EP3846922A1 - Procédé et installation d'épuration d'un gaz brut par un solvant liquide - Google Patents
Procédé et installation d'épuration d'un gaz brut par un solvant liquideInfo
- Publication number
- EP3846922A1 EP3846922A1 EP19762157.6A EP19762157A EP3846922A1 EP 3846922 A1 EP3846922 A1 EP 3846922A1 EP 19762157 A EP19762157 A EP 19762157A EP 3846922 A1 EP3846922 A1 EP 3846922A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- solvent
- purifier
- pressure
- column
- 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- Withdrawn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
-
- 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
- B01D53/14—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 absorption
- B01D53/1406—Multiple stage absorption
-
- 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
- B01D53/14—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 absorption
- B01D53/1418—Recovery of products
-
- 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
- B01D53/14—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 absorption
- B01D53/1425—Regeneration of liquid absorbents
-
- 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
- B01D53/14—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 absorption
- B01D53/1456—Removing acid components
- B01D53/1475—Removing carbon dioxide
-
- 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
- B01D53/14—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 absorption
- B01D53/1487—Removing organic compounds
-
- 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
- B01D53/14—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 absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/102—Removal of contaminants of acid contaminants
- C10L3/104—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
- B01D2252/103—Water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/20—Organic absorbents
- B01D2252/205—Other organic compounds not covered by B01D2252/00 - B01D2252/20494
-
- 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
- B01D2256/24—Hydrocarbons
- B01D2256/245—Methane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/102—Nitrogen
-
- 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 the purification of a raw gas, mainly composed of useful compounds such as methane and undesirable compounds such as carbon dioxide, and condensable compounds such as water vapor, with a view mainly to extracting raw gas the useful compound on the one hand and the undesirable compounds on the other hand.
- the concentration of less soluble gas, the first gas increases by the disappearance in gaseous form of the soluble element.
- a purified gas is thus recovered, largely freed from the second gas.
- the solubility of the second gas decreases and the latter is released from the solvent in gaseous form. The solvent can then be reused in a loop and the second gas recycled, reused or eliminated.
- the compressed gas is introduced into the scrubber at the bottom of the column. It is guaranteed that the gas circulates in the purifier against the current of the solvent.
- the recycling stage involves putting under pressure of the solvent by a first pump operating at a third predefined constant pressure, the compression step effecting a mixture of the raw gas and the solvent in an ejector in which the solvent from the first pump is used as a working fluid so as to suck up the raw gas and compress it.
- the ejector is a static device in which the liquid is propelled into a nozzle which opens into a duct along the axis of the duct. The liquid entrains the gas which arrives through the conduit around the nozzle and mixes with it, forming a two-phase mixture, that is to say a mist. It is this mist which is introduced into the purifier.
- the flow of solvent is directed towards the purifier by an expansion valve slaved to maintaining the pressure upstream of the raw gas.
- the action on the expansion valve determines the part of the solvent which goes on the one hand towards the purifier, and on the other hand towards the mixing stage.
- the operation of the process is adapted to the quantity of raw gas arriving, maintaining its pressure level. If this level increases, the pressure level regulated by the expansion valve is increased, which increases the flow of solvent to the mixing stage and the quantity of raw gas admitted.
- the second pressure in the regulator is supplied by a depressant which extracts the polluting gas. It is thus possible to reach a second very low pressure, so as to optimize the efficiency of the regeneration, namely the extraction of the dissolved gas.
- the solvent is cooled in an exchanger.
- the first gas is methane
- the second gas is carbon dioxide
- the solvent is water.
- the raw gas is for example biogas from a methanizer. This biogas contains mainly methane, but also carbon dioxide, which is much more soluble in water than methane. It is thus possible to eliminate carbon dioxide and obtain a high concentration of methane so as to value it in an attractive manner. Carbon dioxide can also be used in gaseous or liquefied form.
- the first gas is an inerting gas
- the raw gas further comprising a plurality of light hydrocarbons as the second gas, the solvent being a mixture of heavier hydrocarbons than light hydrocarbons.
- the subject of the invention is also a double-stage purification process in which the process as described above is applied in a first stage, and in a second stage as previously described with the compound from the regenerator of the first as crude gas stage, a polluting gas enriched in the first gas coming from the purifier of the second stage being recycled in the purifier of the first stage. It is thus possible to recover part of the less soluble gas which would however have dissolved and would have passed into the polluting gas.
- the invention also relates to an installation for purifying a raw gas in the form of a gaseous compound comprising at least a first and a second gas, characterized in that it comprises: means for compressing the raw gas for perform a compression step in which the raw gas is pressurized; a material transfer column forming a scrubber, to receive the raw gas under pressure, the purifier comprising an expansion valve at the head of the column provided for maintaining the purifier under a first pressure and for extracting a purified gas essentially comprising the first gas, means for circulating a liquid solvent in the 'purifier against the flow of raw gas so that the second gas dissolves in the solvent;
- regenerator-forming material transfer column receiving the solvent withdrawn from the scrubber
- a depressant extracting the gas forming a polluting gas at the top of the regenerator column, and maintaining the regenerator under a second pressure lower than the first pressure so that the second gas dissolved in the solvent volatilizes in the regenerator;
- a first pump to supply the solvent from the regenerator to the scrubber at the head of the column
- Figure 1 is a flow diagram of fluids illustrating the method according to a first embodiment.
- FIG. 2 presents a diagram of the circulation of fluids illustrating the treatment of polluting gases according to a third embodiment.
- the process, object of the present invention, and as illustrated by FIG. 1, is a process for purifying gas with a solvent in four stages: in the first so-called mixing or suction-compression step, the raw gas is introduced into an ejector 1 to be sucked in, then compressed with the cold solvent as the working fluid necessary for the second step; in the second so-called purification step, the two-phase mixture from the ejector 1 is introduced into a purifier 2, which is a material transfer column, at the bottom of the column and from which the gas escapes at the head of the column purified by the expansion valve PCV2 provided to maintain the purifier 1 at a first pressure, with, as purifying liquid, the same solvent used in the ejector 1 and circulating in the purifier 2 against the flow of the raw gas;
- a purifier 2 which is a material transfer column, at the bottom of the column and from which the gas escapes at the head of the column purified by the expansion valve PCV2 provided to maintain the purifier 1 at a first pressure, with, as
- the solvent loaded with polluted gases is expanded under partial vacuum through the LCV1 level control valve, in a regenerator 3 which is a material transfer column from which escape at the top , polluting gases, drawn by a depressor 4 and which is equipped with a level control allowing the evacuation of any condensates by the level control valve LCV2;
- the solvent from the regenerator 3 is pumped by a first pump 5 at a third predefined constant pressure, then cooled to a fixed temperature by a solvent cooler 6 associated with a cold group 7 and the control valve temperature TCV1, before being recycled to the raw gas ejector 1 and the raw gas purifier 2, with a distribution of the flows by the pressure control valve PCV1, throttling the flow sent to the purifier 2 for maintain a constant pressure at the suction of the ejector 1.
- the gas to be treated is a bio gas resulting from the anaerobic fermentation of animal or vegetable waste and mainly comprises as the first gas of the methane (around 55%), and as the second gas carbon dioxide (around 38%, denoted C02 below), as well as water vapor (around 7%).
- This biogas called here raw gas comes from a fermenter, not shown, at a slightly higher pressure at atmospheric pressure and around 40 ° C.
- the two-phase mixture at the outlet of the ejector 1 is introduced at the base of the raw gas purifier 2 which is a material exchange column traversed from bottom to top by the raw gas and sprayed at the top with the same cold water than that introduced into the ejector 1 and migrating down the column.
- the gas not dissolved in the water called purified gas leaves the upper part of the purifier 2 and comprises approximately 97% of methane, 0.8% of water vapor and 2.2% of CO2.
- the pressure control valve PCV2 maintains the purifier 2 under pressure and the level control valve LCV1 evacuates the water charged with C02 and in condensed water called polluted solvent towards a regenerator 3 of solvent.
- the solvent regenerator 3 is also a material transfer column operating under partial vacuum (approximately 0.3 bar absolute).
- the vacuum is maintained by a depressor 4 slaved to maintaining the pressure in the solvent re-generator 3 at a second pressure; this depressant 4 may for example be a vacuum pump. Water at this pressure loses almost all of the dissolved C02 and can be recycled for a new use.
- the gas drawn by the depressant 4, known as polluting gas comprises approximately 93% of CO 2, 0.5% of water vapor but also 6.5% of methane.
- the solvent regenerator 3 is equipped with a level control allowing the evacuation of any condensates by the LCV2 level control valve.
- the solvent from the regenerator 3 is pumped at the third predefined constant pressure (approximately 8 bar absolute), then cooled to a fixed temperature (around 4 ° C) by the solvent cooler 6 associated with a cold group 7 and the control valve temperature TCV1, before being recycled to the raw gas ejector 1 and the raw gas purifier 2, with a distribution of the flows by the pressure control valve PCV1, throttling the flow sent to the purifier 2 to maintain a constant pressure at the suction of the ejector 1 (approximately 5mbar).
- the polluting gas is treated on the same principle as before to purify the polluting gas and approach a composition close to that raw gas.
- the polluting gas is sucked in directly by a second ejector 1 ’instead of the depressor, supplied with solvent from a second circuit.
- the two-phase mixture from the second ejector 1 ′ is produced in a second purifier 2 ′ at the bottom of the column and from which the enriched polluting gas escapes at the head of the column through the expansion valve PCV3 to maintain the second purifier 2 'under pressure, with, as purifying liquid, the same solvent used in the second ejector 1' and circulating in the second purifier 2 'against the flow of the polluting gas;
- the solvent loaded with polluted gases is expanded under partial vacuum through the LCV3 level control valve, in a second regenerator 3 'from which the purified pollutant gases escape, led by a 4' depressor and which is equipped with a level control allowing the evacuation of any condensates by the LCV4 level control valve; in the recycling step, the solvent from the regenerator 3 'is pumped at a constant pressure predefined by a second pump 5', then cooled to a fixed temperature by a second cooler 6 'of solvent associated with the cold group 7 and the temperature control
- the first and second embodiments of the invention are mainly intended for the industry for the treatment of agricultural, agrifood, water treatment or household waste, which wishes to recover the fermentation biogas for reinjection in a distribution network of natural gas and carbon dioxide to use it in the gaseous state or to liquefy it.
- the method is implemented on an installation also illustrated in FIG. 1.
- the gas to be treated comes from a storage tank for a so-called light hydrocarbon or a mixture thereof (as for example pentane, hexane or toluene).
- These highly volatile and highly flammable products are stored with an "inerting blanket" in the gaseous atmosphere of the storage tank, for example with nitrogen.
- Raw gas comes from the tank at a pressure slightly higher than atmospheric pressure and at room temperature.
- Raw gas is in our process composed of a first gas, nitrogen, and at least a second gas, a light hydrocarbon.
- the raw gas is sucked and compressed to a pressure close to 6 bar absolute by the ejector 1, the working fluid of which is a hydrocarbon heavier than the vapors of hydrocardures, such as kerosene, and called solvent. It is used in the rest of the process to dissolve most of the light hydrocarbon (s).
- the two-phase mixture at the outlet of ejector 1 is introduced at the base of the raw gas purifier 2 crossed from bottom to top by the raw gas and sprayed at the top with the same solvent introduced into the ejector 1 and migrating towards the bottom of the column.
- the gas not dissolved in water, said purified gas contains approximately 99% nitrogen, 1% light hydrocarbon.
- the PCV2 pressure control valve maintains the column at the first pressure and the LCV1 level control valve discharges the solvent loaded with light hydrocarbon called polluted solvent to the solvent regenerator 3.
- the solvent regenerator 3 operates under partial vacuum (approximately 0.3 bar absolute).
- the vacuum is maintained by a depressor 4 controlled by the maintenance of the second pressure in the regenerator 3 of solvent.
- the solvent at this pressure loses almost all of the dissolved light hydrocarbon (s) and may be recycled for new use.
- the gas drawn by the depressant 4, known as polluting gas contains approximately 99% of light hydrocarbons, and 1% of solvent.
- the polluting gas can be recycled in the tank or destroyed by incineration or filtered by activated carbon.
- the regenerator 3 of solvent is equipped with a level control allowing a top-up of solvent or the evacuation of surplus of solvent by the level control valve LCV2.
- the solvent from the regenerator 3 is pumped at the third predefined constant pressure (approximately 8 bar absolute), then cooled to a fixed temperature (approximately 4 ° C.) by the solvent cooler 6, before being recycled to the ejector 1 of raw gas and the raw gas purifier 2, with a distribution of the flows by the pressure control valve PCV1, throttling the flow sent to the purifier 2 to maintain a constant pressure at the suction of the ejector 1 (5mbar about).
- the present invention is mainly intended for any industry using light hydrocarbons in its transformation processes, such as industrial printing plants, industrial painting companies or the pharmaceutical industry.
- this process can be supplemented by a second treatment of the polluting gases, on the same principle as explained above for recycling in the raw gas purifier 2 the components of the raw gas weakly dissolved in the solvent but keep in purified gas.
- the invention is not limited to the embodiments which have just been described by way of example.
- the first step can be carried out by a presser or fan.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Gas Separation By Absorption (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1857930A FR3085281B1 (fr) | 2018-09-04 | 2018-09-04 | Procede et installation d'epuration d'un gaz brut par un solvant liquide |
PCT/EP2019/073496 WO2020049006A1 (fr) | 2018-09-04 | 2019-09-03 | Procédé et installation d'épuration d'un gaz brut par un solvant liquide |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3846922A1 true EP3846922A1 (fr) | 2021-07-14 |
Family
ID=66640993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19762157.6A Withdrawn EP3846922A1 (fr) | 2018-09-04 | 2019-09-03 | Procédé et installation d'épuration d'un gaz brut par un solvant liquide |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3846922A1 (fr) |
FR (1) | FR3085281B1 (fr) |
WO (1) | WO2020049006A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT202100011162A1 (it) * | 2021-05-03 | 2022-11-03 | Milano Politecnico | Processo e apparato per il recupero della CO2 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2886405A (en) * | 1956-02-24 | 1959-05-12 | Benson Homer Edwin | Method for separating co2 and h2s from gas mixtures |
FR2646166B1 (fr) * | 1989-04-25 | 1991-08-16 | Technip Cie | Procede de recuperation d'hydrocarbures liquides dans une charge gazeuse et installation pour l'execution de ce procede |
FR2944218B1 (fr) * | 2009-04-09 | 2012-06-15 | Total Sa | Dipositif ejecteur pour former un melange sous pression de liquide et de gaz, et compresseur de gaz comprenant un tel dispositif ejecteur |
BE1021343B1 (nl) * | 2012-10-05 | 2015-11-05 | Atlas Copco Airpower, Naamloze Vennootschap | Werkwijze voor het onttrekken van een gas uit een gasmengsel en inrichting daarbij toegepast. |
EP3443052A1 (fr) * | 2016-04-15 | 2019-02-20 | SABIC Global Technologies B.V. | Séparation de gaz d'échappement d'hydrocarbures c3 dans un procédé de déshydrogénation de propane |
-
2018
- 2018-09-04 FR FR1857930A patent/FR3085281B1/fr active Active
-
2019
- 2019-09-03 WO PCT/EP2019/073496 patent/WO2020049006A1/fr unknown
- 2019-09-03 EP EP19762157.6A patent/EP3846922A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2020049006A1 (fr) | 2020-03-12 |
FR3085281B1 (fr) | 2023-01-20 |
FR3085281A1 (fr) | 2020-03-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU2721698C2 (ru) | Способ получения биометана путем очистки биогаза из хранилищ неопасных отходов и установка для осуществления способа | |
EP2445614B1 (fr) | Procede de traitement de gaz acides | |
EP1869385B1 (fr) | Procede et installation integres d'adsorption et de separation cryogenique pour la production de co2 | |
FR3075659B1 (fr) | Procede de production d'un courant de gaz naturel a partir d'un courant de biogaz. | |
CA3024382C (fr) | Procede de separation cryogenique d'un debit d'alimentation contenant du methane et des gaz de l'air, installation pour la production de bio methane par epuration de biogaz issus d'installations de stockage de dechets non-dangereux (isdnd) mettant en oeuvre le procede | |
EP0691155B1 (fr) | Procédé de désacidification d'un gaz pour production de gaz acides concentrés | |
EP2918327B1 (fr) | Procédé d' épuration d' effluents gazeux par élimination sélective des polluants qu' ils contiennent | |
FR2465698A1 (fr) | Procede de recuperation d'hydrocarbures d'un melange d'hydrocarbures et de gaz porteur et, en particulier, de recuperation du methane dans les mines de charbon, avec eventuellement decontamination de l'air ambiant | |
EP0770667A1 (fr) | Procédé de séchage de gaz au glycol incluant la purification des rejets gazeux | |
EP2411118B1 (fr) | Procede et installation de traitement d'un gaz naturel de charge pour obtenir un gaz naturel traite et une coupe d'hydrocarbures en c5+ | |
EP3846922A1 (fr) | Procédé et installation d'épuration d'un gaz brut par un solvant liquide | |
FR3075660B1 (fr) | Procede de distillation d'un courant gazeux contenant de l'oxygene | |
EP0719729B1 (fr) | Procédé et installation de traitement d'un mélange gazeux comprenant de l'ozone | |
FR2793701A1 (fr) | Procede de production d'oxygene gazeux | |
RU2381823C1 (ru) | Способ очистки газа от кислых компонентов и установка для его осуществления | |
WO2021228616A1 (fr) | Installation et procede de production de biomethane avec perte de methane limitee et emission de co2 limitee | |
FR2823449A1 (fr) | Procede d'elimination d'oxygene d'un gaz contenant du gaz carbonique | |
WO2014114862A2 (fr) | Solution absorbante a base d'une amine tertiaire ou encombree et d'un activateur particulier et procédé d'elimination de composes acides d'un effluent gazeux | |
EP4105296B1 (fr) | Procédé de traitement d'un flux gazeux issu de la pyrolyse de plastique et/ou de la pyrolyse de biomasse, et installation visant à l intégration dans un vapocraqueur | |
EP4072996A1 (fr) | Procédé et un dispositif de purification de gaz | |
FR3016535A1 (fr) | Procede integre thermiquement d'elimination du dioxyde de carbone dans du biogaz | |
FR2938448A1 (fr) | Dispositif et procede pour le traitement et la compression des gaz | |
WO2019122662A1 (fr) | Procédé de limitation de la concentration d'oxygène contenu dans un courant de biométhane | |
FR3109097A3 (fr) | Installation et un procédé pour la production de biogaz enrichi en méthane |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20210331 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20220819 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20221101 |