WO1998055210A1 - Process and apparatus for the treatment of carbon dioxide with carbonic anhydrase - Google Patents

Process and apparatus for the treatment of carbon dioxide with carbonic anhydrase Download PDF

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Publication number
WO1998055210A1
WO1998055210A1 PCT/CA1998/000541 CA9800541W WO9855210A1 WO 1998055210 A1 WO1998055210 A1 WO 1998055210A1 CA 9800541 W CA9800541 W CA 9800541W WO 9855210 A1 WO9855210 A1 WO 9855210A1
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WO
WIPO (PCT)
Prior art keywords
bioreactor
carbonic anhydrase
gas
carbon dioxide
ions
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.)
Ceased
Application number
PCT/CA1998/000541
Other languages
English (en)
French (fr)
Inventor
Réjean BLAIS
Peter A. Rogers
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.)
SYSTEMES ENVIROBIO Inc
Original Assignee
SYSTEMES ENVIROBIO Inc
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 SYSTEMES ENVIROBIO Inc filed Critical SYSTEMES ENVIROBIO Inc
Priority to CA002291785A priority Critical patent/CA2291785C/en
Priority to DE69813811T priority patent/DE69813811T2/de
Priority to AU77533/98A priority patent/AU7753398A/en
Priority to US09/424,852 priority patent/US6524843B1/en
Priority to EP98925349A priority patent/EP0991462B1/en
Priority to AT98925349T priority patent/ATE238094T1/de
Priority to JP50118099A priority patent/JP2002508702A/ja
Publication of WO1998055210A1 publication Critical patent/WO1998055210A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/84—Biological processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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 generally to a process for the extraction, production and purification of carbon dioxide gas. More particularly, it relates to the use of a biological molecule, namely carbonic anhydrase, to effect the reversible hydration of carbon dioxide. Carbonic anhydrase can be used for the production, purification of carbon dioxide and the products of the hydration reaction, hydrogen and bicarbonate ions. Specifically, the invention relates to a process whereby immobilized carbonic anhydrase contained within a reactor device catalyses the reversible hydration of carbon dioxide. The invention also relates to an apparatus for performing the process. The process may be employed for the production of hydrogen and bicarbonate ions.
  • Carbonic anhydrase (EC 4.2.1.1.) is a globular zinc metalloenzyme of molecular mass 30,000. The enzyme was discovered in 1933 and has been the subject of intense scientific investigation. Multiple isoforms have been discovered in plant and animal tissues. The enzyme also exists in plant tissues where it is believed to facilitate the transport of carbon dioxide. Red blood cells contain isoenzymes I and II, which are the most active. Carbonic anhydrase II has the highest molecular turnover number of any known enzyme. One molecule of carbonic anhydrase can hydrate 36,000,000 molecules of carbon dioxide in a period of 60 seconds. Physiologically, carbonic anhydrase facilitates the removal of carbon dioxide from the mammalian body. The general enzyme reaction is shown below in equation 1. Equation 1 :
  • Carbonic anhydrase has been used in many studies directed at improving or testing of various methods of protein immobilization.
  • the high molecular turnover rate of the enzyme renders it an ideal protein for these types of experiments.
  • An object of the present invention is to propose a process and an apparatus that will satisfy these needs.
  • a process for removing C0 2 from a CO ⁇ containing gas characterized in that it comprises the step of: a) contacting the C0 2 -containing gas with an aqueous liquid, preferably water, in a bioreactor containing immobilized carbonic anhydrase, or an analog thereof, the carbonic anhydrase catalysing the hydration of the C0 2 into hydrogen ions and bicarbonate ions.
  • step a) there is a step of immobilizing carbonic anhydrase in the bioreactor.
  • the step of immobilizing carbonic anhydrase in the bioreactor may comprise the step of covalently binding carbonic anhydrase to an inert solid support material mounted in the bioreactor.
  • the step a) of contacting the C0 2 -containing gas with an aqueous liquid comprises the steps of directing a stream of the C0 2 - containing gas upwards into the bioreactor and directing a stream of the aqueous liquid downwards such that the stream of C0 2 -containing gas flows countercurrent the stream of the aqueous solution.
  • the process comprises, after step a), step b) of feeding the hydrogen ions and bicarbonate ions obtained in step a) into a second bioreactor containing immobilized carbonic anhydrase which catalyses the conversion of the hydrogen ions and the bicarbonate ions into concentrated C0 2 and water.
  • the process comprises, after step a), the step of feeding the hydrogen ions and bicarbonate ions obtained in step a) into an ion exchanger containing hydroxyl ions so that the carbonate ions are exchanged for the hydroxyl ions which are then free to combine with hydrogen ions to form water.
  • the present invention also relates to an apparatus for the management of C0 2 using immobilized carbonic anhydrase or analog thereof.
  • the apparatus comprises an upright bioreactor for growing carbonic anhydrase therein.
  • the bioreactor comprises a bottom chamber having a gas inlet to receive a
  • the bioreactor further comprises an upper chamber having a liquid inlet to receive an aqueous liquid and a gas outlet to evacuate any gas from the bioreactor.
  • a reaction chamber is disposed between and is in fluid communication with the bottom chamber and the upper chamber.
  • This reaction chamber is characterized in that it comprises a plurality of inert organic supports mounted therein for covalently immobilizing carbonic anhydrase.
  • the C0 2 -containing gas is fed through the gas inlet and an aqueous liquid, preferably water, is fed through the liquid inlet.
  • the C0 2 -containing gas and the aqueous liquid flows through the reaction chamber where carbonic anhydrase therein catalyses the hydration of C0 2 , thereby forming hydrogen ions and carbonate ions.
  • the apparatus comprises a second bioreactor in series with the upright bioreactor which is hereinafter called a first bioreactor.
  • the second bioreactor is substantially similar to the first bioreactor. It comprises a liquid inlet connected with the liquid outlet of the first bioreactor for receiving the liquid solution from the first bioreactor.
  • a reaction chamber for growing carbonic anhydrase.
  • This reaction chamber is in fluid communication with the liquid inlet and comprises a plurality of inert organic supports mounted therein for covalently immobilizing carbonic anhydrase.
  • the reaction chamber is in fluid communication with a gas outlet to evacuate a gas containing carbon dioxide obtained in the chamber.
  • a liquid outlet is in fluid communication with the reaction chamber to evacuate water obtained in the reaction chamber.
  • the second bioreactor preferably comprises means for controlling a pressure in the reaction chamber of the second bioreactor.
  • the apparatus further comprises an ion exchanger having an inlet for receiving the liquid solution from the bioreactor.
  • the present invention is also directed to the use of carbonic anhydrase or analog thereof covalently immobilized in a bioreactor to remove carbon dioxide from a C0 2 -containing gas, or to produce hydrogen and carbonate ions, or to the use of carbonic anhydrase or analog thereof covalently immobilized in a bioreactor to produce C0 2 from enriched solutions of hydrogen and bicarbonate ions.
  • Figure 1 is a cross-sectional elevational view of a tower-type bioreactor according to a preferred embodiment of the present invention
  • Figure 2 is a schematic flow chart of a first preferred embodiment of the process according to the present invention
  • Figure 3 is a schematic flow chart of a second preferred embodiment of the process according to the present invention.
  • the apparatus (2) comprises an upright bioreactor (4) for growing carbonic anhydrase therein.
  • the bioreactor (4) comprises a lower chamber (6) having a gas inlet (8) to receive a C0 2 -containing gas (10) and a liquid outlet (12) to evacuate from the bioreactor (4) a liquid solution (14) containing hydrogen ions and bicarbonate ions produced in the bioreactor (4).
  • the bioreactor (4) further comprises an upper chamber (16) having a liquid inlet (18) to receive an aqueous liquid (20) and a gas outlet (22) to evacuate any gas (24) from the bioreactor (4).
  • a reaction chamber (26) is disposed between the lower chamber (6) and the upper chamber(16).
  • the reaction chamber (26) of the bioreactor (4) illustrated is preferably divided in three sub-chambers.
  • the reaction chamber (26) is in fluid communication with the lower chamber (6) and the upper chamber (16).
  • the liquid inlet (18) of the upper chamber (16) is connected to a pipe system (28) enclosed therein and having at least one liquid outlet (30) into the reaction chamber (26) such that the aqueous liquid (20) entering the bioreactor
  • the reaction chamber (26) has a lower surface permeable to gas and liquid such that the stream of C0 2 -containing gas entering the bioreactor (4) from the lower chamber (6) flows upwards into the reaction chamber (26) and the liquid in the reaction chamber (26) flows downwards towards and into the lower chamber (6).
  • the reaction chamber (26) is characterized in that it comprises a plurality of inert organic supports, schematically represented in Figure 1 as numeral reference (32), mounted therein for covalently immobilizing carbonic anhydrase (33).
  • These supports (32) are preferably made of ceramic such as silica, namely silica burl saddles or they may be made of polymer such as nylon, polystyrene and polyethylene.
  • the immobilization technique preferably uses one of the following bonding agents: imidocarbonate (silicon), carbondiimide (silica and nylon) and imine (silica and nylon).
  • the polystyrene, nylon and polyethylene may be chemically modified with nitric acid to increase covalent bounding with the amine groups of the enzyme.
  • the C0 2 -containing feed gas (10) may consist of ambient air or any gaseous mixture containing carbon dioxide.
  • the gas (10) may be filtered through a conventional filtering means (34) known in the art to concentrate the carbon dioxide and/or remove physical impurities.
  • Control means for controlling the C0 2 -containing gas flow (10) through the gas inlet (8) is provided.
  • the gas (10) is then fed into the lower portion (6) of the bioreactor body (4) using preferably an appropriate valve system (36) for volume and input velocity control.
  • the bioreactor (4) is constructed as a packed tower, a classical design used in numerous applications.
  • the preferably filtered aqueous or organic solvent (20) enters the bioreactor (4) from the upper chamber (16) and flows downwards either by gravity or pressure controlled pumping.
  • the carbon dioxide of the input gas (10) will diffuse preferentially into the liquid phase (20) as the carbonic anhydrase transforms the gas into hydrogen and bicarbonate ions.
  • the resulting liquid solution (14) of ions leaves the bioreactor (4) for subsequent use.
  • the unique aspect of the invention is the use of carbonic anhydrase as a means to produce enriched solutions of bicarbonate ions.
  • the composition of the input gas (10) may be varied along with the volume and speed of delivery.
  • the bioreactor (4) may be deployed as a closed system so that the feed gas (10) can be compressed and/or enriched to enhance the kinetics of the mass transfer of the carbon dioxide from the gas to the liquid phase.
  • this first bioreactor (4) design may preferably be coupled to an anion exchange system (39) with the resin in the hydroxide form.
  • the ion exchanger (39) has an inlet (37) for receiving the liquid solution (14) from the bioreactor (4). Since the carbon dioxide hydration reaction produces hydrogen and bicarbonate ions in equimolar quantities, this solution may be fed directly into the ion exchange system (37).
  • the apparatus (2) for the management of carbon dioxide may further comprise a second bioreactor (38) similar to the first one and connected in series therewith. This particular configuration operates as a closed system. This system serves to produce carbon dioxide and operates in a manner similar to the individual bioreactor design of Figure 1.
  • the liquid solution (14) containing a relatively high concentration of hydrogen and bicarbonate ions produced in the first bioreactor (4) is fed to the second bioreactor (38) in which carbon dioxide is formed in the reaction catalysed by the carbonic anhydrase.
  • This removal of the gas from the aqueous phase may be enhanced by the application of a slight (i.e., 7-9 mm Hg) negative pressure.
  • the concentrated carbon dioxide can then be recovered for subsequent use. Since this second bioreactor (38) is similar to the first one, it is schematically illustrated as a box in Figure 3.
  • This second bioreactor (38) comprises a liquid inlet (40) connected with the liquid outlet (12) of the first bioreactor (4) for receiving the liquid solution (14) from the first bioreactor (4).
  • the second bioreactor (38) comprises a reaction chamber similar to the reaction chamber (26) of the first bioreactor (4) for growing carbonic anhydrase.
  • the reaction chamber is in fluid communication with the liquid inlet (40) and comprises a plurality of inert organic supports mounted therein for covalently immobilizing carbonic anhydrase.
  • a gas outlet (42) is in fluid communication with the reaction chamber to evacuate carbon dioxide obtained in the chamber.
  • a liquid outlet (44) is in fluid communication with the reaction chamber to evacuate water (46) containing a small amount of hydrogen and bicarbonate ions obtained in the reaction chamber.
  • the second bioreactor (38) may preferably comprise means for controlling a pressure in the reaction chamber
  • the process and apparatus according to the present invention may be used for the extraction, production and purification of carbon dioxide gas.
  • the process may also be employed for the production of aqueous and/or organic solutions of bicarbonate ions and hydrogen ions using a precursor feed stream of gas containing carbon dioxide. It could be very advantageous to use such process and apparatus in any closed space such as a submarine.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Treating Waste Gases (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Gas Separation By Absorption (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
PCT/CA1998/000541 1997-06-04 1998-06-02 Process and apparatus for the treatment of carbon dioxide with carbonic anhydrase Ceased WO1998055210A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CA002291785A CA2291785C (en) 1997-06-04 1998-06-02 Process and apparatus for the treatment of carbon dioxide with carbonic anhydrase
DE69813811T DE69813811T2 (de) 1997-06-04 1998-06-02 Verfahren zur behandlung von kohlendioxid mit carboanhydrase
AU77533/98A AU7753398A (en) 1997-06-04 1998-06-02 Process and apparatus for the treatment of carbon dioxide with carbonic anhydrase
US09/424,852 US6524843B1 (en) 1997-06-04 1998-06-02 Process and apparatus for the treatment of carbon dioxide with carbonic anhydrase
EP98925349A EP0991462B1 (en) 1997-06-04 1998-06-02 Process for the treatment of carbon dioxide with carbonic anhydrase
AT98925349T ATE238094T1 (de) 1997-06-04 1998-06-02 Verfahren zur behandlung von kohlendioxid mit carboanhydrase
JP50118099A JP2002508702A (ja) 1997-06-04 1998-06-02 炭酸脱水酵素による二酸化炭素の管理

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9711439.1A GB9711439D0 (en) 1997-06-04 1997-06-04 Bioreactor for dioxide management
GB9711439.1 1997-06-04

Publications (1)

Publication Number Publication Date
WO1998055210A1 true WO1998055210A1 (en) 1998-12-10

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US (1) US6524843B1 (enExample)
EP (1) EP0991462B1 (enExample)
JP (1) JP2002508702A (enExample)
AT (1) ATE238094T1 (enExample)
AU (1) AU7753398A (enExample)
CA (1) CA2291785C (enExample)
DE (1) DE69813811T2 (enExample)
GB (1) GB9711439D0 (enExample)
WO (1) WO1998055210A1 (enExample)

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JP2002508702A (ja) 2002-03-19
CA2291785C (en) 2005-08-16
DE69813811D1 (de) 2003-05-28
EP0991462B1 (en) 2003-04-23
CA2291785A1 (en) 1998-12-10
ATE238094T1 (de) 2003-05-15
US6524843B1 (en) 2003-02-25
EP0991462A1 (en) 2000-04-12
DE69813811T2 (de) 2004-03-11
GB9711439D0 (en) 1997-07-30

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