferred to from medium pressure column the device of reboiler-condenser; The overhead gas that is used for being condensed is transferred to the device of medium pressure column from reboiler; Be used for overhead gas is transferred to from stand-by still the device of the storage tank of the second microscler member; Be used for liquid in storage tank (liquide de cuve) is transferred to from the second microscler member device at the top of stand-by still; Place the subcooler of the first microscler member or second member below; Be used for liquid in storage tank is transferred to subcooler and is transferred to the device of the second microscler member then and/or is used for overhead liquid is transferred to subcooler and is transferred to the device of the second microscler member then from medium pressure column from medium pressure column; With the device that is used for overhead gas is transferred to from the second microscler member subcooler.
Preferably, subcooler is arranged in microscler second member below.
Subcooler and the second microscler member can be arranged in length be no more than 35 meters or even 30 meters group body in.
This structure makes it possible to by following steps take best the volume of ice chest:
The height of two tower portions of-balance section,
-arrange subcooler dexterously so that make full use of the cross section of ice chest,
-medium pressure column is placed on the ground allowing this tower of two-phase air feed,
-guarantee satisfactorily to give the pump that is used to promote liquid to load liquid,
-make it possible to have and comprise that parallel portion's section and steeple (minaret), height are less than 35m or even 30m and use the ice chest of corrugated cross structure packing (garnissages structur é sondul é s-crois é s) simultaneously.
Description of drawings
Describe the present invention in further detail below in conjunction with accompanying drawing, this accompanying drawing shows according to air separation equipment of the present invention.
The specific embodiment
Air separation equipment comprises first microscler member A and the second microscler member B.The first microscler member A comprises that the medium pressure column 1 of reboiler condenser 5 is arranged at the top of double tower.Stand-by still is positioned at the top of this reboiler, accommodates the theoretical tray of some corrugated cross structure packings, and this theoretical tray constitutes the bottom 2 of lower pressure column.
The second microscler member B comprises the remainder of lower pressure column 3, and this remainder also accommodates corrugated cross structure packing.
Subcooler 6 is positioned at the below of second member.
This equipment comprises the device 11 that is used for the air through purifying, compress and cooling off of main exchange pipeline is transferred to medium pressure column.Nitrogen from cat head is transferred to reboiler 5, and condensation in this reboiler.
Gaseous oxygen 17 extracts from the storage tank of stand-by still.
Oxygen rich gas 15 extracts and is transferred to the storage tank of tower 3 from the top of stand-by still.Be transported to the top of stand-by still 2 after compressing in pump P from the liquid in storage tank 13 of tower 3.
The first microscler member is disposed in ground level.The second microscler member is elevated by metal framework, and this framework self is disposed in ground level.This framework is used to support cooler simultaneously.Pump P also is positioned ground level.
Like this, the top of the top of stand-by still 2 and microscler second member is positioned at identical height substantially.
Liquid-rich from the storage tank of medium pressure column is cooled off in subcooler before being transferred to the second microscler member.
Equally, one or more nitrogen-rich liquids from the top of medium pressure column can be cooled before the top that is transferred to the second microscler member there.
At least a overhead gas from the second microscler member before being transferred to main exchange pipeline in subcooler by heat again.

Claims (3)

1. an equipment that is used for separation of air comprises: main exchange pipeline; Microscler first member (A), this first microscler member comprises the medium pressure column (1) of double tower, and reboiler-condenser (5) and stand-by still (2) are arranged at the top of this medium pressure column, and this stand-by still holds at least one theoretical tray that constitutes the bottom of lower pressure column; Microscler second member (B), this second microscler member constitutes the remainder of lower pressure column; Be used for air is transferred to from main exchange pipeline the device (11) of medium pressure column; Be used for overhead gas is transferred to from medium pressure column the device of reboiler-condenser; The overhead gas that is used for being condensed is transferred to the device of medium pressure column from reboiler; Be used for overhead gas (15) is transferred to from stand-by still the device of the storage tank of the second microscler member; Be used for liquid in storage tank (13) is transferred to from the second microscler member device at the top of stand-by still; Place the subcooler (6) of the first microscler member or second member below; Be used for liquid in storage tank is transferred to subcooler and is transferred to the device of the second microscler member then and/or is used for overhead liquid is transferred to subcooler and is transferred to the device of the second microscler member then from medium pressure column from medium pressure column; With the device that is used for overhead gas is transferred to from the second microscler member subcooler.
2. equipment according to claim 1 is characterized in that, described subcooler (6) is arranged in the below of microscler second member (B).
3. equipment according to claim 2 is characterized in that, described subcooler (6) and microscler second member (B) be arranged in length be no more than 35 meters or even 30 meters group body in.
CN2008800079868A 2007-03-12 2008-02-20 Method and device for separating air by cryogenic distillation Pending CN102016467A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR0753767 2007-03-12
FR0753767A FR2913758B3 (en) 2007-03-12 2007-03-12 METHOD AND APPARATUS FOR AIR SEPARATION BY CRYOGENIC DISTILLATION
FR0756022 2007-06-26
FR0756022A FR2918162A1 (en) 2007-03-12 2007-06-26 Air separation apparatus for cold box, has liquid supplying unit supplying liquid from head of medium-pressure column to subcooler and elongated shape member, and gas supplying unit supplying gas from head of member to subcooler
PCT/FR2008/050280 WO2008110732A2 (en) 2007-03-12 2008-02-20 Method and device for separating air by cryogenic distillation

Publications (1)

Publication Number Publication Date
CN102016467A true CN102016467A (en) 2011-04-13

Family

ID=39760146

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008800079868A Pending CN102016467A (en) 2007-03-12 2008-02-20 Method and device for separating air by cryogenic distillation

Country Status (10)

Country Link
US (1) US20100139318A1 (en)
EP (1) EP2132509B1 (en)
JP (1) JP2010521646A (en)
CN (1) CN102016467A (en)
BR (1) BRPI0807965A2 (en)
FR (2) FR2913758B3 (en)
PL (1) PL2132509T3 (en)
RU (1) RU2479805C2 (en)
TR (1) TR201810844T4 (en)
WO (1) WO2008110732A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010012920A1 (en) * 2010-03-26 2011-09-29 Linde Aktiengesellschaft Apparatus for the cryogenic separation of air
CN209524679U (en) * 2018-10-29 2019-10-22 乔治洛德方法研究和开发液化空气有限公司 By low temperature distillation come the equipment of air distillation
CN117980679A (en) * 2021-09-01 2024-05-03 林德有限责任公司 Facility and method for cryogenic air separation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2633272A1 (en) * 1976-07-23 1978-01-26 Linde Ag Dual-pressure rectification using two columns - the first having the high-pressure stage and part of the low-pressure
CA2235054A1 (en) * 1997-04-11 1998-10-11 Olivier Bruder System for separating a gaseous mixture by distillation
CN1232165A (en) * 1998-01-22 1999-10-20 气体产品与化学公司 Efficient process to produce oxygen
US6134915A (en) * 1999-03-30 2000-10-24 The Boc Group, Inc. Distillation column arrangement for air separation plant
US6148637A (en) * 1998-02-06 2000-11-21 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Air-distillation plant and corresponding cold box
JP2004251569A (en) * 2003-02-21 2004-09-09 Hitachi Ltd Cryogenic air separator

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU851034A1 (en) * 1979-09-04 1981-07-30 Предприятие П/Я А-3605 Unit for air separation
RU2100717C1 (en) * 1994-06-30 1997-12-27 Открытое акционерное общество криогенного машиностроения Method of production of nitrogen under pressure
US6205815B1 (en) * 1997-04-11 2001-03-27 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Plant for separation of a gas mixture by distillation
FR2778234B1 (en) 1998-04-30 2000-06-02 Air Liquide AIR DISTILLATION SYSTEM AND CORRESPONDING COLD BOX
FR2778233B1 (en) * 1998-04-30 2000-06-02 Air Liquide AIR DISTILLATION SYSTEM AND CORRESPONDING COLD BOX
ATE342478T1 (en) * 1999-04-05 2006-11-15 Air Liquide DEVICE WITH VARIABLE LOADING AND CORRESPONDING METHOD FOR SEPARATING A FUEL MIXTURE
FR2780147B1 (en) * 1999-06-29 2001-01-05 Air Liquide AIR DISTILLATION SYSTEM AND CORRESPONDING COLD BOX
FR2807150B1 (en) * 2000-04-04 2002-10-18 Air Liquide PROCESS AND APPARATUS FOR PRODUCING OXYGEN ENRICHED FLUID BY CRYOGENIC DISTILLATION
DE10113790A1 (en) * 2001-03-21 2002-09-26 Linde Ag Three-column system for low-temperature air separation
US7296437B2 (en) * 2002-10-08 2007-11-20 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for separating air by cryogenic distillation and installation for implementing this process

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2633272A1 (en) * 1976-07-23 1978-01-26 Linde Ag Dual-pressure rectification using two columns - the first having the high-pressure stage and part of the low-pressure
CA2235054A1 (en) * 1997-04-11 1998-10-11 Olivier Bruder System for separating a gaseous mixture by distillation
CN1232165A (en) * 1998-01-22 1999-10-20 气体产品与化学公司 Efficient process to produce oxygen
US6148637A (en) * 1998-02-06 2000-11-21 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Air-distillation plant and corresponding cold box
US6134915A (en) * 1999-03-30 2000-10-24 The Boc Group, Inc. Distillation column arrangement for air separation plant
JP2004251569A (en) * 2003-02-21 2004-09-09 Hitachi Ltd Cryogenic air separator

Also Published As

Publication number Publication date
WO2008110732A2 (en) 2008-09-18
JP2010521646A (en) 2010-06-24
FR2913758B3 (en) 2009-11-13
BRPI0807965A2 (en) 2014-06-10
EP2132509A2 (en) 2009-12-16
US20100139318A1 (en) 2010-06-10
FR2913758A1 (en) 2008-09-19
WO2008110732A3 (en) 2010-03-11
EP2132509B1 (en) 2018-06-27
FR2918162A1 (en) 2009-01-02
PL2132509T3 (en) 2018-11-30
RU2479805C2 (en) 2013-04-20
RU2009137584A (en) 2011-04-20
TR201810844T4 (en) 2018-08-27

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Application publication date: 20110413