WO2009072923A1 - Procédé de génération d'énergie thermique - Google Patents

Procédé de génération d'énergie thermique Download PDF

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Publication number
WO2009072923A1
WO2009072923A1 PCT/RU2008/000447 RU2008000447W WO2009072923A1 WO 2009072923 A1 WO2009072923 A1 WO 2009072923A1 RU 2008000447 W RU2008000447 W RU 2008000447W WO 2009072923 A1 WO2009072923 A1 WO 2009072923A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
silica gel
thermal energy
chemical reaction
calcium oxide
Prior art date
Application number
PCT/RU2008/000447
Other languages
English (en)
Russian (ru)
Inventor
Vasily Aleksandrovich Bargan
Petr Aleksandrovich Bargan
Aleksandr Viktorovich Peisakhov
Dmitry Evgenyevich Kashin
Original Assignee
Obshchestvo S Ogranichennoy Otvetstvennostyu 'bargan Production Group'
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 Obshchestvo S Ogranichennoy Otvetstvennostyu 'bargan Production Group' filed Critical Obshchestvo S Ogranichennoy Otvetstvennostyu 'bargan Production Group'
Publication of WO2009072923A1 publication Critical patent/WO2009072923A1/fr

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Classifications

    • 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
    • C09K5/16—Materials undergoing chemical reactions when used
    • C09K5/18—Non-reversible chemical reactions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
    • F24V30/00—Apparatus or devices using heat produced by exothermal chemical reactions other than combustion

Definitions

  • the invention relates to methods for producing thermal energy based on exothermic chemical reactions, preferably for heating food products before use.
  • SUBSTITUTE SHEET (RULE 26)
  • a method for generating thermal energy involves initiating an exothermic chemical reaction by feeding a reagent in a liquid state to a mixture of (powder) reactants in a solid state, wherein a one percent aqueous ethylene glycol solution is used as a reagent in a liquid state, and solid state - a mixture of calcium oxide with calcium chloride, taken in a ratio of 10: 1.
  • This method allows to eliminate the disadvantage noted above, namely, to increase the time of heat energy release (the duration of the thermal module). This is ensured, firstly, by reducing the time required for the temperature of the exothermic chemical reaction to reach the set value, due to the introduction of an additional reagent - calcium chloride, which immediately enters into the exothermic chemical reaction in contact with water, and secondly, by slowing down the pace reactions between calcium oxide and water, due to an increase in the viscosity of the reagent in the liquid state.
  • thermal energy lies in the fact that the kinetics of an exothermic chemical reaction is greatly influenced by the parameters of the means used in the implementation of this method designed to mix the powder or granules of calcium oxide with the powder or granules of the used crystalline hydrate.
  • the means intended for mixing calcium oxide with crystalline hydrate have a rather complicated structure, which significantly limits the scope of the method, and the low rate of reaction between calcium oxide and water at the initial stage leads to a decrease in the efficiency of use of thermal energy released as a result of the exothermic chemical reaction .
  • the present invention is aimed at solving the technical problem of simplifying the technical implementation of the method for producing thermal energy while increasing the reproducibility of the temperature-temperature parameters of the exothermic chemical reaction between calcium oxide and water, as well as improving the efficiency of using the released thermal energy.
  • the initiation of an exothermic chemical reaction is carried out between the initial components, respectively, in solid and liquid states, by supplying the components in one aggregate state to the components in other aggregate state, while, as a component in the liquid state, water or a 3-32% aqueous solution of hydrogen peroxide is used, and as a component in solid
  • SUBSTITUTE SHEET (RULE 26) state use calcium oxide and anhydrous silica gel in the form of a mixture thereof, and: the amount of silica gel is determined in accordance with the ratio: where Ki is the amount of silica gel [g], K 2 is the amount of water or an aqueous solution of hydrogen peroxide, [g].
  • the proposed method for producing thermal energy allows to increase the time for the release of thermal energy during the exothermic chemical reaction between calcium oxide and water by slowing its rate.
  • FIG. Figure 2 shows the dependence of ⁇ t [s] on the percentage of hydrogen peroxide (H 2 O 2 ), where ⁇ t is the increase in the duration of maintaining the reaction temperature at a level exceeding 100 0 C compared with the same duration obtained when using water as a component in liquid condition.
  • high-purity anhydrous silica gel was used, with an impurity content (iron, aluminum, sodium) of 10 "3 wt.%, With a sorption capacity of 0.8-1.2 mmol equiv / g and with a particle size of 100-1500 microns, the experimental results did not depend on the size of the silica gel granules.
  • the proposed method is as follows.
  • the initiation of an exothermic chemical reaction is carried out by feeding the starting components in one state of aggregation to the starting components in another state of aggregation, namely, either a liquid (water or a 3-32% aqueous solution of hydrogen peroxide)
  • SUBSTITUTE SHEET (RULE 26) fed to ⁇ a mixture of powder or granular component in a solid state (calcium oxide and anhydrous silica) using means such as those described in Patents US-A - N24773389, 1988, RU-A - JCH2144163, 1996, in the application GB-A - JTs 2089970, 1982), or a mixture of powdered or granular components (calcium oxide and anhydrous silica gel) is fed into water or a 3-32% aqueous solution of hydrogen peroxide, for example, using the means described in US-A patent - JBb3970068, 1976, FIG. . eleven).
  • SUBSTITUTE SHEET (RULE 26) faster breakdown of the reaction process.
  • a different picture occurs when using anhydrous silica gel.
  • excess water (within the above limits) practically (within the limits of the error of temperature measurement) does not affect the temperature-time parameters of the reaction process.
  • a further increase in the amount of excess water leads to a decrease in both the maximum achievable temperature and the duration of maintaining the temperature at a level exceeding 100 0 C.
  • a 3-32% aqueous solution of hydrogen peroxide is used as an alternative component in a liquid state.
  • a 3-32% aqueous solution of hydrogen peroxide allows (depending on the content of H 2 O 2 ) to increase from 2 minutes up to 6 minutes the duration of maintaining the temperature at a level
  • SUBSTITUTE SHEET (RULE 26) in excess of 100 ° C compared with the same duration obtained when used as a component in the liquid state of water.
  • the time required to reach 100 0 C is reduced by 4-7 sec. Otherwise, the temperature-time dependences have the same features as were noted above in the analysis of the dependences shown in FIG. 1. This allows us to conclude that all of the above (regarding processes that occur during an exothermic chemical reaction) is also true when 3-32% aqueous solution of hydrogen peroxide is used instead of water, and the increase in the duration of maintaining the temperature at a level exceeding 100 0 C, due to oxygen released during the decomposition of hydrogen peroxide.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)

Abstract

L'invention concerne des procédés basés sur des réactions chimiques exothermiques et destinés à produire de l'énergie thermique. L'utilisation de l'objet de la présente invention permet de simplifier la réalisation technique du procédé et en même temps augmenter la reproductibilité des résultats et d'augmenter l'efficacité d'utilisation de l'énergie thermique dégagée. Le procédé de génération d'énergie thermique consiste à initier une réaction chimique exothermique entre les composants de base qui sont, respectivement, dans des états solide et liquide, en amenant des composants dans l'un des états de la matière jusqu'aux composants dans un autre état de la matière. On utilise en tant que composant à l'état liquide de l'eau ou un mélange 3 +/-32 % de peroxyde d'hydrogène, et en tant que composant à l'état solide on utilise un oxyde de calcium ou un gel de cilice déshydraté sous forme de mélange, la quantité de gel de silice étant déterminée selon la formule K1=(0.9÷1.3)K2, dans laquelle K1 est la quantité de gel de silice, en g, et K2 est la quantité d'eau ou de solution aqueuse de peroxyde d'hydrogène.
PCT/RU2008/000447 2007-12-03 2008-07-09 Procédé de génération d'énergie thermique WO2009072923A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2007144519/12A RU2351626C1 (ru) 2007-12-03 2007-12-03 Способ получения тепловой энергии
RU2007144519 2007-12-03

Publications (1)

Publication Number Publication Date
WO2009072923A1 true WO2009072923A1 (fr) 2009-06-11

Family

ID=40717932

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2008/000447 WO2009072923A1 (fr) 2007-12-03 2008-07-09 Procédé de génération d'énergie thermique

Country Status (2)

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RU (1) RU2351626C1 (fr)
WO (1) WO2009072923A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4338098A (en) * 1979-04-03 1982-07-06 Teitin Limited Solid heat-generating composition
FR2652494A1 (fr) * 1989-08-16 1991-04-05 Thomas Raymond Un dispositif auto-chauffant d'une boite de conserve alimentaire par fusion ultra-instantanee.
JPH04331281A (ja) * 1991-01-25 1992-11-19 Kobe Steel Ltd 容器発熱体
US5552075A (en) * 1994-04-15 1996-09-03 Phase Change Laboratories, Inc. Compositions for thermal energy storage or thermal energy generation
RU2141920C1 (ru) * 1999-01-21 1999-11-27 Аверьков Сергей Яковлевич Герметичный контейнер для хранения и разогрева пищевых продуктов с использованием экзотермического процесса

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4338098A (en) * 1979-04-03 1982-07-06 Teitin Limited Solid heat-generating composition
FR2652494A1 (fr) * 1989-08-16 1991-04-05 Thomas Raymond Un dispositif auto-chauffant d'une boite de conserve alimentaire par fusion ultra-instantanee.
JPH04331281A (ja) * 1991-01-25 1992-11-19 Kobe Steel Ltd 容器発熱体
US5552075A (en) * 1994-04-15 1996-09-03 Phase Change Laboratories, Inc. Compositions for thermal energy storage or thermal energy generation
RU2141920C1 (ru) * 1999-01-21 1999-11-27 Аверьков Сергей Яковлевич Герметичный контейнер для хранения и разогрева пищевых продуктов с использованием экзотермического процесса

Also Published As

Publication number Publication date
RU2351626C1 (ru) 2009-04-10

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