EP3065847A1 - Unite et procede de purification de c02 par adsorption - Google Patents
Unite et procede de purification de c02 par adsorptionInfo
- Publication number
- EP3065847A1 EP3065847A1 EP14806024.7A EP14806024A EP3065847A1 EP 3065847 A1 EP3065847 A1 EP 3065847A1 EP 14806024 A EP14806024 A EP 14806024A EP 3065847 A1 EP3065847 A1 EP 3065847A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- hydrogen
- depleted
- methane
- carbon monoxide
- 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- Withdrawn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
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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
- 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
- F25J3/0228—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 characterised by the separated product stream
- F25J3/0266—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 characterised by the separated product stream separation of carbon dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/229—Integrated processes (Diffusion and at least one other process, e.g. adsorption, absorption)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
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- 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
- F25J3/0204—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 characterised by the feed stream
- F25J3/0223—H2/CO mixtures, i.e. synthesis gas; Water gas or shifted synthesis gas
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- 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
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- 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
- F25J3/0228—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 characterised by the separated product stream
- F25J3/0233—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 characterised by the separated product stream separation of CnHm with 1 carbon atom or more
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- 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
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- 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
- F25J3/0228—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 characterised by the separated product stream
- F25J3/0252—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 characterised by the separated product stream separation of hydrogen
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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
- 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
- F25J3/0228—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 characterised by the separated product stream
- F25J3/0261—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 characterised by the separated product stream separation of carbon monoxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/22—Carbon dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/108—Hydrogen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/502—Carbon monoxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7022—Aliphatic hydrocarbons
- B01D2257/7025—Methane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40007—Controlling pressure or temperature swing adsorption
- B01D2259/40009—Controlling pressure or temperature swing adsorption using sensors or gas analysers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
- B01D2259/40043—Purging
- B01D2259/4005—Nature of purge gas
- B01D2259/40052—Recycled product or process gas
- B01D2259/40054—Recycled product or process gas treated before its reuse
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- 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
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/40—Processes or apparatus using other separation and/or other processing means using hybrid system, i.e. combining cryogenic and non-cryogenic separation techniques
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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
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/60—Processes or apparatus using other separation and/or other processing means using adsorption on solid adsorbents, e.g. by temperature-swing adsorption [TSA] at the hot or cold end
- F25J2205/66—Regenerating the adsorption vessel, e.g. kind of reactivation gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/80—Processes or apparatus using other separation and/or other processing means using membrane, i.e. including a permeation step
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
- F25J2215/00—Processes characterised by the type or other details of the product stream
- F25J2215/04—Recovery of liquid products
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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
- F25J2220/00—Processes or apparatus involving steps for the removal of impurities
- F25J2220/80—Separating impurities from carbon dioxide, e.g. H2O or water-soluble contaminants
- F25J2220/82—Separating low boiling, i.e. more volatile components, e.g. He, H2, CO, Air gases, CH4
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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
- F25J2245/00—Processes or apparatus involving steps for recycling of process streams
- F25J2245/90—Processes or apparatus involving steps for recycling of process streams the recycled stream being boil-off gas from storage
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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
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/42—Modularity, pre-fabrication of modules, assembling and erection, horizontal layout, i.e. plot plan, and vertical arrangement of parts of the cryogenic unit, e.g. of the cold box
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/20—Capture or disposal of greenhouse gases of methane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Definitions
- the present invention relates to a unit and a process for purifying CO2.
- a CO2-rich gas contains at least 35 mol% of carbon dioxide, or even at least 65 mol% of carbon dioxide on a dry basis.
- the gaseous mixture preferably contains at least 2000 ppm of hydrogen. It can also contain at least 2000 ppm of carbon monoxide and / or at least 2000 ppm of methane.
- a CO2 purification unit processes a CO2-rich feed gas, purifies certain undesirable constituents for food application, and liquefies it by vaporizing a refrigerant, usually ammonia.
- This waste gas is generally used as regeneration gas for an adsorption purification system (dryer) located upstream of the final distillation column.
- the regeneration gas enriched in these constituents, enters the flammability range when brought into contact with the air, having served for the regeneration of the system. treatment.
- the waste gas can not be recycled into the feed gas because the recycling does not evacuate the constituents and thus accumulates the flammable constituents.
- this configuration penalizes the net production of the unit, by an amount equal to the flow rate necessary for the regeneration, namely of the order of 5 to 6%.
- US-A-4952223 discloses a separation apparatus upstream of an adsorption unit and downstream of a distillation column to modify the composition of the regeneration gas.
- the feed rate does not contain hydrogen and the regeneration flow rate is not sent to the air and / or is not depleted of hydrogen.
- WO07 / 126972 also discloses a separation apparatus, which is a phase separator, upstream of an adsorption unit and downstream of a distillation column but the composition values given in Table 1 do not correspond to the figure, since the gas phase separator must deplete CO2 while the table shows the opposite. The teaching of this document is therefore not clear.
- a unit for purifying CO2 from a gas rich in CO 2 containing at least 35 mol% of CO2, hydrogen and water and at least one or two of the following impurities: carbon monoxide and methane, comprising:
- At least one purification system capable of operating with an adsorption step at a pressure substantially equal to P and with a regeneration at a pressure below P to purify the gas at the first pressure from the at least one compressor to produce a purified gas at least in water
- a column system comprising at least one distillation column capable of operating at a pressure substantially equal to P of the purified gas to produce a CO2-enriched liquid which is depleted of hydrogen and optionally of carbon monoxide and / or methane, and gas enriched hydrogen and / optionally carbon monoxide and / or methane and depleted in carbon dioxide,
- the unit comprises a first conduit for supplying the hydrogen enriched gas and optionally carbon monoxide and / or methane and carbon dioxide depleted from the column system to the separation apparatus, a second conduit connected to the separation apparatus for returning a gas depleted of hydrogen and optionally carbon monoxide and / or methane, the second pipe being connected to the purification system by the adsorption to send a regeneration gas constituted by at least one part of the hydrogen-depleted gas and possibly carbon monoxide and / or methane alone either at least a part of the gas depleted of hydrogen and optionally carbon monoxide and / or methane mixed with another gas, and the purification system comprising means for sending to air the regeneration gas used for regeneration.
- the separation apparatus is a permeation apparatus.
- composition of the gas depleted of hydrogen and possibly CO generated by the separation apparatus is not included in the flammability range in air.
- the column system is disposed within an insulated enclosure and the separation apparatus is outside any isolated enclosure.
- the unit comprises means for heating the carbon dioxide depleted gas upstream of the separation apparatus.
- the means for heating the gas allow a heat exchange between the gas and ammonia and / or the CO 2 -rich gas at the first pressure.
- the unit comprises means for detecting the content of the gas enriched in hydrogen and optionally carbon monoxide and / or methane and depleted in carbon dioxide sent to the separation apparatus
- the unit comprises a means for detecting the content of the gas depleted of hydrogen and optionally of carbon monoxide detection means previously described is connected to a means for closing the gas line depleted in hydrogen and possibly in carbon monoxide
- distillation in a column system comprising at least one distillation column under pressure substantially equal to P purified gas to produce a liquid enriched in CO2 and depleted of hydrogen and / or carbon monoxide and / or methane and a gas enriched with hydrogen and / or carbon monoxide and / or methane and depleted of carbon dioxide iv) a separation step in a separating apparatus
- the carbon dioxide depleted gas is fed from the column system to the separation apparatus, the separation apparatus produces a gas depleted of hydrogen and optionally carbon monoxide and / or methane, sends the hydrogen-depleted gas and possibly carbon monoxide and / or methane, optionally mixed with another gas, to the adsorption purification system to serve as a regeneration gas, and the regeneration gas used for the regeneration is sent , in the air, at least punctually.
- the hydrogen content of the regeneration gas at the inlet of the purification system being below a threshold corresponding to the flammability range in the air a portion of the regeneration gas used is a flow rate of gaseous carbon dioxide, which can be derived from the liquid produced from the column system.
- the carbon dioxide flow rate is mixed with the hydrogen-depleted gas and optionally carbon monoxide and / or methane produced by the separation apparatus to produce the regeneration gas.
- a threshold for example the limits of flammability in the air
- the gas enriched in hydrogen and possibly carbon monoxide and / or methane and depleted of carbon dioxide sent to the separation apparatus is flammable in the air
- the gas enriched in hydrogen and possibly in carbon monoxide and / or in methane and depleted in carbon dioxide sent to the separation apparatus contains at least 5% of hydrogen, or even at least 10% of hydrogen
- the gas depleted of hydrogen and possibly carbon monoxide and / or methane from the separation apparatus is flammable in the air
- the hydrogen-depleted gas line and possibly carbon monoxide are closed if the hydrogen content of the hydrogen-depleted gas is above a threshold
- the other gas is opened if the hydrogen content of the hydrogen-depleted gas is above a threshold
- a CO2 rich gas 1 containing at least 35% CO2, water, 10 OOOppm H2, 2000 ppm CO and 2000 ppm CH 4 must be separated to produce an enriched liquid carbon dioxide.
- the gas is compressed to 20 bar in a compressor 3 to produce a compressed gas 3.
- the compressed gas 3 is purified to 20 bar in a purification unit 5 which operates by adsorption.
- the water purified gas 6 is cooled (not shown) and sent for distillation in a column system 7 comprising at least one distillation column.
- the system produces a carbon dioxide-enriched, carbon monoxide, hydrogen and methane-depleted liquid containing at least 55% carbon dioxide, which is stored in a 1 1 storage and is sent as a product to a carrier. customer.
- the column system 7 also produces a gas 24 enriched in hydrogen, carbon monoxide and methane and depleted in carbon dioxide.
- the gas 24 contains 15% hydrogen, 3% methane and 3% carbon monoxide.
- the gas 24 contains at least 5% hydrogen, preferably at least 10% hydrogen.
- the purpose of the proposed invention is to minimize the losses associated with flammable compounds in the following manner:
- a separation apparatus 13 separating CO2 from H 2 , CO and methane, for example an HF membrane separates the waste gas 24. Under the effect of the pressure difference between the waste gas 24 (about 20 bar a) and the pressure part of the flammable compounds are permeated and the membrane provides:
- the complement 12 of regeneration gas will be taken from the product storage 1 1.
- the separating apparatus 13 which may be a permeation apparatus, will be able to treat the residual gas 24 at low temperature (at the outlet of the column system): the efficiency is low but the system is easy to implement and minimizes the implantation. transport of flammable gas.
- the separating apparatus 13 and the column system 7 are inside a single insulated enclosure.
- the column system 7 may be disposed within an isolated chamber while the separation apparatus 13 is outside any isolated enclosure.
- the separation apparatus 13 which may be a permeation apparatus, may treat the residual gas 24 at room temperature or higher, after reheating against a refrigerant (NH3, gas 1 or 4, etc.).
- a refrigerant NH3, gas 1 or 4, etc.
- the effectiveness of the permeation is good.
- the gas 20, 16 serves as a regeneration gas for the purification apparatus 5 and is then released to the atmosphere as gas 18.
- the gas 22 is non-flammable. It will be appreciated that the essential is that the gas 16, 20 be non-flammable. It is therefore possible that the gas 22 is flammable and that mixing it with the gas 12 makes it non-flammable.
- the content of hydrogen and optionally carbon monoxide and / or methane is detected, either
- gas enriched in hydrogen and possibly carbon monoxide and / or methane and depleted in carbon dioxide 24 of the column system is either ii) gas depleted of hydrogen and optionally carbon monoxide and / or methane 22 produced by the separation apparatus.
- the gas content (s) 22, 24 or one of these gases exceeds (s) the limits of the flammability in the air, in some cases, the gas depleted in hydrogen and possibly in monoxide is not used. of carbon and / or methane produced by the separation apparatus as a regeneration gas.
- the gas 12 not mixed with the gas 22 can be used as a regeneration gas 16.
- gaseous carbon dioxide is mixed. 12 with the gas depleted of hydrogen and / or carbon monoxide and / or methane 22 produced by the separation apparatus 13 to serve as a regeneration gas 16.
- Carbon dioxide in both cases, does not necessarily come from the storage 1 1 but can come from an external source. Similarly another gas can replace the gas 16.
- the unit may comprise at least one means for detecting the content or contents of the gases 22 and / or 24 connected to a means for closing the gas line 22 and / or a means for opening the gas line 12.
- Gas 6 feed gas after drying in the purification system contains: 98.5% CO 2, 1% (10,000 ppm) methane, 0.2% (2000 ppm) H2, 0.2% (2000 ppm) CO, and 0.1% inert (N2 + 02)
- Gas 24 contains 78% CO2, 15% H2, 3% CO, 3% CH4, and 1% inert (N2 + O2)
- the gas 22 contains 93% CO 3, 5% H2 and 1.5% CH 4
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Gas Separation By Absorption (AREA)
- Separation Of Gases By Adsorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1360870A FR3012751B1 (fr) | 2013-11-06 | 2013-11-06 | Unite et procede de purification de co2 |
PCT/FR2014/052842 WO2015067902A1 (fr) | 2013-11-06 | 2014-11-06 | Unite et procede de purification de c02 par adsorption |
Publications (1)
Publication Number | Publication Date |
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EP3065847A1 true EP3065847A1 (fr) | 2016-09-14 |
Family
ID=49817082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP14806024.7A Withdrawn EP3065847A1 (fr) | 2013-11-06 | 2014-11-06 | Unite et procede de purification de c02 par adsorption |
Country Status (5)
Country | Link |
---|---|
US (1) | US20160265840A1 (fr) |
EP (1) | EP3065847A1 (fr) |
CN (1) | CN105705217A (fr) |
FR (1) | FR3012751B1 (fr) |
WO (1) | WO2015067902A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108261882A (zh) * | 2016-12-30 | 2018-07-10 | 黄肖辉 | 一种空气净化剂 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN117446803B (zh) * | 2023-12-26 | 2024-04-26 | 大连华邦化学有限公司 | 二氧化碳纯化系统及纯化方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4952223A (en) * | 1989-08-21 | 1990-08-28 | The Boc Group, Inc. | Method and apparatus of producing carbon dioxide in high yields from low concentration carbon dioxide feeds |
US7666251B2 (en) * | 2006-04-03 | 2010-02-23 | Praxair Technology, Inc. | Carbon dioxide purification method |
KR20090069192A (ko) * | 2006-10-17 | 2009-06-29 | 캐논 가부시끼가이샤 | 배출연료의 희석기구 및 배출연료의 희석기구를 가진 연료전지시스템 |
US8012446B1 (en) * | 2010-07-08 | 2011-09-06 | Air Products And Chemicals, Inc. | Recycle TSA regen gas to boiler for oxyfuel operations |
US20120291482A1 (en) * | 2011-05-18 | 2012-11-22 | Air Liquide Large Industries U.S. Lp | Process For Recovering Hydrogen And Carbon Dioxide |
CN202185250U (zh) * | 2011-07-21 | 2012-04-11 | 上海启元空分技术发展股份有限公司 | 一种空分设备纯化系统 |
-
2013
- 2013-11-06 FR FR1360870A patent/FR3012751B1/fr active Active
-
2014
- 2014-11-06 EP EP14806024.7A patent/EP3065847A1/fr not_active Withdrawn
- 2014-11-06 US US15/034,110 patent/US20160265840A1/en not_active Abandoned
- 2014-11-06 WO PCT/FR2014/052842 patent/WO2015067902A1/fr active Application Filing
- 2014-11-06 CN CN201480060593.9A patent/CN105705217A/zh active Pending
Non-Patent Citations (2)
Title |
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None * |
See also references of WO2015067902A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108261882A (zh) * | 2016-12-30 | 2018-07-10 | 黄肖辉 | 一种空气净化剂 |
Also Published As
Publication number | Publication date |
---|---|
WO2015067902A1 (fr) | 2015-05-14 |
US20160265840A1 (en) | 2016-09-15 |
FR3012751B1 (fr) | 2017-05-05 |
CN105705217A (zh) | 2016-06-22 |
FR3012751A1 (fr) | 2015-05-08 |
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