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EP2399074A2 - Procede et dispositif d'epuration d'un flux gazeux contenant du dioxyde de carbone - Google Patents

Procede et dispositif d'epuration d'un flux gazeux contenant du dioxyde de carbone

Info

Publication number
EP2399074A2
EP2399074A2 EP10704757A EP10704757A EP2399074A2 EP 2399074 A2 EP2399074 A2 EP 2399074A2 EP 10704757 A EP10704757 A EP 10704757A EP 10704757 A EP10704757 A EP 10704757A EP 2399074 A2 EP2399074 A2 EP 2399074A2
Authority
EP
European Patent Office
Prior art keywords
absorption column
gas stream
carbon dioxide
column
absorption
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Withdrawn
Application number
EP10704757A
Other languages
German (de)
English (en)
Inventor
Dieter Mihailowitsch
Torsten Stoffregen
Martin Weiss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linde GmbH
Original Assignee
Linde KCA Dresden GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linde KCA Dresden GmbH filed Critical Linde KCA Dresden GmbH
Publication of EP2399074A2 publication Critical patent/EP2399074A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/006—Layout of treatment plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/50—Carbon dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/40—Sorption with wet devices, e.g. scrubbers
    • 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
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/32—Direct CO2 mitigation

Definitions

  • the invention relates to a process for purifying a carbon dioxide-containing gas stream, wherein the gas stream is first subjected to a prewash in a lower section of an absorption column for conditioning the gas stream and then in an upper section of the absorption column the carbon dioxide is at least partially washed out with a washing liquid from the gas stream, and a device for carrying out the method.
  • power plants ie industrial installations for providing in particular electrical and partly additional thermal power
  • primary energy is used, which is made available after appropriate conversion as useful energy.
  • gas streams are generated which can not be released to the environment without further purification steps.
  • fossil fuels e.g. Coal, petroleum or natural gas, burned
  • flue gases e.g. CO2
  • waste gas streams containing environmentally harmful components.
  • pollutant component is increasingly considered CO2, which is classified as a harmful gas.
  • CCS Carbon, Capture and Sequestration
  • Carbon dioxide-containing gas streams also accrue to other pyrolysis plants operated with fossil fuels. These include, for example, industrial furnaces, Steam boilers and similar large-scale thermal plants for generating electricity or heat.
  • amine-based detergents can be used.
  • the flue gas stream In order to make the washing process as efficient as possible, the flue gas stream must be conditioned accordingly before entering the actual washing section. For this purpose, the flue gas stream must be cooled down to the appropriate temperature.
  • traces of harmful ingredients such as SO 2 must be removed from the flue gas stream before the actual CO 2 scrubbing. This is usually done with the help of a pre-wash with water and optionally basic additives (depending on the traces and their content).
  • the prewash can be set up as a separate apparatus or integrated as an additional apparatus in the actual laundry.
  • prewash and wash column For example, a separate installation of the prewash requires a large plant floor space. In addition, due to the necessary additional piping an additional pressure loss occurs. Finally, the gas distribution must be considered twice on a large column cross-section (prewash and wash column).
  • Object of the present invention is to provide a method of the type mentioned above and an apparatus for performing the method in such a way that a technical construction of the absorption column is realized in an economical manner
  • This object is achieved procedurally according to the invention that the entire, loaded with the washed carbon dioxide scrubbing liquid withdrawn from the absorption column and fed to a arranged outside the absorption column storage tank and then fed to a scrubbing liquid pump, which pumps the scrubbing liquid to a detergent regeneration stage.
  • the prewashing is carried out in a section of the absorption column designed as the lowest absorber bed.
  • the absorption column comprises e.g. a total of four absorption beds, wherein the uppermost absorption bed is used for backwashing, while the two central absorption beds for the actual leaching of the
  • Carbon dioxide are provided.
  • the lowermost absorption bed is used for prewashing the carbon dioxide-containing gas stream entering the absorption column in the bottom region.
  • a physically and / or chemically acting detergent is used for the washing liquid for the separation of carbon dioxide.
  • a detergent which contains at least one amine is suitable for this purpose.
  • the gas stream to be purified is formed by a carbon dioxide-containing exhaust gas stream of a large combustion plant, in particular a power plant, wherein fossil fuels are burned with air in the large combustion plant.
  • the leached carbon dioxide can be treated and sent for use and / or storage.
  • the carbon dioxide can be transported, for example via pipelines to a site and pressed there in rock layers of the subsurface or salt water bearing layers.
  • the wash is preferably carried out at about atmospheric pressure, in particular at a pressure between -100 mbar and +100 mbar.
  • the washing is advantageously carried out at a temperature in the range of 20 to 80 0 C, more preferably in the range of 30 to 45 0 C.
  • Wash water circulation prewash is conveniently cooled by means of cooling water or cold water from a refrigeration system.
  • all liquids from intermediate withdrawals in particular side draws and intermediate circulations, and bottom withdrawals of the absorption column can be fed to further feed containers.
  • the storage container is used as a collecting reservoir for the detergent of the entire system (the so-called hold-up).
  • the invention further relates to an apparatus for purifying a carbon dioxide-containing gas stream with an absorption column having a lower portion for prewashing the gas stream and an upper portion for at least partially leaching the carbon dioxide from the gas stream.
  • the stated object is achieved in that the absorption column is connected via at least one liquid withdrawal with a arranged outside the absorption column feed tank in connection, which is followed by a washing liquid pump.
  • all liquid withdrawals of the absorption column can be connected to further storage containers.
  • the prewash section of the gas stream is formed from the lowermost absorption bed of the absorption column.
  • the absorption column expediently has a diameter of at least 3 m, in particular 10 to 25 m, or equivalent rectangular cross section.
  • the invention is suitable for all conceivable large combustion systems in which carbon dioxide-containing gas flows incurred. These include, for example, power plants powered by fossil fuels, industrial furnaces, steam boilers and similar large-scale thermal plants for power and / or heat generation. In particular, the invention is suitable for so-called low-CO 2 coal power plants after the post-combustion capture process.
  • the figure shows an absorption column with integrated prewash.
  • the carbon dioxide-containing flue gas from a coal power plant is introduced via line 2 into the lower section 3 of the absorption column 1.
  • an absorption bed 4 is arranged, which represents one of a total of four absorption beds 4,5,6,7 of the absorption column 1.
  • a prewash of the gas stream takes place, in which the gas stream is cooled to the desired temperature for the actual CO 2 scrubbing of about 30 to 35 ° C and largely free of traces of harmful ingredients, in particular SO 2 .
  • water possibly with basic additives, such as ammonium compounds, trickled over the absorbent bed 3.
  • the thus pre-cleaned and cooled gas stream is subjected in the overlying section 8 of the absorption column 1 of the actual CO 2 scrubbing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

L'invention concerne un procédé et un dispositif d'épuration d'un flux gazeux contenant du dioxyde de carbone, selon lequel le flux gazeux est d'abord acheminé jusqu'à une section inférieure (3) d'une colonne d'absorption (1) d'un prélavage pour le traitement du flux gazeux puis, dans une section supérieure (8) de la colonne d'absorption (1 ), le dioxyde de carbone est au moins en partie enlevé par lavage du flux gazeux au moyen d'un liquide laveur. Pour améliorer la conception de la colonne d'absorption, il est proposé que la totalité du liquide laveur, chargé en dioxyde de carbone enlevé par lavage, soit soutiré de la colonne d'absorption (1 ) pour être recueilli dans un réservoir (11 ) placé sous la colonne d'absorption (1 ) puis cédé à une pompe (12) pour liquide laveur, qui cède par pompage le liquide laveur à un étage de régénération du détersif.
EP10704757A 2009-02-19 2010-02-12 Procede et dispositif d'epuration d'un flux gazeux contenant du dioxyde de carbone Withdrawn EP2399074A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009009476A DE102009009476A1 (de) 2009-02-19 2009-02-19 Verfahren und Vorrichtung zur Reinigung eines kohlendioxidhaltigen Gasstroms
PCT/EP2010/000880 WO2010094437A2 (fr) 2009-02-19 2010-02-12 Procédé et dispositif d'épuration d'un flux gazeux contenant du dioxyde de carbone

Publications (1)

Publication Number Publication Date
EP2399074A2 true EP2399074A2 (fr) 2011-12-28

Family

ID=42147047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10704757A Withdrawn EP2399074A2 (fr) 2009-02-19 2010-02-12 Procede et dispositif d'epuration d'un flux gazeux contenant du dioxyde de carbone

Country Status (7)

Country Link
US (1) US20120031269A1 (fr)
EP (1) EP2399074A2 (fr)
AU (1) AU2010214902A1 (fr)
CA (1) CA2750443A1 (fr)
DE (1) DE102009009476A1 (fr)
WO (1) WO2010094437A2 (fr)
ZA (1) ZA201105226B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012111185A1 (de) * 2012-11-20 2014-05-22 Thyssenkrupp Uhde Gmbh Apparat zur Gaswäsche
CN113877369A (zh) * 2020-07-03 2022-01-04 中石化石油工程技术服务有限公司 捕集回收co2的烟囱装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB775600A (en) * 1954-01-26 1957-05-29 Claes Wilhelm Pilo Process for the recovery of heat from hot gases
DE3112997A1 (de) * 1981-04-01 1982-10-21 Vinzenz 2000 Hamburg Siller "verfahren zur trocknung und rueckgewinnung von waermeenergie aus dem rauchgas von feuerungsanlagen und vorrichtung zur durchfuehrung des verfahrens"
US4568364A (en) * 1984-03-22 1986-02-04 Bechtel International Corporation Process for desulfurization of fuel gas
SE9300533L (sv) * 1993-02-18 1994-08-19 Flaekt Ab Sätt och anordning för absorption av svavelväte
US6607585B2 (en) * 1997-02-11 2003-08-19 David Morrow Raw natural gas processing system and method of processing raw natural gas
AT410180B (de) * 2001-04-12 2003-02-25 Scheuch Gmbh Verfahren und anlage zur rückgewinnung der latenten und fühlbaren wärme von aus feststofffeuerungen stammenden abgasen
DE102004011429A1 (de) * 2004-03-09 2005-09-29 Basf Ag Verfahren zum Entfernen von Kohlendioxid aus Gasströmen mit niedrigen Kohlendioxid-Partialdrücken
FI118629B (fi) * 2005-06-15 2008-01-31 Metso Power Oy Menetelmä ja laitteisto hiilidioksidin poistamiseksi rikkidioksidipitoisista savukaasuista

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010094437A2 *

Also Published As

Publication number Publication date
US20120031269A1 (en) 2012-02-09
WO2010094437A3 (fr) 2011-09-15
DE102009009476A1 (de) 2010-08-26
CA2750443A1 (fr) 2010-08-26
AU2010214902A1 (en) 2011-08-18
WO2010094437A2 (fr) 2010-08-26
ZA201105226B (en) 2012-03-28

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