EP4652421A2 - Procédé de liquéfaction d'un débit riche en dioxyde de carbone - Google Patents
Procédé de liquéfaction d'un débit riche en dioxyde de carboneInfo
- Publication number
- EP4652421A2 EP4652421A2 EP24700403.9A EP24700403A EP4652421A2 EP 4652421 A2 EP4652421 A2 EP 4652421A2 EP 24700403 A EP24700403 A EP 24700403A EP 4652421 A2 EP4652421 A2 EP 4652421A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- refrigerant
- pressure
- exchanger
- temperature
- heat exchanger
- 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.)
- Withdrawn
Links
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
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
- F25J1/0027—Oxides of carbon, e.g. CO2
-
- 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
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0047—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle
- F25J1/0052—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream
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- 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
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0047—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle
- F25J1/0052—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream
- F25J1/0057—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream after expansion of the liquid refrigerant stream with extraction of work
-
- 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
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/006—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the refrigerant fluid used
- F25J1/0095—Oxides of carbon, e.g. CO2
-
- 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
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/006—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the refrigerant fluid used
- F25J1/0097—Others, e.g. F-, Cl-, HF-, HClF-, HCl-hydrocarbons etc. or mixtures thereof
-
- 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
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0203—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a single-component refrigerant [SCR] fluid in a closed vapor compression cycle
- F25J1/0204—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a single-component refrigerant [SCR] fluid in a closed vapor compression cycle as a single flow SCR cycle
-
- 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
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0211—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle
- F25J1/0212—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle as a single flow MCR cycle
Definitions
- the present invention relates to a process for liquefying a flow rich in carbon dioxide.
- a flow rich in carbon dioxide contains at least 50 mol% carbon dioxide, or even at least 90 mol% carbon dioxide.
- a mixed refrigerant consists of at least two components.
- mixed refrigerant processes use fewer refrigerant compressors and reduce the outlet pressure of the compressors.
- mixed refrigerants are composed of nitrogen and hydrocarbons (methane, ethane or ethylene, propane, propylene, iso-butane or n-butane, etc.).
- nitrogen and hydrocarbons methane, ethane or ethylene, propane, propylene, iso-butane or n-butane, etc.
- these components should be avoided to minimize industrial risks and safety zones.
- GWP global warming potential
- refrigerants must have a boiling point between 40°C and -50°C at a pressure range between 5 and 50bar.
- Carbon dioxide (R744) with a normal melting point of -78°C and a GWP of 1 can be used.
- a process for liquefying a flow containing at least 50 mol% of CO2, or even at least 90 mol% of CO2 in which the liquefied gas leaves the liquefaction process at a temperature between -45 and -55°C using a single cooling cycle whose refrigerant is CO2 or CO2 as well as at least one other refrigerant chosen from the list: propane, 2,3,3,3-tetrafluoropropene, 1, 3,3,3-tetrafluoropropene and fluoromethane
- the flow to be liquefied is sent to a heat exchanger where it liquefies.
- the refrigerant is introduced into the heat exchanger at a temperature T1, at a pressure P1 between 40 and 90 bars and a density greater than 500 kg/m3 and subcooled to an intermediate temperature between -20 and 10°C o
- a part of the refrigerant subcooled at pressure P1 leaves the exchanger at a temperature T5 is expanded to an intermediate pressure P5 and introduced into the heat exchanger where it vaporizes by indirect heat exchange with the flow to be liquefied and the refrigerant at pressure P1 o
- Another part of the refrigerant is subcooled in the heat exchanger to a temperature T 10 between -45 to -55°C, where T 10>T5>T 1, expanded to a pressure P10 where P10 ⁇ P5 ⁇ P1 and introduced into the heat exchanger where it vaporizes by indirect heat exchange with the flow to be liquefied and the refrigerant at pressure P1 o
- the at least one first compression stage and the at least one second compression stage are part of a centrifugal compressor.
- the heat exchanger is a brazed aluminum plate and fin exchanger.
- FIG.1 illustrates a process for liquefying a CO2-rich gas where two parts of the cycle refrigerant are each expanded to a different pressure, vaporized at that pressure and sent to the cycle compressor to be compressed
- FIG.2 illustrates a process for liquefying a CO2-rich gas where three parts of the cycle refrigerant are each expanded to a different pressure, vaporized at that pressure and sent to the cycle compressor to be compressed
- FIG.3 illustrates a process for liquefying a CO2-rich gas where four parts of the cycle refrigerant are each expanded to a different pressure, vaporized at that pressure and sent to the cycle compressor to be compressed
- FIG. 4 is a table of a simulation of a process according to the prior art
- FIG. 5 is a table of a simulation of a process according to the invention.
- FIG. 6 is a table of a simulation of a process according to the invention
- the process uses a single refrigeration cycle to liquefy the CO2, this cycle preferably being closed.
- a high pressure refrigerant 5 P1 (between 40 and 90 bar) comprising at least CO2 and optionally at least one other refrigerant which can be chosen from the list: R1234-yf, R1234-ze, R290, R41 at an ambient temperature T1 is sent to a heat exchanger E1. Part 9 of this refrigerant is cooled in the exchanger E51 until the cold end at a temperature T10 where -55°C ⁇ T10 ⁇ -45°C. The refrigerant 9 is expanded in a valve or a turbine up to a pressure P10 where 4.2 barg ⁇ P10 ⁇ 4.6 barg.
- Refrigerant 9 is then vaporized in a low pressure passage of heat exchanger E51 and superheated. Then it is sent to at least a first stage of a C 10 compressor.
- the refrigerant 7 is then vaporized in a medium pressure passage of the heat exchanger E51. Then it is sent to at least a second stage of a compressor C10, after being mixed with the flow of refrigerant 9 compressed in the compressor C10 up to P5. The mixture is compressed in compressor C10 to pressure P1 and then is cooled to increase its density to at least 500 kg/m3 at ambient temperature T1 by indirect heat exchange with a refrigerant flow (e.g. water or air) in an E10 heat exchanger.
- the refrigerant after this densification can be in liquid or supercritical form.
- the method according to the invention may include expanding a portion of the cooled refrigerant to an intermediate temperature up to between two and four pressure levels. At each level, the refrigerant is vaporized and returned to a compressor stage at a temperature at least 10°C above its dew point.
- Each compression stage compresses the flow of refrigerant arriving directly from the exchanger to the pressure of the inlet of the stage and in addition the refrigerant compressed in the previous stage(s).
- FIG. 4 is a table of a simulation of a process using the general principle of FR2975478 where the subcooled refrigerant leaves the exchanger at a single temperature, taken as -52.3°C, no value being given in the text.
- the power of the C3 compressor is 7984kW.
- FIG. 5 is a table of a simulation of a process according to the invention, using pure CO2 as a refrigerant.
- Flow 7 is at -11.67°C so flow 5 has been subcooled to a temperature between -20°C and 10°C, as required by claim 1, before being divided.
- Flow 9 is subcooled down to -54.5°C, therefore between -45°C and -55°C.
- the power of the C10 compressor is calculated at 7693kW, therefore a reduction of 3.6%.
- FIG. 6 is a table of a simulation of a process according to the invention, using CO2 and propane as refrigerant.
- Flow 7 is at -3.5°C so flow 5 has been subcooled to a temperature between -20°C and 10°C, as required by claim 1, before being divided.
- Flow 9 is subcooled down to -52.5°C, therefore between -45°C and -55°C.
- the power of the C10 compressor is calculated at 6039kW, therefore a reduction of 24.4%.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Carbon And Carbon Compounds (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2300516A FR3145207B1 (fr) | 2023-01-19 | 2023-01-19 | Procédé de liquéfaction d’un débit riche en dioxyde de carbone |
| PCT/EP2024/050342 WO2024153491A2 (fr) | 2023-01-19 | 2024-01-09 | Procédé de liquéfaction d'un débit riche en dioxyde de carbone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4652421A2 true EP4652421A2 (fr) | 2025-11-26 |
Family
ID=85727012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP24700403.9A Withdrawn EP4652421A2 (fr) | 2023-01-19 | 2024-01-09 | Procédé de liquéfaction d'un débit riche en dioxyde de carbone |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4652421A2 (fr) |
| JP (1) | JP2026503413A (fr) |
| FR (1) | FR3145207B1 (fr) |
| WO (1) | WO2024153491A2 (fr) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6041621A (en) * | 1998-12-30 | 2000-03-28 | Praxair Technology, Inc. | Single circuit cryogenic liquefaction of industrial gas |
| WO2005028975A2 (fr) * | 2003-09-23 | 2005-03-31 | Statoil Asa | Procede de liquefaction de gaz naturel |
| CA2567052C (fr) * | 2004-06-23 | 2013-09-24 | Exxonmobil Upstream Research Company | Procede de liquefaction de refrigerant mixte |
| FR2884305A1 (fr) * | 2005-04-08 | 2006-10-13 | Air Liquide | Procede de recuperation et liquefaction du co2 contenu dans un gaz pauvre en co2 |
| WO2011117655A2 (fr) * | 2010-03-25 | 2011-09-29 | The University Of Manchester | Processus de réfrigération |
| FR2975478B1 (fr) | 2011-05-18 | 2015-05-15 | Air Liquide | Procede et appareil de liquefaction d'un debit gazeux riche en dioxyde de carbone |
| WO2017051021A1 (fr) * | 2015-09-24 | 2017-03-30 | Linde Aktiengesellschaft | Procédé pour refroidir, liquéfier ou traiter un gaz et mélange réfrigérant correspondant |
| FR3068770B1 (fr) * | 2017-07-05 | 2020-08-14 | Engie | Dispositif et procede de liquefaction d’un gaz naturel ou d’un biogaz |
-
2023
- 2023-01-19 FR FR2300516A patent/FR3145207B1/fr active Active
-
2024
- 2024-01-09 JP JP2025537607A patent/JP2026503413A/ja active Pending
- 2024-01-09 EP EP24700403.9A patent/EP4652421A2/fr not_active Withdrawn
- 2024-01-09 WO PCT/EP2024/050342 patent/WO2024153491A2/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024153491A3 (fr) | 2024-10-03 |
| FR3145207B1 (fr) | 2025-01-31 |
| JP2026503413A (ja) | 2026-01-29 |
| FR3145207A1 (fr) | 2024-07-26 |
| WO2024153491A2 (fr) | 2024-07-25 |
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