WO2012067601A1 - Articles comprenant un sel d'acide carboxylique et leurs procédés de fabrication et d'utilisation - Google Patents

Articles comprenant un sel d'acide carboxylique et leurs procédés de fabrication et d'utilisation Download PDF

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Publication number
WO2012067601A1
WO2012067601A1 PCT/US2010/056681 US2010056681W WO2012067601A1 WO 2012067601 A1 WO2012067601 A1 WO 2012067601A1 US 2010056681 W US2010056681 W US 2010056681W WO 2012067601 A1 WO2012067601 A1 WO 2012067601A1
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WO
WIPO (PCT)
Prior art keywords
carboxylic acid
article
acid
gas
alkali salt
Prior art date
Application number
PCT/US2010/056681
Other languages
English (en)
Inventor
Dayue D. Jiang
Original Assignee
Corning Incorporated
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 Corning Incorporated filed Critical Corning Incorporated
Priority to CN201080052632.2A priority Critical patent/CN102711954B/zh
Priority to EP10779897A priority patent/EP2501458A1/fr
Priority to JP2013538700A priority patent/JP2014503340A/ja
Priority to PCT/US2010/056681 priority patent/WO2012067601A1/fr
Publication of WO2012067601A1 publication Critical patent/WO2012067601A1/fr

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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
    • B01D53/02—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28042—Shaped bodies; Monolithic structures
    • B01J20/28045—Honeycomb or cellular structures; Solid foams or sponges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
    • B01J20/3204—Inorganic carriers, supports or substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3234—Inorganic material layers
    • B01J20/3236—Inorganic material layers containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/3433—Regenerating or reactivating of sorbents or filter aids other than those covered by B01J20/3408 - B01J20/3425
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
    • B01J20/3475—Regenerating or reactivating using a particular desorbing compound or mixture in the liquid phase
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/20—Organic adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/30—Physical properties of adsorbents
    • B01D2253/34—Specific shapes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/30—Physical properties of adsorbents
    • B01D2253/34—Specific shapes
    • B01D2253/342—Monoliths
    • B01D2253/3425—Honeycomb shape
    • 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
    • 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
    • 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

  • This disclosure relates to carboxylic acid salt articles useful, for example, for the removal of an acid gas component from a gas.
  • C0 2 has been claimed to be the primary source in global warming (the green house effect).
  • Many industrial processes such as coal gasification, biomass gasification, steam reforming of hydrocarbons, partial oxidation of natural gas, and like processes, produce a great amount of C0 2 , H 2 S and other acidic gas containing gas streams. It is therefore desirable to remove and/or capture C0 2 and/or H 2 S and other acidic gases from those gas mixtures.
  • An exemplary article comprises a substrate and a solid carboxylic acid alkali salt disposed on the substrate, wherein the solid carboxylic acid alkali salt is derived from a carboxylic acid having at least one dissociation constant greater than or equal to 5.
  • One exemplary method comprises providing an article comprising a substrate and a solid carboxylic acid alkali salt disposed on the substrate, wherein the solid carboxylic acid alkali salt is derived from a carboxylic acid having at least one dissociation constant greater than or equal to 5; and contacting a gas comprising an acid gas component with the article to remove at least a portion of the acid gas component from the gas.
  • Another exemplary method comprises contacting a gas comprising an acid gas component with a solid carboxylic acid alkali salt to remove at least a portion of the acid gas component from the gas; wherein the solid carboxylic acid alkali salt is derived from a carboxylic acid having at least one dissociation constant greater than or equal to 5.
  • One embodiment is an article comprising a substrate and a solid carboxylic acid alkali salt disposed on the substrate, wherein the solid carboxylic acid alkali salt is derived from a carboxylic acid having at least one dissociation constant greater than or equal to 5.
  • the substrate comprises a glass or ceramic.
  • the substrate may be porous or non-porous.
  • the substrate may be in any appropriate form.
  • the substrate is in the form of fibrous material, such as a glass wool.
  • the substrate is in the form of a flow-through substrate, such as a ceramic honeycomb.
  • the substrate is substantially planar, such as in the form of a plate.
  • the substrate may comprise organic materials, for example, lignocellular material (e.g. wood powder) or polymer (e.g. polymeric foam).
  • flow-through substrate means a shaped body comprising inner passageways, such as straight or serpentine channels and/or porous networks that would permit the flow of a gas through the body.
  • the flow-through substrate comprises a dimension in the flow-through direction of at least 1 cm, at least 2 cm, at least 3 cm, at least 4 cm, at least 5 cm, at least 6 cm, at least 7 cm, at least 8 cm, at least 9 cm, or at least 10 cm from the inlet to the outlet.
  • the flow-through substrate has a honeycomb structure comprising an inlet end, an outlet end, and inner channels extending from the inlet end to the outlet end.
  • the honeycomb comprises a multiplicity of cells extending from the inlet end to the outlet end, the cells being defined by intersecting cell walls.
  • the honeycomb substrate could optionally comprise one or more selectively plugged honeycomb substrate cell ends to provide a wall flow-through structure that allows for more intimate contact between the gas and cell walls.
  • the carboxylic acid alkali salt is a salt derived from a carboxylic acid.
  • the carboxylic acid alkali salt may be derived from carboxylic acids having at least one dissociation constant greater than or equal to 5, for instance, succinic acid, adipic acid, maleic acid, glutaric acid, itaconic acid, heptanedioic acid, o-phthalic acid, or methylsuccininc acid.
  • Mono-, di-, or other multi-carboxylic acids may be used to prepare the carboxylic acid alkali salt.
  • Di- or other multi-carboxylic acids have at least one dissociation constant greater than or equal to 5, for example two or three dissociation constants greater than or equal to 5, and may also have one or more dissociation constants less than 5.
  • the carboxylic acid alkali salt is a carboxylic acid potassium salt, prepared via reaction between potassium hydroxide in solution and a carboxylic acid.
  • the carboxylic acid alkali salt is a carboxylic acid sodium salt, prepared via reaction between sodium hydroxide in solution and a carboxylic acid.
  • Another embodiment is a method of making an article comprising a substrate and a solid carboxylic acid alkali salt disposed on the substrate, wherein the solid carboxylic acid alkali salt is derived from a carboxylic acid having at least one dissociation constant greater than or equal to 5, which comprises providing an substrate; applying a carboxylic acid alkali salt solution to the substrate to form a coated substrate; and drying the coated substrate.
  • the substrate and solid carboxylic acid alkali salt may be selected, for instance, from the substrates and solid carboxylic acid alkali salts described above.
  • the solid carboxylic acid alkali salt in this method forms a coating on the substrate.
  • coating means that solid carboxylic acid alkali salt is disposed on an exposed surface of the substrate.
  • the coating may coat all or a portion of the surface of the substrate, and may impregnate the substrate to any extent if the surface of the substrate is porous.
  • the carboxylic acid alkali salt solution may be prepared, for example, by mixing a carboxylic acid and a solution of potassium hydroxide in any molar ration, such as at a molar ratio of about 1 : 1 COOH to OH in a solvent, such as, water.
  • the pH of the resulting solution can be adjusted using the potassium hydroxide solution and/or the carboxylic acid to fall within the range of 8 to 14.
  • sodium hydroxide can be used instead of potassium hydroxide.
  • the carboxylic acid alkali salt solution may be applied to the substrate in any suitable manner, for example, spraying or dipping.
  • a substrate is submerged in the carboxylic acid alkali salt solution for any appropriate length of time, such as, 10-15 seconds.
  • the coated substrate is then allowed to dry at room temperature.
  • the coated substrate may also be dried in a heated environment, for example, an oven. It is during the drying process that the solid carboxylic acid alkali salt is formed on the substrate. A complete evaporation of water during the drying process is not required.
  • An article including any combination of the embodiments described above may be used in a method including contacting a gas comprising an acid gas component with the article to remove at least a portion of the acid gas component from the gas.
  • One embodiment is a method comprising contacting a gas comprising an acid gas component with an article comprising a substrate and a solid carboxylic acid alkali salt disposed on the substrate, wherein the solid carboxylic acid alkali salt is derived from a carboxylic acid having at least one dissociation constant greater than or equal to 5; to remove at least a portion of the acid gas component from the gas.
  • the gas may be in the form of a gas or a gas mixture.
  • the gas or gas mixture may also contain another phase, such as a solid particulate in either a gas or liquid, or droplets of liquid in a gas.
  • Contacting the gas with the article may be done by, for example, passing a stream of the gas across an external surface of the article, or passing a stream of gas through an internal volume of the article. In one embodiment, contacting the gas with the article occurs at a temperature of from 0°C to 100°C, for example 25°C, 50°C, or 75°C.
  • An acid gas is one that, when dissolved in a solvent, leads to a solution with a pH less than 7.
  • Exemplary acid gases include H 2 S and C0 2 .
  • the acid gas component may be present in the gas being treated in any proportion.
  • the acid gas may be removed from the gas via adsorption, absorption, or other entrapment of the acid gas on the article, either physically, chemically, or both physically and chemically. At least a portion of the acid gas component is removed from the gas, for example, some, or all of the acid gas.
  • the article removes at least 5%, at least 10%, at least 20%, at least 50%, at least 70%), or at least 90%> of the acid gas component from the gas.
  • H 2 S is removed from the gas.
  • C0 2 is removed from the gas.
  • the article is capable of capturing the acid gas component in a humidified or dry environment.
  • Another embodiment is a method comprising contacting a gas comprising an acid gas component with a solid carboxylic acid alkali salt to remove at least a portion of the acid gas component from the gas, wherein the solid carboxylic acid alkali salt is derived from a carboxylic acid having at least one dissociation constant greater than or equal to 5.
  • the solid carboxylic acid alkali salt may be used to remove an acid gas component from a gas without the use of a substrate, or with the solid carboxylic acid alkali salt disposed on an inorganic or organic substrate, including any of the substrates mentioned above.
  • the solid carboxylic acid alkali salt may be in any appropriate form, such as in the form of a powder or in the form of a shaped article formed from the solid carboxylic acid alkali salt with or without the addition of a binder. Examples of such shaped articles include pellets or flow-through substrates.
  • the carboxylic acid alkali salt may be selected from the carboxylic acid alkali salts described previously.
  • the solid carboxylic acid alkali salt may be prepared by any suitable technique, such as by precipitating it from a carboxylic acid alkali salt solution.
  • Further embodiments comprise regenerating any of the above-described articles or carboxylic acid alkali salts by removing at least a portion of the acid gas from the article or carboxylic acid alkali salt.
  • regenerating the article or carboxylic acid alkali salt comprises heating the article or carboxylic acid alkali salt to a temperature sufficient to remove the acid gas. It should be appreciated that a sufficient temperature to remove the acid gas will depend, in part, on the amount of acid gas that is present. In one embodiment, a sufficient temperature can comprise heating the article or carboxylic acid alkali salt at a temperature above 100°C, for example 130°C, 150°C, or 170°C.
  • Heating of the article or carboxylic acid alkali salt can be achieved by any suitable means, for example, by heating in an oven, or by passing a stream of a heated gas across an external surface of the article or carboxylic acid alkali salt, or through an internal volume of an article.
  • An alternative embodiment comprises regenerating the article or carboxylic acid alkali salt without external heating.
  • the article or carboxylic acid alkali salt may be regenerated by contacting the article or carboxylic acid alkali salt with a solvent, such as water.
  • the carboxylic acid alkali salt may or may not be chemically bound to the substrate.
  • the carboxylic acid alkali salt coating may be removed from the substrate by any suitable technique, for example, by washing.
  • the carboxylic acid alkali salt coating is removed from the substrate, allowing the substrate to be recoated with a new carboxylic acid alkali salt solution.
  • a solution of 20% potassium salt of oxalic acid (OA) was prepared by mixing oxalic acid and a 45% solution of potassium hydroxide at a molar ratio of 1 : 1 COOH to OH in water. The pH of the resulting solution was adjusted using KOH solution and/or the carboxylic acid to fall within the range of 8 to 14. Glass wool filter paper was submerged into the potassium salt solution for 10-15 seconds and then dried at room temperature overnight. Before C0 2 capture testing the coated glass wool filter paper was dried in an oven with forced air at 100°C for 15 minutes. The amount of potassium salt of oxalic acid added to the glass wool filter paper was determined by mass difference.
  • the coated glass wool filter paper was placed in a humidified C0 2 atmosphere for 30 minutes, with a small back pressure applied. The coated glass wool filter paper was removed and allowed to dry at room temperature overnight. Mass of the coated glass wool filter paper was measured immediately after removal from C0 2 atmosphere, after drying overnight, and after drying at 100°C for 15 minutes. An increase in mass of the glass wool filter paper was observed after exposure to the humidified C0 2 atmosphere. The added mass was lost after exposure to drying at 100°C for 15 minutes. Control samples were also tested in humidified nitrogen or air atmosphere. No mass change was observed in the control samples.
  • TP A terephthalic acid
  • BTCA butanetetracarboxylic acid
  • PAA polyacrylic acid
  • SA succinic acid
  • AA adipic acid

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Gas Separation By Absorption (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treating Waste Gases (AREA)

Abstract

L'invention porte sur un article comprenant un substrat ; et un sel alcalin d'acide carboxylique disposé sur le substrat, le sel alcalin d'acide carboxylique étant issu d'un acide carboxylique ayant au moins une constante de dissociation supérieure ou égale à 5. L'article peut être utile, par exemple, dans l'élimination d'un composant gazeux acide d'un gaz.
PCT/US2010/056681 2009-11-24 2010-11-15 Articles comprenant un sel d'acide carboxylique et leurs procédés de fabrication et d'utilisation WO2012067601A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201080052632.2A CN102711954B (zh) 2010-11-15 2010-11-15 羧酸盐制品及其制备和使用方法
EP10779897A EP2501458A1 (fr) 2009-11-24 2010-11-15 Articles comprenant un sel d'acide carboxylique et leurs procédés de fabrication et d'utilisation
JP2013538700A JP2014503340A (ja) 2010-11-15 2010-11-15 カルボン酸塩物品およびその作製および使用方法
PCT/US2010/056681 WO2012067601A1 (fr) 2010-11-15 2010-11-15 Articles comprenant un sel d'acide carboxylique et leurs procédés de fabrication et d'utilisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2010/056681 WO2012067601A1 (fr) 2010-11-15 2010-11-15 Articles comprenant un sel d'acide carboxylique et leurs procédés de fabrication et d'utilisation

Publications (1)

Publication Number Publication Date
WO2012067601A1 true WO2012067601A1 (fr) 2012-05-24

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PCT/US2010/056681 WO2012067601A1 (fr) 2009-11-24 2010-11-15 Articles comprenant un sel d'acide carboxylique et leurs procédés de fabrication et d'utilisation

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Country Link
JP (1) JP2014503340A (fr)
CN (1) CN102711954B (fr)
WO (1) WO2012067601A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2792732B1 (fr) 2013-04-15 2016-11-02 Baker Hughes Incorporated Sels de carboxylate métallique comme piégeurs h2s mélangés dans la production mixte ou des systèmes de gaz sec
US10279307B2 (en) 2013-12-19 2019-05-07 C-Capture Ltd. System for the capture and release of acid gases

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US3532637A (en) * 1967-04-05 1970-10-06 Gen Am Transport Solid regenerable absorber for acid gases
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US5603927A (en) * 1992-12-08 1997-02-18 Kabushiki Kaisha Toyota Chuo Kenkyusho Material for removing offensive odor
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US20080236389A1 (en) * 2006-04-24 2008-10-02 Mead Westvaco Corporation Impregnated Monoliths
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US3532637A (en) * 1967-04-05 1970-10-06 Gen Am Transport Solid regenerable absorber for acid gases
US5231063A (en) * 1990-04-16 1993-07-27 Kabushiki Kaisha Toyota Chuo Kenkyusho Composite adsorbent and process for producing same
US5603927A (en) * 1992-12-08 1997-02-18 Kabushiki Kaisha Toyota Chuo Kenkyusho Material for removing offensive odor
JPH07178152A (ja) * 1993-12-22 1995-07-18 Kuraray Chem Corp 脂肪族アルデヒド吸着剤
US20090143506A1 (en) * 2003-11-10 2009-06-04 Hatsuhiko Harashina Aldehyde inhibitor composition and polyacetal resin composition
US20080236389A1 (en) * 2006-04-24 2008-10-02 Mead Westvaco Corporation Impregnated Monoliths
WO2008099604A1 (fr) * 2007-02-15 2008-08-21 Hokkaido Mitsui Chemicals, Inc. Piégeur de formaldéhyde et son procédé de production

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2792732B1 (fr) 2013-04-15 2016-11-02 Baker Hughes Incorporated Sels de carboxylate métallique comme piégeurs h2s mélangés dans la production mixte ou des systèmes de gaz sec
US10279307B2 (en) 2013-12-19 2019-05-07 C-Capture Ltd. System for the capture and release of acid gases

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CN102711954A (zh) 2012-10-03
JP2014503340A (ja) 2014-02-13
CN102711954B (zh) 2014-12-10

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