JP2011162746A - Molded article of chemical heat storage material and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a molded article of a chemical heat storage material with hardly reducing reactivity even when repeatedly used. <P>SOLUTION: The molded article 17 of a chemical heat storage material in which particles 15 of the chemical heat storage material are carried in a porous body 14 formed by heating a resin is provided. The particles 15 of the chemical heat storage material preferably have a 0.1-1,000 μm average particle size and the content of the same is 30-85 wt.%. The porous body 14 is the resin and/or a carbide. The particles 15 of the chemical heat storage material are a compound of calcium or magnesium. The molded article 17 of the chemical heat storage material is produced by a method for producing the molded article 17 of the chemical heat storage material comprising a preparation step for preparing a mixed material by mixing the particles 15 of the chemical heat storage material with the resin and a heat processing step for forming the porous material 14 of the resin by heating the mixed material. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a chemical heat storage material molded body including a chemical heat storage material and a method for producing the same.

  A chemical heat storage material is used in a chemical heat storage system represented by a chemical heat pump effective in using heat energy.

  A chemical heat storage material in which a heat release chemical reaction and an endothermic chemical reaction occur reversibly has an advantage that it can be recycled. However, the conventional method using a fine powder heat storage material has a problem that if the heat storage material itself is used a plurality of times, the heat storage material itself tends to solidify and the like, and further recycling is difficult.

  Various techniques for solving the above problems have been proposed. For example, after heating crystalline limestone having a particle size of 0.3 mm to 4 mm within a range of 850 ° C. to 1100 ° C. for a predetermined time, the limestone is heated within a range of 500 ° C. to 600 ° C. for a predetermined time, A technique for obtaining quicklime in which a large number of pores from the inside toward the inside are formed is disclosed (for example, see Patent Document 1).

  Moreover, the technique which fills the reactor or reaction tower with the capsule which accommodated the powder chemical thermal storage material in the ratio of 10-60 volume% of internal space is known (for example, refer patent document 2, patent document 3). . In addition, the primary particles obtained by primary molding of the chemical heat storage material in powder form are mixed with clay minerals, and the molded body obtained by secondary molding is fired to obtain a chemical heat storage material in which a gap is formed between the chemical heat storage materials. A technique is known (for example, see Patent Document 4).

  Furthermore, by using chemical heat storage that uses the engine heat of the vehicle as a reaction heat, a large amount of heat storage is obtained compared to the amount of heat stored by sensible heat storage without requiring a large space and weight, so that advanced use of vehicle heat energy can be achieved. A technology of a chemical heat storage system for vehicles that can be achieved is known (for example, see Patent Document 5).

Japanese Patent No. 2539480 Japanese Patent Publication No. 6-80394 Japanese Patent Publication No. 6-80395 JP 2009-132844 A JP 2009-57933 A

  However, as described in Patent Document 1, if pores are formed in the chemical heat storage material itself that repeats expansion and contraction of the volume by repeating the hydration reaction and dehydration reaction, it is easy to pulverize and react as a heat storage system. There was a problem that the property was easily lowered.

  In addition, in the configurations of Patent Documents 2 and 3, due to the increase in heat conduction resistance due to the use of capsules and the complexity of the heat transfer path, heat due to the heat dissipation reaction of the chemical heat storage material cannot be taken out efficiently, and further in the heat storage reaction There was a problem that heat could not be supplied efficiently. Further, in the configuration of Patent Document 4, the clay mineral is cemented and solidified while the hydration reaction and the dehydration reaction are repeated, which causes a decrease in reactivity as a heat storage system.

  Furthermore, as described in Patent Document 5, a system for highly utilized vehicle waste heat requires a reaction material that can withstand chemical heat storage that can withstand repeated use. However, with a chemical heat storage material alone, volume expansion / contraction Repeatedly, there was a problem that the chemical heat storage material collapsed / aggregated and the reaction function was lowered.

  An object of this invention is to provide the chemical heat storage material molded object which a reactivity is hard to fall even if it uses repeatedly, and its manufacturing method.

  The present invention is a chemical heat storage material molded body in which chemical heat storage material particles are supported on a porous body formed by heating a resin. The chemical heat storage material particles preferably have an average particle size of 0.1 to 1000 μm. In the chemical heat storage material molded body of the present invention, the content of the chemical heat storage material particles is preferably 30 to 85% by weight.

  In the present invention, the porous body is a resin and / or a carbide. It is preferable that the porous body has a large number of through holes that randomly penetrate in three dimensions, and the chemical heat storage material particles are exposed in the through holes. The chemical heat storage material particles are preferably a calcium or magnesium compound.

  Furthermore, the present invention is a method for producing the chemical heat storage material molded body, wherein a preparation step of preparing a mixed material by mixing chemical heat storage material particles and a resin, and heating the mixed material to make the porous resin A heat treatment step for forming a body.

  In the preparation step, the mixed material is preferably prepared by further mixing a pore-forming material.

  The chemical heat storage material molded body of the present invention can prevent the chemical heat storage material particles from collapsing and agglomerating even if the reaction medium gas, water vapor, is repeatedly hydrated and dehydrated. In addition, the heat storage and release function can be maintained even after repeated use.

It is typical sectional drawing of the chemical heat storage material molded object of this embodiment. It is a schematic diagram which shows schematic structure of a thermal storage thermal radiation experiment apparatus. It is a figure which shows the temperature measurement result in a thermal storage thermal radiation experiment. It is a figure which shows the result of the highest attained temperature in a thermal storage heat radiation experiment. It is a figure which shows the SEM photograph of the calcium hydroxide simple substance before a heat storage exothermic reaction. It is a figure which shows the SEM photograph of the calcium hydroxide simple substance after passing through the thermal radiation process 5 times. It is a figure which shows the SEM photograph of the sample 2 which concerns on this invention before heat storage thermal radiation reaction. It is a figure which shows the SEM photograph of the sample 2 which concerns on this invention after passing through a thermal radiation process 5 times.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.
(Chemical heat storage material molding)
FIG. 1 is a schematic cross-sectional view of a chemical heat storage material molded body of the present embodiment. As shown in FIG. 1, the chemical heat storage material molded body 17 has a large number of chemical heat storage material particles 15 supported on a porous body 14 formed by heating a resin. A large number of pores 16 are formed in the porous body 14.

As the chemical heat storage material particles 15, for example, calcium hydroxide (Ca (OH) ₂ ) is used. Calcium hydroxide stores heat (absorbs heat) with dehydration and dissipates heat with hydration (restoration to calcium hydroxide). That is, the calcium hydroxide which is the chemical heat storage material particle 15 can reversibly repeat heat storage and heat release by the reaction shown in the formula (1).

Ca (OH) ₂ Ｃａ CaO + H ₂ O Formula (1)
When the heat storage amount Q or the heat release amount Q is shown together with the equation (1), the reactions shown in the equations (2) and (3) are obtained.

Ca (OH) ₂ + Q → CaO + H ₂ O Formula (2)
CaO + H ₂ O → Ca (OH) ₂ + Q Formula (3)
Since the chemical heat storage material particles 15 are supported on the porous body 14, even if the heat storage heat release reaction is repeated, the chemical heat storage material particles 15 can be prevented from collapsing / aggregating and can be used repeatedly for the heat storage heat release reaction.

  The pore 16 discharges a gas as a reaction product (water vapor in the formula (2)) during the heat storage of the chemical heat storage material particles 15, and a gas as a reactant during the heat release (in the formula (3)). It functions as a flow path for supplying water vapor. Therefore, from the viewpoint of reaction efficiency, it is preferable that the chemical heat storage material particles 15 are randomly dispersed and held in the porous body 14 so that the surface of the chemical heat storage material particles 15 is exposed in the pores 16. The structure by which it hold | maintains is preferable, and the through-hole which the pore 16 penetrates the chemical heat storage material molded object 17 at random in three dimensions is preferable.

  The porous body 14 is formed by heating a resin. For example, the porous body 14 formed by heating resin and thermally decomposing part or all is carbonized. In this case, the porous body 14 can be formed by adjusting the resin material or heating conditions, or by heating the resin material together with the pore forming material. Or the porous body 14 formed by heating resin which consists of many resin particles and fuse | melting each particle | grains is illustrated. The porous body 14 formed by heating and carbonizing the resin does not change due to heating in the heat storage reaction, and is suitable for repeatedly using the chemical heat storage material molded body 17.

  The chemical heat storage material particles 15 preferably have an average particle diameter of 0.1 to 1000 μm, more preferably 0.5 to 500 μm, and most preferably 1 to 100 μm. When the average particle diameter of the chemical heat storage material particles 15 is less than 0.1 μm, the pulverization classification cost becomes large and it is not economical, and it becomes difficult to disperse the porous heat in the porous body 14. Moreover, when the average particle diameter of the chemical heat storage material particles 15 exceeds 1000 μm, particle collapse / aggregation becomes prominent during the heat storage and heat release reaction, and the heat storage and heat release function may be lowered and repeated use may be difficult. The average particle diameter of the chemical heat storage material particles in this specification is the cumulative frequency of the frequency distribution obtained by the measurement method using a laser diffraction / scattering type measuring device, that is, the laser diffraction / scattering method (microtrack method). It means 50% value. As a laser diffraction / scattering type particle size measuring device, for example, Microtrack MT3000 manufactured by Nikkiso Co., Ltd. can be used.

  The chemical heat storage material particles 15 preferably have a content of 30 to 85% by weight based on the entire chemical heat storage material molded body 17. If it is less than 30% by weight, a sufficient heat storage and heat dissipation capability cannot be obtained, and the ratio of being buried in the porous body 14 increases, resulting in a decrease in heat storage and heat dissipation efficiency. If it exceeds 85% by weight, the proportion of the porous body 14 is decreased, and the chemical heat storage material particles 15 are likely to collapse / aggregate in association with the heat storage heat release reaction. Absent. In addition, the content of the chemical heat storage material particles in the present specification is a value measured by performing a quantitative analysis by a fluorescent X-ray analysis method. As a fluorescent X-ray analysis measurement device, for example, ZSX100e manufactured by Rigaku Corporation can be used.

The chemical heat storage material particles 15 are different in a state before heat storage after heat dissipation (for example, Ca (OH) ₂ in formula (1)) and a state before heat dissipation after heat storage (for example, CaO in formula (1)). The average particle size and content of the chemical heat storage material particles 15 in the book refer to the average particle size and content in the state after heat dissipation and before heat storage.

  As the chemical heat storage material particles 15, calcium hydroxide is preferably used. Calcium hydroxide is highly reversible and can provide a stable heat storage effect over a long period of time. Further, since calcium hydroxide has low sensitivity to impurities, it can be stably used for a long time in this respect. In addition, magnesium hydroxide is preferably used. Since these calcium and magnesium compounds are alkaline earth metal compounds, they are materials with a small environmental load, and it is easy to ensure safety including manufacture, use, and recycling of the chemical heat storage material molded body 17. . In addition, the average particle diameter can be made relatively easy, which is suitable for obtaining particles having a desired particle diameter. The chemical heat storage material molded body 17 using calcium hydroxide and magnesium hydroxide as a chemical heat storage material can be used as a heat storage material at 100 to 400 ° C. In addition, although water vapor | steam was shown as a reaction material which reacts with the chemical thermal storage material particle | grains 15 in the above, even if it uses ethanol, a thermal storage thermal radiation reaction can be produced similarly.

  Examples of the resin used for forming the porous body 14 include thermosetting resins such as phenol resin, melamine resin, urea resin, epoxy resin, furan resin, polyamide resin, polyester resin, polyethylene resin, polypropylene resin, One kind or two or more kinds of thermoplastic resins such as polystyrene resin, acrylic resin, vinyl chloride resin, fluorine resin, polyacetal resin, polycarbonate resin, polyurethane resin, and polyvinyl alcohol resin can be mixed and used.

  The shape of the chemical heat storage material molded body 17 is not particularly limited, and examples thereof include a cylinder, a cylinder, a block, a beret, and a granule. The pellet and granule shapes can be easily filled into the reactor, and are highly convenient from the viewpoint of handling.

(Method for producing chemical heat storage material molding)
The method for producing a chemical heat storage material molded body according to the present invention includes a mixing step in which chemical heat storage material particles and a resin are mixed to prepare a mixed material, and a heat treatment in which the mixed material is heated to form a porous resin body. Process. In the mixing step, for example, the resin is dissolved in water or a solvent to form a liquid, and then the chemical heat storage material particles are mixed. Preferably, a pore forming material is also mixed. In the heat treatment process, the mixed material molded into a predetermined shape is heated, and, for example, by thermally decomposing the resin, a chemical heat storage material molded body in which the chemical heat storage material particles are supported on the porous body made of carbon is manufactured. . What is necessary is just to select the heating temperature in a heat processing process suitably according to resin to be used and a pore formation material, for example, it can heat at the temperature of 500-1000 degreeC. In the heat treatment step, the resin is not limited to carbonization, and a porous body made of a resin or a material partially carbonized with the resin may be formed.

  As the pore forming material, a material that promotes the formation of pores in the resin is used. A material that decomposes with the heating of the mixed material and in which the space occupied by the pore-forming material in the mixed material becomes pores in the chemical heat storage material molded body is preferably used. The pore-forming material is not particularly limited, but starch derived from potato and corn is preferably used. When starch is used as the pore-forming material, the pores can also be formed by a method in which the chemical heat storage material molded body is immersed in warm water to elute and remove the starch.

  As the resin, any of a thermosetting resin and a thermoplastic resin can be used as described above. For example, using a powdery initial condensate of a thermosetting resin, a predetermined amount of pore-forming material and chemical heat storage material particles are mixed to prepare a mixed material, and then the mixed material is heated to cure the resin. A chemical heat storage material molded body in which the heat storage material particles are supported on the porous body can be manufactured.

  In addition, for example, using a powdered or pelleted thermoplastic resin, a predetermined amount of pore forming material and chemical heat storage material particles are mixed to prepare a mixed material, and heated to a temperature above the softening point of the thermoplastic resin. By doing so, a chemical heat storage material molded body in which the chemical heat storage material particles are supported on the porous body can be manufactured.

  Moreover, when using polyvinyl alcohol resin, after melt | dissolving polyvinyl alcohol with warm water and making it aqueous solution of predetermined density | concentration, a pore formation material and a chemical heat storage material particle are mixed, and it shape | molds and heats, and heats it. A chemical heat storage material molded body in which particles are supported on a porous body can be produced. When a polyvinyl alcohol resin is used, a porous body made of a polyvinyl acetal resin such as polyvinyl formal or polyvinyl benzal is added by adding an aldehyde that becomes a crosslinking agent of polyvinyl alcohol and an acid catalyst in the step of preparing the mixed material. Can also be formed.

  In the case of using any resin, in the heat treatment step, the resin may be heated so that all of the resin is carbonized, may be heated so that a part of the resin is carbonized, or the resin is not carbonized. You may heat to.

  The chemical heat storage material molded body of the present invention can be used as a heat storage material for a chemical heat pump in a cooling / heating system using exhaust heat, heating using automobile engine heat, an engine heat retention system, and the like.

  EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited to these.

(Production example)
<Samples 1-5>
Water was added to polyvinyl alcohol having a polymerization degree of 1700 and a saponification degree of 99% and dissolved by heating to obtain a 20% by weight polyvinyl alcohol aqueous solution (PVA water). Calcium hydroxide with an average particle size of 100 μm and PVA water are mixed, and thermosetting phenol resin (Bellpearl (registered trademark) S830 manufactured by Air Water), 0.1 N formaldehyde nitrate solution and corn starch starch are mixed and mixed. The material was prepared. Then, the mixed material was put into an extrusion granulator (EXDS-60 type manufactured by Dalton Co.) to obtain pellets having a diameter of 2 mm and a length of 10 mm. The mixing ratio of each material was as shown in Table 1.

The pellets were put in a muffle furnace, heated to 700 ° C. at a temperature rising rate of 50 ° C./hour in a nitrogen atmosphere, and then held at 700 ° C. for 1 hour to cool, thereby forming a chemical heat storage material molded body of samples 1 to 5 Got. The content of Ca (OH) _{2 in} Samples 1 to 5 was measured by quantitative analysis using a fluorescent X-ray analyzer (ZSX100e manufactured by Rigaku Corporation). Table 1 shows the measured values.

<Sample 6>
A chemical heat storage material molded body of Sample 6 was obtained in the same manner as Samples 1 to 5 except that calcium hydroxide having an average particle diameter of 2000 μm was used and the pellet size was 5 mm in diameter and 10 mm in length. . The mixing ratio of each material was as shown in Table 1. The content of Ca (OH) ₂ was measured by quantitative analysis using a fluorescent X-ray analyzer (ZSX100e manufactured by Rigaku Corporation). Table 1 shows the measured values.

<Sample 7>
Calcium hydroxide having an average particle size of 0.05 μm was used. After mixing each material with the mixing ratio shown in Table 1, an attempt was made to produce pellets having a diameter of 2 mm and a length of 10 mm using an extrusion granulator (EXDF-60 type manufactured by Dalton). I couldn't. Therefore, the viscous mixture was passed through a sieve so as to have a particle size of about 2 mm to obtain a granular molded product. This granular molded product is put into a muffle furnace, heated to 700 ° C. at a temperature rising rate of 50 ° C./hour in a nitrogen atmosphere, and then cooled by holding at 700 ° C. for 1 hour to form a chemical heat storage material for sample 7. Got the body. The content of Ca (OH) _{2 in} the sample 7 was measured by quantitative analysis using a fluorescent X-ray analyzer (ZSX100e manufactured by Rigaku Corporation). Table 1 shows the measured values.

(Heat storage / radiation experiment)
FIG. 2 is a schematic diagram showing a schematic configuration of the heat storage and heat radiation experiment apparatus used in this experiment. The heat storage heat radiation experiment apparatus 18 includes a reactor 1 for charging the heat storage material 3, an evaporator / condenser 2 for charging the reactant 4, an electric furnace 7 for heating the heat storage material 3 in the reactor 1, and an evaporator / condenser 2 A constant temperature bath 8 that keeps the temperature of the reactor constant, a mantle heater 12 attached to the evaporator / condenser 2, a pressure gauge 9 that measures the pressure in the reactor 1, and a vacuum pump 10 that sucks moisture in the reactor 1, The pipe 5 and the valves 6, 11 and 13 provided on the connecting pipe 5 are provided. The connection pipe 5 connects the reactor 1, the evaporator / condenser 2, the vacuum pump 10, and the outside.

  The following experiment was conducted using the heat storage and heat radiation experiment apparatus 18 shown in FIG. First, in order to initialize the heat storage material 3 by performing a desorption process of moisture initially contained in the heat storage material 3, the reactor 1 is filled with the heat storage material 3, the valves 6 and 13 are closed, and the electric furnace 7 The temperature inside the reactor 1 was set to 500 ° C., the valve 11 was opened, and vacuum deaeration was performed with the vacuum pump 10 for 4 hours. Next, after the valve 11 was closed and it was confirmed that the temperature in the reactor 1 had returned to room temperature, the temperature in the reactor 1 was set to 60 ° C. by the electric furnace 7, and the material to be reacted (water) 4 entered. The evaporator / condenser 2 is heated to 60 ° C. by the mantle heater 12, then the valve 6 is opened, water vapor is introduced from the evaporator / condenser 2 into the reactor 1 through the connecting pipe 5, and the heat storage material 3 is It was made to react and used for the heat dissipation process. And the temperature of the thermal storage material 3 until 1 hour passed immediately after reaction start was measured. When 1 hour has passed immediately after the start of the reaction, the heat release process is terminated, the valve 6 is closed, the reactor 1 is heated in the electric furnace 7 to set the temperature in the reactor 1 to 500 ° C., and the heat storage material 3 Played. In this heat storage process, the valve 11 was opened and the water hydrated in the heat storage material 3 was sufficiently desorbed in vacuum. In the heat storage step, the temperature in the evaporator / condenser 2 was 20 ° C., and the reaction time was 4 hours. When the heat storage process was completed, the heat release process was performed again.

  As the heat storage material 3, samples 1 to 7, which are the chemical heat storage material molded bodies of the present invention, and calcium hydroxide alone (average particle diameter: 500 μm) were used. Regardless of which heat storage material 3 is used, the heat storage material 3 charged in the reactor 1 has the same weight. FIG. 3 shows the temperature measurement result of the third heat release step and the temperature measurement result of the fifth heat release step when the sample 2 and calcium hydroxide alone are used. The temperature is expressed as a temperature rise from the temperature immediately after the start of the reaction.

As shown in FIG. 3, when the sample 2 was used as the heat storage material 3, the temperature of the sample 2 rapidly increased to about 300 ° C. immediately after the start of the reaction in the third heat release step. Even in the fifth heat dissipation step, the maximum temperature reached about 160 ° C. On the other hand, the maximum temperature achieved when calcium hydroxide alone was used as the heat storage material 3 was about 200 ° C. in the third heat dissipation step and about 120 ° C. in the fifth heat release step. As described above, when the two heat storage materials are compared, there is a difference in the maximum temperature reached after repeating the heat storage heat release reaction. Furthermore, considering that sample 2 has a Ca (OH) ₂ content of about 40% by weight, the sample 2 generates sufficient heat dissipation as compared with a simple substance having a Ca (OH) ₂ content of 100% by weight. I understand that.

  FIG. 4 shows the maximum temperature reached when the heat storage heat release reaction is repeated for each heat storage material 3. In Sample 2, Sample 3 and Sample 4, it was found that the reactivity was maintained even after the 15th heat release step, while calcium hydroxide alone decreased the reactivity from the beginning of the heat storage heat release reaction, and was remarkable from the 5th heat release step. It can be seen that the reactivity decreased. In Sample 1 having a calcium hydroxide content ratio of 16% by weight, the rate of decrease in reactivity when the heat storage and heat release reaction is repeated is low, but the amount of the chemical heat storage material that contributes to the heat storage and heat release reaction is small. Therefore, it can be seen that it is difficult to obtain a sufficient calorific value. In Sample 5 having a calcium hydroxide content ratio of 93% by weight, an effective reaction effect is obtained without reducing the reactivity at the initial stage of the repeated heat storage and heat release reaction. It turns out that the property has fallen. Further, in the sample 6 having a calcium hydroxide particle size of 2000 μm, the reactivity is maintained until the sixth heat dissipation step, but the reactivity is lowered thereafter. Moreover, in the sample 7 having a particle size of the chemical heat storage material of 0.05 μm, it is difficult to obtain a large calorific value although it is difficult for the reactivity to decrease due to repeated heat storage and heat release reaction.

  FIG. 5 shows a SEM photograph of the calcium hydroxide alone before the heat storage exothermic reaction, and FIG. 6 shows a SEM photograph of the calcium hydroxide alone after the heat dissipation process 5 times. FIG. 7 shows an SEM photograph of Sample 2 before the heat storage and heat release reaction, and FIG. 8 shows an SEM photograph of Sample 2 after five heat dissipation steps. From these photographs, it can be seen that the particle size increase due to the aggregation of the heat storage material is recognized repeatedly by itself, whereas the sample 2 according to the present invention does not show a significant increase in particle size. Moreover, in the sample 2, it is recognized that the particle shape of the chemical heat storage material particles is maintained without being collapsed.

  As described above, the chemical heat storage material molded body of the present invention functions as a heat storage material having reactivity and shape stability, and can be used as a heat storage material with little deterioration in performance even when used repeatedly.

  It should be understood that the embodiments and examples disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  1 Reactor, 2 Evaporator / Condenser, 3 Reactant, 4 Reactant, 5 Connection Pipe, 6 Valve, 7 Electric Furnace, 8 Thermostatic Bath, 9 Pressure Gauge, 10 Vacuum Pump, 11 Valve, 12 Mantle Heater, 13 Valve, 14 Porous body, 15 Chemical heat storage material particles, 16 pores, 17 Chemical heat storage material molded body, 18 Thermal storage heat radiation experiment apparatus.

Claims (8)

  A chemical heat storage material molded body in which chemical heat storage material particles are supported on a porous body formed by heating a resin.   The chemical heat storage material molded body according to claim 1, wherein the chemical heat storage material particles have an average particle diameter of 0.1 to 1000 μm.   The chemical heat storage material molded body according to claim 1 or 2, wherein the content of the chemical heat storage material particles is 30 to 85% by weight.   The chemical heat storage material molded body according to any one of claims 1 to 3, wherein the porous body is a resin and / or a carbide.   The chemical heat storage material molded body according to any one of claims 1 to 4, wherein the porous body has a large number of through holes that randomly penetrate in three dimensions, and the chemical heat storage material particles are exposed in the through holes. .   The chemical heat storage material molded body according to any one of claims 1 to 5, wherein the chemical heat storage material particles are a compound of calcium or magnesium. It is a manufacturing method of the chemical heat storage material molded object according to any one of claims 1 to 6,
A preparation process for preparing a mixed material by mixing chemical heat storage material particles and a resin,
And a heat treatment step of forming the porous body of the resin by heating the mixed material.   The chemical heat storage material molded body according to claim 7, wherein in the preparation step, the pore forming material is further mixed to prepare the mixed material.