EP3681617A1 - Procede de production de biomethane mettant en oeuvre un systeme d'absorption et une pompe a chaleur - Google Patents
Procede de production de biomethane mettant en oeuvre un systeme d'absorption et une pompe a chaleurInfo
- Publication number
- EP3681617A1 EP3681617A1 EP18782108.7A EP18782108A EP3681617A1 EP 3681617 A1 EP3681617 A1 EP 3681617A1 EP 18782108 A EP18782108 A EP 18782108A EP 3681617 A1 EP3681617 A1 EP 3681617A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- absorbent solution
- refrigerant
- desorber
- biogas
- absorber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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
- B01D53/1456—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
- B01D53/1425—Regeneration of liquid 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- 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
- B01D2252/20—Organic absorbents
- B01D2252/204—Amines
- B01D2252/20436—Cyclic amines
- B01D2252/20447—Cyclic amines containing a piperazine-ring
-
- 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
- B01D2252/204—Amines
- B01D2252/20478—Alkanolamines
- B01D2252/20484—Alkanolamines with one hydroxyl group
-
- 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
- B01D2252/204—Amines
- B01D2252/20478—Alkanolamines
- B01D2252/20489—Alkanolamines with two or more hydroxyl groups
-
- 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
- B01D2257/30—Sulfur compounds
- B01D2257/304—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/05—Biogas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/65—Employing advanced heat integration, e.g. Pinch technology
-
- 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/54—Specific separation steps for separating fractions, components or impurities during preparation or upgrading of a fuel
- C10L2290/541—Absorption of impurities during preparation or upgrading of a fuel
-
- 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 process for producing biomethane from biogas using an amine wash absorption system and a heat pump system.
- Biogas is the gas produced during the degradation of organic matter in the absence of oxygen (anaerobic fermentation), also known as anaerobic digestion. This may be a natural degradation - this is observed in marshes or garbage dumps - but the production of biogas can also result from the methanisation of waste in a dedicated reactor, called a methanizer or digester.
- the biogas contains mainly methane (CH4) and carbon dioxide (CO2) in varying proportions depending on the method of production but also, in lesser proportions, water, nitrogen, hydrogen sulfide, oxygen, as well as other organic compounds, in trace amounts.
- CH4 methane
- CO2 carbon dioxide
- the biogas comprises, on dry gas, 30 to 75% of methane, 15 to 60% of CO2, 0 to 15% of carbon dioxide. nitrogen, 0-5% oxygen and trace compounds.
- Biogas is valued in different ways. It may, after a light treatment, be upgraded near the production site to provide heat, electricity or a mixture of both (cogeneration); the high content of carbon dioxide reduces its calorific value, increases the compression and transport costs and limits the economic interest of its valuation to this use of proximity.
- Biomethane thus completes natural gas resources with a renewable portion produced in the heart of the territories; it is usable for exactly the same uses as natural gas of fossil origin. It can feed a natural gas network, a filling station for vehicles, it can also be liquefied to be stored in the form of liquid natural gas (LNG) ...
- LNG liquid natural gas
- the modes of valorization of the biomethane are determined according to the local contexts: local energy needs, possibilities of valorization as biomethane fuel, existence close to networks of distribution or transport of natural gas in particular. Creating synergies between the different actors working on a territory (farmers, industrialists, public authorities), the production of biomethane helps the territories to acquire a greater energy autonomy.
- a first step is to compress the biogas that has been produced and transported at atmospheric pressure, this compression can be obtained - conventionally - via a lubricated screw compressor.
- the next steps are to rid the biogas of corrosive components such as hydrogen sulphide and volatile organic compounds (VOCs), the technologies used are conventionally pressure swing adsorption (PSA) and activated carbon capture. Then comes the step of separating the carbon dioxide to finally dispose of methane at the purity required for its subsequent use.
- VOCs volatile organic compounds
- a solution of the present invention is a process for producing biomethane 1 from biogas 2 using an absorption system, including an absorber 3, a desorber 4, and an absorbent solution 5 and a heat pump system including a refrigerant 6 according to a thermodynamic cycle, comprising the following successive steps: a) cooling the absorbent solution 5 to a temperature below 45 ° C by contact with the refrigerant 6 at the low pressure of its thermodynamic cycle which vaporizes,
- step d) compressing the refrigerant 6 at the high pressure of its thermodynamic cycle, e) heating the CO2-enriched absorbent solution recovered in step c) to a temperature above 50 ° C. by contact with the refrigerant 6 from step d) which condenses,
- the process according to the invention is an absorption process (using an amine or a mixture of amines or amino polymers which may include heat-sensitive copolymers) coupled to a heat pump.
- This makes it possible to thermally bond the desorber and the adsorber.
- the thermodynamic cycle followed by the refrigerant makes it possible to transfer the heat of the absorber to the desorber, and thus greatly reduce the energy consumption of the process.
- the refrigerant undergoes 4 transformations:
- An amine solution is an alkaline solution that attracts and absorbs CO2.
- the absorbent solution (weak base) and the CO 2 (weak acid). This chemical reaction must be done at low temperature. For this reason the absorbent solution is cooled by the refrigerant. When it comes into contact with the refrigerant, the refrigerant captures the calories of the absorbent solution; the absorbent solution is thus cooled. This reaction takes place in the absorber.
- the gas leaving the column head contains less than 0.5% CO2. But these concentrations depend mainly on the type of absorbent solution used.
- the absorbent that exits at the bottom of the column has absorbed CO2.
- the C02 enriched absorbent must be regenerated in order to be used again.
- Regeneration consists of desorbing the adsorbed CO 2. The operation is done in a column called "desorber". Desorption requires heat input. This heat input is provided by the transition from the gaseous state to the liquid state of the refrigerant. During the desorption phase, part of the water of the absorbent aqueous solution can evaporate into the CO 2 stream. A make-up of water is necessary to compensate for this loss.
- the heat supply can be done either upstream of the desorber (diagram 1) or in the tank 11 of the desorber (reboiler, diagram 2).
- the method according to the invention may have one or more of the following characteristics:
- step g) at the top of the desorber, a stream of CO 2 8 is recovered;
- step c) at the bottom of the adsorber, an absorbent solution enriched in CO 2 and H 2 S 12 is recovered;
- step e) during the heating of the absorbent solution, part of the water contained in the absorbent solution evaporates and this loss of water is compensated by a makeup of water;
- step e) of heating the absorbent solution is carried out upstream of the desorber or in the desorber 11;
- the biogas comprises hydrogen sulphide and said process comprises, before step a), a step of removing the hydrogen sulphide included in the biogas.
- the refrigerant is isobutane
- step h) the expansion of the refrigerant is carried out by means of a valve 9;
- the absorbent solution is based on amine, a mixture of amines, of amine polymers
- the amine solution is chosen from ethanolamine (MEA), N-methyl diethanolamine (MDEA), activated methyl diethanolamine (aMDEA), diethanolamine (DEA), piperazine
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 |
|---|---|---|---|
| FR1758512A FR3070873B1 (fr) | 2017-09-14 | 2017-09-14 | Procede de production de biomethane mettant en œuvre un systeme d'absorption et une pompe a chaleur |
| PCT/FR2018/052220 WO2019053367A1 (fr) | 2017-09-14 | 2018-09-12 | Procede de production de biomethane mettant en œuvre un systeme d'absorption et une pompe a chaleur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3681617A1 true EP3681617A1 (fr) | 2020-07-22 |
Family
ID=60765795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18782108.7A Pending EP3681617A1 (fr) | 2017-09-14 | 2018-09-12 | Procede de production de biomethane mettant en oeuvre un systeme d'absorption et une pompe a chaleur |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3681617A1 (fr) |
| CN (1) | CN111050880A (fr) |
| FR (1) | FR3070873B1 (fr) |
| WO (1) | WO2019053367A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3099710B1 (fr) | 2019-08-08 | 2021-08-06 | Ifp Energies Now | Procédé de traitement de gaz par absorption utilisant une régénération du solvant par flash chaud optimisée thermiquement |
| CN114367187B (zh) * | 2022-01-25 | 2025-09-16 | 中国科学院理化技术研究所 | 二氧化碳捕集系统 |
| GB2625298A (en) * | 2022-12-13 | 2024-06-19 | Rolls Royce Plc | Improvements to energy performance in CO² capture |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112006002198T9 (de) * | 2005-08-16 | 2009-02-26 | CO2CRC Technologies Pty. Ltd., Parkville | Anlage und Verfahren zum Entfernen von Kohlendioxid aus Gasströmen |
| DE102006044193B4 (de) * | 2006-09-20 | 2011-02-24 | Dge Dr.-Ing. Günther Engineering Gmbh | Verfahren zur Reinigung von Biogas von Schwefelwasserstoff |
| DE102009056661A1 (de) * | 2009-12-02 | 2011-06-09 | Mt-Biomethan Gmbh | Waschlösung und Verfahren zur Abtrennung von Kohlendioxid aus Bio- oder Klärgas |
| JP5665022B2 (ja) * | 2010-03-31 | 2015-02-04 | 新日鉄住金エンジニアリング株式会社 | 二酸化炭素ガス回収装置 |
| FR2968574B1 (fr) * | 2010-12-14 | 2013-03-29 | IFP Energies Nouvelles | Schema de captage du dioxyde de carbone incluant un ou plusieurs circuits de pompe a chaleur |
| WO2015107416A2 (fr) * | 2014-01-16 | 2015-07-23 | Universita Degli Studi Di Milano-Bicocca | Nouveaux composés pour la capture de dioxyde de carbone de mélanges gazeux et pour la libération subséquente, procédé et installation associés |
-
2017
- 2017-09-14 FR FR1758512A patent/FR3070873B1/fr active Active
-
2018
- 2018-09-12 CN CN201880058883.8A patent/CN111050880A/zh active Pending
- 2018-09-12 WO PCT/FR2018/052220 patent/WO2019053367A1/fr not_active Ceased
- 2018-09-12 EP EP18782108.7A patent/EP3681617A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3070873B1 (fr) | 2019-09-20 |
| CN111050880A (zh) | 2020-04-21 |
| FR3070873A1 (fr) | 2019-03-15 |
| WO2019053367A1 (fr) | 2019-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105749699B (zh) | 一种全温程变压吸附气体分离提纯与净化的方法 | |
| 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 | |
| FR3075659B1 (fr) | Procede de production d'un courant de gaz naturel a partir d'un courant de biogaz. | |
| FR3046086A1 (fr) | Procede de production de biomethane par epuration de biogaz issu d'installations de stockage de dechets non-dangereux (isdnd) et installation pour la mise en œuvre du procede | |
| FR2808223A1 (fr) | Procede de purification d'un effluent contenant du gaz carbonique et des hydrocarbures par combustion | |
| CN110938480A (zh) | 包含杂质凝固的由生物气料流生产生物甲烷的方法 | |
| AU2014275677B2 (en) | Carbon dioxide separation device having improved sensible heat recovery efficiency using pressure reduction and phase separation | |
| CA2969420A1 (fr) | Procede de separation d'un produit gazeux present dans un melange gazeux | |
| JP2012504538A (ja) | 脱硫方法 | |
| FR3070873B1 (fr) | Procede de production de biomethane mettant en œuvre un systeme d'absorption et une pompe a chaleur | |
| CN102086417A (zh) | 一种沼气净化及回收单质硫和二氧化碳的工艺方法 | |
| EP3719426A1 (fr) | Purification et liquéfaction du biogaz par combinaison d'un système de cristallisation avec un échangeur de liquéfaction | |
| EP4062998A1 (fr) | Installation et procédé permettant d obtenir du biométhane conforme aux spécificités d'un réseau de transport | |
| EP4149654B1 (fr) | Installation et procédé de production de biométhane avec perte de méthane limitée et emission de co2 limitée | |
| FR3050656A1 (fr) | Procede de production de biomethane liquide par separation cryogenique | |
| CN116573611B (zh) | 一种发电、碳捕获与惰性组分回收耦合的装置及使用方法 | |
| CN205603542U (zh) | 利用烟道气制液化天然气的系统 | |
| FR2907025A1 (fr) | Procede de capture du co2 avec integration thermique du regenerateur. | |
| FR2884304A1 (fr) | Procede integre d'absorption et de separation cryogenique pour la production de co2 et installation pour la mise en oeuvre du procede | |
| EP4101911B1 (fr) | Purification cryogénique de biogaz avec pré-séparation et solidification externe de dioxyde de carbone | |
| FR2997866A3 (fr) | Capture de co2 par unite cryogenique sur une centrale de type gazeification integree a cycle combine | |
| WO2026013157A2 (fr) | Procédé de purification de dioxyde de carbone liquéfié à partir de gaz liquéfié collecté | |
| FR3157218A3 (fr) | Appareil et procédé de traitement par perméation membranaire d’un flux gazeux, et Installation comprenant un tel appareil | |
| FR3109097A3 (fr) | Installation et un procédé pour la production de biogaz enrichi en méthane | |
| CRUCERU et al. | CO 2 CAPTURE TECHNOLOGIES. A LITERATUARE SURVEY. |
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: 20200414 |
|
| 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 |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| 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: 20220822 |
|
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE |