WO2005103193A1 - Composition de support de chauffage - Google Patents

Composition de support de chauffage Download PDF

Info

Publication number
WO2005103193A1
WO2005103193A1 PCT/JP2004/004569 JP2004004569W WO2005103193A1 WO 2005103193 A1 WO2005103193 A1 WO 2005103193A1 JP 2004004569 W JP2004004569 W JP 2004004569W WO 2005103193 A1 WO2005103193 A1 WO 2005103193A1
Authority
WO
WIPO (PCT)
Prior art keywords
acid
composition according
heat carrier
ether
glycol
Prior art date
Application number
PCT/JP2004/004569
Other languages
English (en)
Japanese (ja)
Inventor
Hiroshi Egawa
Nobuyuki Kaga
Original Assignee
Shishiai-Kabushikigaisha
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 Shishiai-Kabushikigaisha filed Critical Shishiai-Kabushikigaisha
Priority to PCT/JP2004/004569 priority Critical patent/WO2005103193A1/fr
Priority to JP2006512428A priority patent/JP4785734B2/ja
Publication of WO2005103193A1 publication Critical patent/WO2005103193A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04029—Heat exchange using liquids
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/08—Materials not undergoing a change of physical state when used
    • C09K5/10—Liquid materials
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the present invention relates to a heating medium composition applied to, for example, a cooling system of an internal combustion engine such as an engine, a cooling system of a fuel cell, a solar system, a floor heating system, an air conditioner, and the like.
  • the present invention relates to a heat medium composition that can effectively prevent metal corrosion and maintain low electrical conductivity over a long period of time by effectively suppressing it.
  • heat medium compositions applied to cooling systems for internal combustion engines such as engines, solar systems, floor heating systems, air conditioning equipment, etc.
  • a protective agent such as a protective agent.
  • the glycols and alcohols used as a base are exposed to a high-temperature and high-pressure atmosphere during use, so they are slightly oxidized with the passage of time, and glycolic acid, etc. To acid. Therefore, over a long period of use, the oxidation of the base in the heat medium composition further progresses, and accordingly, the pH value of the heat medium composition also gradually decreases, and the cooling of the internal combustion engine such as an engine is cooled.
  • a fuel cell is generally configured as a stack having a structure in which a large number of single cells, which are power generation units, are stacked. During power generation, heat is generated from this stack, so a cooling plate is inserted every few cells to cool it, and the cooling liquid flows through the cooling liquid passage inside this cooling plate, thereby cooling the stack. It is like that.
  • the fuel cell coolant circulates through the stack that is generating electricity and cools the stack, so if the electrical conductivity of the coolant is high, it is generated in the stack that is generating electricity.
  • the generated electricity flows to the coolant side, which lowers the power generation in the fuel cell.
  • pure water having low electrical conductivity in other words, pure water having high electrical insulation, has been used as the coolant for conventional fuel cells.
  • the coolant will drop to ambient temperature when not in operation. In particular, if there is a possibility of use below the freezing point, pure water freezes. Pure water volume expansion may damage the cooling plate and impair the fuel cell performance.
  • the ion-exchange resin is used to remove the ionic substances generated by oxidation of the base material, and the ion-exchange amount of the ion-exchange resin quickly decreases, and the exchange life is significantly reduced.
  • the present invention has been made in view of such a technical problem, and by effectively suppressing oxidation of a base material, it is possible to maintain metal corrosion prevention and low electrical conductivity over a long period of time. It is intended to provide a heat medium composition. Disclosure of the invention
  • the heat medium composition of the present invention (hereinafter, simply referred to as a composition) is characterized by containing trehalose in a base for the purpose of suppressing the oxidation of the base.
  • the base is preferably one having antifreeze properties, specifically, one composed of one or a mixture of two or more selected from water, alcohols, glycols and dalicol ethers .
  • alcohols include those composed of one or a mixture of two or more selected from methanol, ethanol, propanol, butanol, pentanol, hexanol, heptanol, and octanol. .
  • glycols examples include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, 1,3-propanediol, 1,3-butanediol, 1,5-pentanediol, and hexylene glycol. A mixture of one or more selected from among them can be mentioned.
  • glycol ethers examples include ethylene glycol monomethyl ether, diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, tetraethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monoethyl ether, triethylene glycol monoethyl ether, One or a mixture of two or more selected from tetraethylene glycol monoethyl ether, ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, and tetraethylene glycol monobutyl ether Can be mentioned.
  • the composition of the present invention suppresses the oxidation of the base by including trehalose in the base, thereby lowering the pH value of the heat medium composition due to the oxidation of the base. In addition, an increase in conductivity is suppressed.
  • the conductivity of the composition can be maintained at 10 ⁇ SZcm or less. Further, even when used for a long period of time, the fluctuation of the conductivity of the composition is maintained within the range of 0 to 10 SZ cm.
  • Trehalose having such an action and effect is a non-reducing disaccharide in which two molecules of D-darcos are linked in a 1,1-linked form. ⁇ , ⁇ -trehalose
  • composition of the present invention at least one or more kinds of antioxidants can be contained in addition to the above-mentioned base and trehalose.
  • a protective agent for example, Aliphatic carboxylic acids, aromatic carboxylic acids, triazoles, diazoles, thiazoles, phosphoric acid, silicic acid, nitric acid, nitrous acid, boric acid, molybdic acid, their alkali metal salts, ammonium salts, amine salts, and One or a mixture of two or more selected from amines can be mentioned.
  • Aliphatic carboxylic acids include, for example, pentanoic acid, hexanoic acid, heptanoic acid, octanoic acid, 2-ethylhexanoic acid, nonanoic acid, decanoic acid, pendelic acid, dodecanoic acid, oleic acid, linoleic acid, linolenic acid , Aliphatic monobasic acids such as ricinoleic acid and stearic acid, maleic acid, fumaric acid, itaconic acid, citraconic acid, mesaconic acid, oxalic acid, malonic acid, succinic acid, daltaric acid, adipic acid, piperic acid, suberic acid, Examples include aliphatic dibasic acids such as azelaic acid, sebacic acid, pendecane diacid, dodecane diacid, brassic acid, and butyric acid.
  • aromatic carboxylic acid examples include benzoic acids such as benzoic acid, nitrobenzoic acid, and hydroxybenzoic acid, P-toluic acid, P-ethylbenzoic acid, p-propylbenzoic acid, p-isopropylbenzoic acid, p_tert.
  • heptyl alkyl benzoate such as benzoic acid, the general formula RO- C 6 H 4 _ COOH ( !
  • R is C C s alkyl group) alkoxy benzoic acid represented by the general formula R- C 6 H 4 - CHCO OH ( R is an alkyl group or an alkoxy group represented by- ⁇ ), cinnamic acid, alkylcinnamic acid, alkoxycinnamic acid, and the like.
  • triazoles include benzotriazole, tolyltriazole, 4-phenyl-1,2,3-triazole, 2-naphthotriazole, and 4-nitrobenzotriazole, and the like.
  • Examples of the azoles include imidazoline, imidazole, mercaptoimidazoline, mercaptoimidazole, benzimidazole, methylimidazole, and the like.
  • Examples of thiazoles include benzothiazole, mercapcap
  • Examples of the phosphoric acid include orthophosphoric acid, pyrophosphoric acid, trimetaphosphoric acid, tetrametaphosphoric acid, and the like.
  • the composition of the present invention may contain, for example, caustic for adjusting pH, a dye, an antifoaming agent, a preservative, and the like, in addition to the base, trehalose, and an antioxidant. .
  • Table 1 shows, as a preferred embodiment of this composition, a base obtained by adding ethylene glycol for the purpose of imparting antifreeze to ion-exchanged water and containing trehalose (see Example 1), a composition obtained by adding toltriazole as an antibacterial agent to the composition of Example 1 (Example 2), a composition comprising only the base of Example 1 (Comparative Example 1), and a composition of Example 1
  • the base obtained by adding glucose to the base Comparative Example 2 and the base obtained by adding tolyltriazole as a protective agent to the composition of Comparative Example 2 (Comparative Example 3) were listed.
  • Table 2 shows that the initial conductivity of each of the compositions of Examples 1 and 2 and Comparative Examples 1 to 3 was as low as 0.4 iS / cm or less. When the conductivity was examined later, the conductivity of each composition of Comparative Examples 1 to 3 exceeded 39 S / cm, and it was confirmed that the conductivity was significantly increased. On the other hand, for each of the compositions of Examples 1 and 2, the increase in the conductivity was small, the conductivity was less than 10 S / cm, and the low conductivity was maintained. Was confirmed.
  • the degradation products of each of the compositions of Comparative Examples 1 to 3 increased significantly after the degradation test, whereas those of the compositions of Examples 1 and 2 showed a significant increase after the test. The amount of degradation products was only a slight increase of 7 to 8 mg / l, and it was confirmed that each of the compositions according to Examples 1 and 2 was effective in suppressing degradation. The invention's effect
  • composition of the present invention contains trehalose, oxidation of the base can be effectively suppressed, and metal corrosion inhibitory properties and low electrical conductivity can be maintained for a long period of time.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Fuel Cell (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

Une composition d'un support de chauffage, caractérisée par le fait qu'elle est composée d'un matériau de base et d'un trehasole qui y est incorporé, dans le but d'inhiber l'oxydation du matériau de base. La composition du support de chauffage peut être appliquée à un système de refroidissement d'un moteur de combustion interne, un système de chauffage au sol, un système solaire, un système de climatisation ou un système de refroidissement d'une pile à combustible. Il peut empêcher efficacement l'oxydation du matériau de base, ce qui lui permet de conserver ses caractéristiques anti-corrosion et une faible électroconductivité pour une longue période de temps d’après.
PCT/JP2004/004569 2004-03-30 2004-03-30 Composition de support de chauffage WO2005103193A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2004/004569 WO2005103193A1 (fr) 2004-03-30 2004-03-30 Composition de support de chauffage
JP2006512428A JP4785734B2 (ja) 2004-03-30 2004-03-30 熱媒体組成物

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/004569 WO2005103193A1 (fr) 2004-03-30 2004-03-30 Composition de support de chauffage

Publications (1)

Publication Number Publication Date
WO2005103193A1 true WO2005103193A1 (fr) 2005-11-03

Family

ID=35196958

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2004/004569 WO2005103193A1 (fr) 2004-03-30 2004-03-30 Composition de support de chauffage

Country Status (2)

Country Link
JP (1) JP4785734B2 (fr)
WO (1) WO2005103193A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009145642A1 (fr) * 2008-05-27 2009-12-03 Corcel Ip Limited Procédé de formation de carton ondulé à face unique
KR20190083522A (ko) 2018-01-04 2019-07-12 우석대학교 산학협력단 장수명 태양열 열매체 조성물
KR20220077416A (ko) * 2020-12-02 2022-06-09 김은영 잠열 성질을 포함한 열매체

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1046134A (ja) * 1996-08-02 1998-02-17 Nippon Chem Kogyo Kk 不凍液組成物
EP0868916A2 (fr) * 1997-03-04 1998-10-07 Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo Agent-inhibiteur de la réduction pour l'activité d'élimination d'oxygène actif
JP2000192024A (ja) * 1998-12-26 2000-07-11 Koichi Hara 不凍液及び蓄冷液
JP2002119386A (ja) * 2000-10-13 2002-04-23 Darumakkusu:Kk 敷き蒲団及び掛け蒲団並びにそれらを組み合わせた蒲団セット
JP2004039560A (ja) * 2002-07-05 2004-02-05 Nissan Motor Co Ltd 燃料電池システム

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0221572A (ja) * 1988-07-08 1990-01-24 Tokyo Electric Power Co Inc:The 燃料電池水冷却系の高温浄化システム
JPH11263795A (ja) * 1997-03-04 1999-09-28 Hayashibara Biochem Lab Inc 活性酸素消去能低減抑制剤
JP4842420B2 (ja) * 1999-09-28 2011-12-21 トヨタ自動車株式会社 冷却液、冷却液の封入方法および冷却システム
JPWO2003094271A1 (ja) * 2002-05-02 2005-09-08 シーシーアイ株式会社 燃料電池用冷却液組成物

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1046134A (ja) * 1996-08-02 1998-02-17 Nippon Chem Kogyo Kk 不凍液組成物
EP0868916A2 (fr) * 1997-03-04 1998-10-07 Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo Agent-inhibiteur de la réduction pour l'activité d'élimination d'oxygène actif
JP2000192024A (ja) * 1998-12-26 2000-07-11 Koichi Hara 不凍液及び蓄冷液
JP2002119386A (ja) * 2000-10-13 2002-04-23 Darumakkusu:Kk 敷き蒲団及び掛け蒲団並びにそれらを組み合わせた蒲団セット
JP2004039560A (ja) * 2002-07-05 2004-02-05 Nissan Motor Co Ltd 燃料電池システム

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009145642A1 (fr) * 2008-05-27 2009-12-03 Corcel Ip Limited Procédé de formation de carton ondulé à face unique
JP2014080030A (ja) * 2008-05-27 2014-05-08 Corcel Ip Ltd 片面段ボールを形成する方法
US9539790B2 (en) 2008-05-27 2017-01-10 Corcel Ip Limited Method of forming single face corrugated board
US9555599B2 (en) 2008-05-27 2017-01-31 Corcel Ip Limited Method of forming single face corrugated board
KR20190083522A (ko) 2018-01-04 2019-07-12 우석대학교 산학협력단 장수명 태양열 열매체 조성물
KR20220077416A (ko) * 2020-12-02 2022-06-09 김은영 잠열 성질을 포함한 열매체
KR102527818B1 (ko) * 2020-12-02 2023-04-28 김은영 잠열 성질을 포함한 열매체

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Publication number Publication date
JPWO2005103193A1 (ja) 2008-03-13
JP4785734B2 (ja) 2011-10-05

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