FR3118145B1 - Method for restarting an air separation device - Google Patents

Method for restarting an air separation device Download PDF

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Publication number
FR3118145B1
FR3118145B1 FR2014066A FR2014066A FR3118145B1 FR 3118145 B1 FR3118145 B1 FR 3118145B1 FR 2014066 A FR2014066 A FR 2014066A FR 2014066 A FR2014066 A FR 2014066A FR 3118145 B1 FR3118145 B1 FR 3118145B1
Authority
FR
France
Prior art keywords
restarting
air separation
column
separation device
air
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.)
Active
Application number
FR2014066A
Other languages
French (fr)
Other versions
FR3118145A1 (en
Inventor
Benoit Davidian
Jean-Marc Peyron
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
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 Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to FR2014066A priority Critical patent/FR3118145B1/en
Priority to CN202180086705.8A priority patent/CN116685822A/en
Priority to US18/269,367 priority patent/US20240068746A1/en
Priority to EP21839499.7A priority patent/EP4267900A1/en
Priority to PCT/EP2021/086108 priority patent/WO2022136088A1/en
Publication of FR3118145A1 publication Critical patent/FR3118145A1/en
Application granted granted Critical
Publication of FR3118145B1 publication Critical patent/FR3118145B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
    • F25J3/04812—Different modes, i.e. "runs" of operation
    • F25J3/04818—Start-up of the process
    • 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
    • F25J3/044—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 single pressure main column system only
    • 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
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/40—Processes or apparatus involving steps for recycling of process streams the recycled stream being air

Landscapes

  • 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

Titre : Procédé de redémarrage d’un appareil de séparation d’air Dans un procédé de redémarrage d’un appareil de séparation d’air comprenant un système de colonnes (K1, K2) comprenant au moins une première colonne de distillation (K1) et un échangeur de chaleur (3) disposé en dessous de la première colonne avec son axe principal à la verticale et avec son bout froid adjacent à la cuve de la première colonne, pendant le redémarrage, on envoie de l’air à l’échangeur et on envoie au moins une partie (5) de l’air refroidi à l’atmosphère. Figure de l’abrégé : Fig. 1Title: Method for restarting an air separation apparatus In a method for restarting an air separation apparatus comprising a column system (K1, K2) comprising at least a first distillation column (K1) and a heat exchanger (3) arranged below the first column with its main axis vertical and with its cold end adjacent to the tank of the first column, during the restart, air is sent to the exchanger and at least part (5) of the cooled air is sent to the atmosphere. Abstract Figure: Fig. 1

FR2014066A 2020-12-23 2020-12-23 Method for restarting an air separation device Active FR3118145B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR2014066A FR3118145B1 (en) 2020-12-23 2020-12-23 Method for restarting an air separation device
CN202180086705.8A CN116685822A (en) 2020-12-23 2021-12-16 Method for restarting an air separation unit
US18/269,367 US20240068746A1 (en) 2020-12-23 2021-12-16 Method for restarting an air separation unit
EP21839499.7A EP4267900A1 (en) 2020-12-23 2021-12-16 Method for restarting an air separation unit
PCT/EP2021/086108 WO2022136088A1 (en) 2020-12-23 2021-12-16 Method for restarting an air separation unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2014066 2020-12-23
FR2014066A FR3118145B1 (en) 2020-12-23 2020-12-23 Method for restarting an air separation device

Publications (2)

Publication Number Publication Date
FR3118145A1 FR3118145A1 (en) 2022-06-24
FR3118145B1 true FR3118145B1 (en) 2023-03-03

Family

ID=74592272

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2014066A Active FR3118145B1 (en) 2020-12-23 2020-12-23 Method for restarting an air separation device

Country Status (5)

Country Link
US (1) US20240068746A1 (en)
EP (1) EP4267900A1 (en)
CN (1) CN116685822A (en)
FR (1) FR3118145B1 (en)
WO (1) WO2022136088A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3211070B2 (en) * 1994-02-01 2001-09-25 日本エア・リキード株式会社 Method and apparatus for producing high-purity nitrogen gas
FR2831249A1 (en) * 2002-01-21 2003-04-25 Air Liquide Air separation in an apparatus containing at least two columns which can be operated normally or with air expanded to a low pressure in the turbine before distillation in the low pressure column
CN201173660Y (en) * 2008-03-12 2008-12-31 杭州福斯达气体设备有限公司 Middle and small sized multi- behavior energy-saving -type air separation equipment
EP3438585A3 (en) * 2017-08-03 2019-04-17 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for defrosting a device for air separation by cryogenic distillation and device adapted to be defrosted using this method
WO2019126927A1 (en) 2017-12-25 2019-07-04 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Single packaged air separation apparatus with reverse main heat exchanger

Also Published As

Publication number Publication date
CN116685822A (en) 2023-09-01
FR3118145A1 (en) 2022-06-24
WO2022136088A1 (en) 2022-06-30
US20240068746A1 (en) 2024-02-29
EP4267900A1 (en) 2023-11-01

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PLSC Publication of the preliminary search report

Effective date: 20220624

RM Correction of a material error

Effective date: 20220906

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