JPH0657470A - Method and device for oxidation reaction - Google Patents

Abstract

PURPOSE:To ionize oxygen, to pass the ionized oxygen through a solid electrolyte, to convert the ionized oxygen to an active oxygen species and to easily oxidize the reaction substrate. CONSTITUTION:A reactor 4 is divided into an oxygen supply chamber 2 and an oxidation reaction chamber 3 by a solid electrolyte 1 consisting of a fluorite- structure metal oxide such as ZrO2 contg. a solid soln. of Y2O3. Gaseous oxygen is supplied to the chamber 2, and a reaction substrate by a compd. consisting of a gas, a liq. or a fine-powder solid is supplied to the chamber 3. The reactor 4 is heated to 50-700 deg.C to convert the oxygen in the chamber 2 to oxygen ion, the ion is passed through the solid electrolyte 1 and converted to an active oxygen species which is supplied to the chamber 3, hence the reaction substrate in the chamber 3 easily reacts with the species in the absence of catalyst and electrode, and the gaseous, liq. or solid reaction substrate consisting of various compds. is oxidized with this simple device.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a gas phase, a liquid phase,
The present invention relates to a method and an apparatus for performing an oxidation reaction of a substance exhibiting a solid phase. More specifically, it relates to a method and an apparatus for carrying out an oxidation reaction using active oxygen species.

[0002]

2. Description of the Related Art A method of reacting a reaction substrate with oxygen to oxidize it is generally widely used in the presence of a catalyst. But,
The catalyst to be used needs to have a function of activating the reaction substrate and oxygen, and it is necessary to develop a catalyst system having complicated composition components. Moreover, the catalyst system must be set for each desired oxidation reaction. Also, in the oxidation of organic substances,
A variety of oxidation reaction products are obtained, and it is difficult to control the selectivity.

On the other hand, in recent years, a method of carrying out an oxidation reaction using a solid electrolyte having oxygen ion permeability has been proposed. For example, in a method of reacting a reaction substrate with oxygen, an electrode metal film is formed on both surfaces of a solid electrolyte substrate, and a homogeneous catalyst film composed of molybdenum and bismuth oxide is laminated on one surface of the solid catalyst. The exposed surface of the membrane is contacted with propylene, n-butene, isobutene or 2-methyl-1-butene, which is a reaction substrate, and oxygen is brought into contact with the surface of the laminated membrane having no homogeneous catalyst membrane, and the electrode is A voltage is applied between the metal membranes to increase the activity of the homogeneous catalyst membrane by oxygen ions that have permeated the solid electrolyte substrate, and oxygen and the reaction substrate that have permeated the solid electrolyte substrate on the surface of the homogeneous catalyst membrane. Has been reported to obtain a reaction product containing substantially no molecular oxygen (Japanese Patent Publication No. 2-56433).

In addition, the ammonia-containing feed gas is passed through in contact with the first catalyst attached to the first surface of the solid electrolyte,
A second oxygen-containing gas deposited on the second surface of the solid electrolyte;
Passing through contact with a catalyst, the second catalyst dissociating oxygen gas to allow the formation of oxygen ions, and the solid electrolyte transporting oxygen ions into contact with ammonia;
A method for ammonia oxidation reaction characterized by the ability to form nitric oxide has been reported (Japanese Patent Publication No. 64-2).
674).

Gold electrodes are formed on both sides of the solid electrolyte,
A catalyst of LiNiO ₂ was laminated on one surface of the electrode, methane was supplied to the laminated catalyst, oxygen was supplied to the other surface, and a voltage was applied between the electrodes to solidify oxygen ions. A reaction method has been reported in which ethane and ethylene are obtained by oxidative coupling of methane on the catalyst surface while being transported via the electrolyte onto the catalyst surface (Che.
(Mistry Letters, pp.317-318 1988).

Gold electrodes are formed on both sides of the solid electrolyte,
A reaction method has been reported in which oxygen is supplied to one surface and propylene is supplied to the other surface, and oxygen is permeated to the other side by applying a voltage between the electrodes to partially oxidize propylene. Yes (Petrotech Vol.13 No.4
P313-318 1990, J.CHEM.SOC.CHEM.COMMUN pp.961-962
1986).

In all of these methods, a catalyst or an electrode is essential, and it is necessary to use an optimum catalyst system according to the reaction substrate. Moreover, it may be difficult to stack the catalyst membrane on the surface of the solid electrolyte. When the catalyst is deactivated,
The catalyst film must be laminated again, which requires complicated work. Furthermore, there is a problem in that an expensive catalyst is often used, resulting in high cost. With respect to the electrodes, it may be difficult to produce electrodes having sufficient conductivity on the entire surface of the solid electrolyte during production. In addition, depending on the type of electrode, the electrode itself may be oxidized and lose sufficient conductivity. If a voltage needs to be applied between the electrodes, a device for that purpose, that is, a stabilizing power supply for applying a DC voltage, a dry battery, a lead battery, or the like, is required, so that the reaction device system becomes complicated. .

[0008]

Therefore, it is possible to carry out an oxidation reaction in the absence of a catalyst and under the conditions of no electrodes without applying a voltage to the solid electrolyte, that is, the active oxygen species generated through the solid electrolyte as they are. Development of a method of performing an oxidation reaction as a reaction species is desired. The object of the present invention is to solve the above-mentioned problems, which was thought to be impossible in the past, and the active oxygen species generated without applying a voltage to the solid electrolyte were used as the reaction species as they were, under no catalyst and no electrode conditions. It is therefore an object of the present invention to provide an oxidation reaction method capable of performing an oxidation reaction not only in a gas phase but also in a liquid phase or a solid phase. Further, since it is not necessary to apply a voltage, another object of the present invention is to provide an oxidation reaction device which is simpler than the conventional one.

[0009]

The summary of the present invention is as follows.
(1) In a method of performing an oxidation reaction using a solid electrolyte having a property of converting oxygen into oxygen ions, a property of transmitting oxygen ions and a property of converting oxygen ions into active oxygen species, one side of the solid electrolyte is While supplying oxygen directly to the surface and supplying the reaction substrate to the surface on the other side or in the vicinity thereof, after converting oxygen into oxygen ions on the oxygen supply side, the oxygen permeates through the solid electrolyte and the oxygen ions are supplied on the reaction substrate supply side. Oxidation reaction method characterized by oxidizing the reaction substrate with the active oxygen species that are further converted, and (2) properties of converting oxygen into oxygen ions, properties of transmitting oxygen ions and conversion of oxygen ions into active oxygen species A solid electrolyte having the characteristics of: a means for supplying oxygen to the surface of one side of the solid electrolyte; and a reactive group formed by an active oxygen species generated on the other side of the solid electrolyte. There relates oxidation reaction apparatus characterized by being configured to the reaction substrate to be oxidized comprises means for supplying to the surface or the vicinity of the solid electrolyte, it permeated oxygen ions through the solid electrolyte.

First, the oxidation reaction device of the present invention will be described. The solid electrolyte that can be used in the present invention is not particularly limited, but is preferably a metal oxide composed of one kind or two or more kinds, and a crystal structure having a fluorite structure. In the fluorite type structure of the metal oxide, the arrangement of oxygen ions is far from the closest packing, and there is an empty site with eight coordinations of oxygen ions. It is considered that a large amount of lattice defects are likely to occur due to such a loose structure. In other words, it is said that the fluorite structure retains its basic crystal structure even if some heteroatoms enter due to its looseness and various defects occur (Tetsuichi Kudo and Kazuo Fueki, "Solid Eye"). Onyx "Kodansha Scientific published the first print on May 20, 1986). Due to the lattice defect of oxygen ions in the fluorite structure, a property of transmitting oxygen ions is generated.

Examples of the above-mentioned metal oxide having a fluorite structure include cerium oxide, thorium oxide, zirconium oxide, hafnium oxide, bismuth oxide and magnesium oxide, calcium oxide, scandium oxide, yttrium oxide in addition to these metal oxides. Examples include solid solutions of lanthanum oxide, niobium oxide, tungsten oxide, neodymium oxide, samarium oxide, gadnium oxide, erbium oxide, ytterbium oxide, and the like. Among these, zirconium oxide in which yttrium oxide is dissolved in solid solution, zirconium oxide in which calcium oxide is dissolved in solid solution, and cerium oxide in which scandium oxide is dissolved in solid solution are preferably used from the viewpoints of wide application temperature range and easy availability.

The shape of the solid electrolyte is not particularly limited, but may be any shape having a substantially constant thickness such as a plate shape or a tube shape. Further, as long as it has a substantially constant thickness, it is also preferable that the structure is not flat but has an uneven structure and a large surface area so that a reaction field can be efficiently provided. Here, the thickness of the solid electrolyte is usually 1 μm to
It is 5 mm, preferably 10 μm to 2 mm. 1 μm
The thinner one is difficult to manufacture, and there are many holes through which molecular oxygen also permeates, and it is easily cracked due to a sudden temperature change, etc., and there is a problem in strength. On the other hand, if the thickness is greater than 5 mm, good oxygen ion permeability will not be seen. However, the thinner the thickness of the solid electrolyte, the higher the permeability of oxygen ions, and it is possible to generate a sufficient amount of active oxygen species even at lower temperatures, so that the oxidation reaction method of the present invention can be suitably performed. You can Since the mechanical strength decreases as the thickness of the solid electrolyte decreases (for example, 0.1 mm or less), a support made of a porous material (for example, porous alumina, porous zirconia, etc.) with low diffusion resistance of oxygen molecules is used. You may mount and use a solid electrolyte on the surface. Examples of the method for producing the solid electrolyte include, but are not limited to, firing method, plasma spraying, sol-gel method, vacuum deposition, and sputtering.

The solid electrolyte as described above has the property of converting oxygen into oxygen ions, the property of transmitting oxygen ions, and the property of converting oxygen ions into active oxygen species. In the present invention, these properties are solid. It can be expressed without applying a voltage or providing a catalyst on both surfaces of the electrolyte. The oxidation reaction device of the present invention comprises a means for supplying oxygen to the surface of such a solid electrolyte and one side of the solid electrolyte, and a reactive substrate is oxidized by the active oxygen species generated on the other side of the solid electrolyte. Is provided with a means for supplying the reaction substrate to the surface of the solid electrolyte or the vicinity thereof, and is configured so that oxygen ions can permeate through the solid electrolyte.

The means for supplying oxygen include, for example, a method of supplying oxygen or a mixture of oxygen such as air with a high-pressure gas cylinder, a method of supplying with an air pump or an air compressor, or a method of exposing to the atmosphere. However, it is not particularly limited. In the present invention, oxygen gas is directly supplied to one surface of the solid electrolyte by the oxygen supply means, and oxygen is converted into oxygen ions.

As the means for supplying the reaction substrate, for example, a method of previously filling or fixing the reaction substrate in the oxidation reaction, a method of supplying the reaction substrate itself by a pump or a high-pressure gas cylinder, an inert gas (helium) ,
Examples thereof include a method of diluting with nitrogen, etc., or supplying in the form of liquid droplets or solid fine particles. In the present invention, the reaction substrate supplying means allows the reaction solution to be present on the other surface of the solid electrolyte or in the vicinity thereof. There is no particular limitation as long as the reaction substrate is oxidized by the active oxygen species.

The oxidation reaction apparatus of the present invention comprises the above solid electrolyte, oxygen supply means, and reaction substrate supply means, and is constructed so that oxygen ions can permeate through the solid electrolyte.
As a specific method for permeating oxygen ions, any means capable of producing a pressure gradient or a concentration gradient as described below through the solid electrolyte in the presence of the oxygen supply means and the reaction substrate supply means as described above. May be

In the oxidation reaction apparatus of the present invention, it is possible to use a reactor as shown in FIG. 1 for supplying such oxygen and reaction substrate. That is, it is possible to adopt a method of supplying the respective substances to the oxygen supply chamber and the oxidation reaction chamber by using a reactor which is partitioned by the solid electrolyte into the oxygen supply chamber and the oxidation reaction chamber. In addition to such a reactor, for example, a reactor in which the inside or outside of a tubular solid electrolyte is an oxygen supply chamber or an oxidation reaction chamber, and a reactor in which one side of the solid electrolyte is exposed to the atmosphere and is an open system It is possible to use various types such as those. However, in the present invention, it is not always necessary to use a reactor having a shape having such a closed system as long as oxygen ions can be permeated. Further, in the present invention, auxiliary means for producing a pressure gradient or a concentration gradient may be provided as needed. Among these means, examples of means for producing a pressure gradient include means for pressurizing the oxygen supply chamber side with a pressurizing pump, means for depressurizing the oxidation reaction chamber side with a vacuum pump, and the like. Examples of means for producing the concentration gradient include a pressurizing means using a pressurizing pump for supplying a gas having a high oxygen concentration.

Next, the oxidation reaction method of the present invention will be described. The oxidation reaction method of the present invention can be suitably performed using the above-mentioned oxidation reaction device. The oxygen used may be a pure component oxygen molecular gas, air, or a gas in which oxygen and another gas (for example, nitrogen, helium, etc.) are mixed, and such a substance is supplied by the above-mentioned supply means. It

As the reaction substrate used, many compounds can be used, and they can be applied in any state of gas, liquid or solid in the reaction field (on or near the surface of the solid electrolyte), and the number of carbon atoms is not particularly limited. From 1 to 30
Saturated or unsaturated hydrocarbons, having 1 to 30 carbon atoms
Saturated or unsaturated carboxylic acids, having 1 to 3 carbon atoms
0 saturated and unsaturated alcohols and polyhydric alcohols, amines having 1 to 30 carbon atoms, RCOO
Among the compounds represented by R ', saturated or unsaturated hydrocarbons having 1 to 29 carbon atoms of R and having 1 to 3 carbon atoms of R'.
0 hydrocarbons, saturated or unsaturated ketones with 1 to 30 carbons, saturated or unsaturated aldehydes with 1 to 30 carbons, 6 to 30 carbons Organic compounds such as aromatic hydrocarbons, sugars, amino acids and the like.

Specifically, for example, hydrocarbons include methane, ethane, propane, ethylene, propylene, butene, butadiene, octane, octene, cetane, and cetene; examples of carboxylic acids include acetic acid, butyric acid, caproic acid, and caprylic acid. , Pelargonic acid, lauric acid, myristic acid,
Palmitic acid, stearic acid, arachidic acid, myristoleic acid, palmitoleic acid, oleic acid, erucic acid, linolenic acid, arachidonic acid, eicosapentaenoic acid, etc .; Alcohols include methyl alcohol, ethyl alcohol, propyl alcohol, octyl alcohol, Stearyl alcohol, oleyl alcohol, etc .; Polyhydric alcohols such as ethylene glycol, glycerin, etc .;
Examples of amines include monomethylamine, monoethylamine, monooctylamine, monostearylamine, monooleylamine, dimethylamine, trimethylamine, and the like; examples of compounds represented by RCOOR 'include methyl acetate, ethyl acetate, methyl butyrate, methyl octylate, and stearin. Methyl acid, methyl oleate, ethyl oleate, butyl oleate, etc .; ketones as acetone, pinacholine, mesityl oxide, etc .; aldehydes as acetaldehyde, enanthaldehyde, acrolein, crotonaldehyde, etc .; aromatic hydrocarbons Benzene, toluene, styrene, naphthalene,
Ethylbenzene and the like; saccharides, glucose, fructose, mannose, ribose, deoxyribose, sucrose, maltose, cellobiose and the like; amino acids, glycine, serine, lysine, alanine, valine, glutamic acid, phenylalanine, tyrosine, tryptophan and the like. To be Examples of the inorganic reaction substrate include hydrogen, oxygen, carbon, carbon monoxide and the like. The above reaction substrates can be used alone or in combination of two or more.

In the present invention, specific conditions for allowing oxygen ions to permeate by the oxygen supply means and the reaction substrate supply means are that at least one of a pressure gradient and a concentration gradient is generated through a solid electrolyte. Just do it. In order to generate a pressure gradient, a method of pressurizing the oxygen supply side, a method of depressurizing the reaction substrate supply side and the like can be mentioned. At this time, the differential pressure for causing the permeation of oxygen ions is usually 10 mmHg or more, preferably 50 mmHg as an oxygen partial pressure.
g or more. In order to generate a concentration gradient, a method of supplying a gas having a high oxygen concentration to the oxygen supply side, a method of pressurizing an oxygen-containing gas to supply a gas having a high oxygen concentration, or the like can be mentioned. Further, a reaction substrate mixed with an inert gas may be supplied to the reaction substrate supply side. At this time, the difference in oxygen concentration for causing the permeation of oxygen ions is usually 5 mol%.
Or more, preferably 10 mol% or more.

The reaction temperature of the oxidation reaction is 50 to 700 ° C.
It is preferably 50 to 500 ° C. At a temperature lower than 50 ° C., the permeation rate of oxygen ions in the solid electrolyte is extremely low, and at a temperature higher than 700 ° C., the solid electrolyte is easily cracked, which is not preferable. In the present invention, the oxidation reaction can be carried out at a lower temperature than before by increasing the permeability of oxygen ions by thinning the solid electrolyte. The pressure on the oxidation reaction side may be normal pressure, but may be reduced pressure in order to generate a pressure gradient through the solid electrolyte as described above.
In this case, the depressurization condition is usually 500 mmHg or less, preferably 200 mmHg or less. The pressure on the oxygen supply side may be normal pressure, but may be increased to generate a pressure gradient through the solid electrolyte as described above. The pressurizing condition in this case is usually 0.1 kgf / cm ²
Or more, preferably 1 kgf / cm ² or more. that's all,
The oxidation reaction method and apparatus using a solid electrolyte are shown.

According to the present invention, unburned hydrocarbons and soot contained in exhaust gas from various combustion furnaces such as incinerators and internal combustion engines, especially diesel engine exhaust gas which has become a problem in recent years, etc. It becomes possible to oxidize and remove the particulate matter consisting of. In addition, for the treatment of NOx, a hydrocarbon radical is generated by coexisting with a hydrocarbon such as methane.
NOx can be indirectly reduced. Furthermore, ozone is obtained by reacting oxygen with active oxygen generated according to the present invention, and an ozone generator using low energy, which replaces the ozone generator which has conventionally used a discharge phenomenon requiring high energy, is produced. You can Furthermore, since it is possible to generate active oxygen species in the liquid phase, it can be applied to a water treatment system (wastewater treatment, sterilization treatment, etc.) of water and sewage. Further, when the fuel is burned without generating a flame like a flameless burner, there is no ignition source, so that the organic substance containing the organic solvent can be heated and dried safely.

Further, the dirt of households and household appliances due to oil mist in general households can be removed by the provision of the oxidation reaction device of the present invention without trouble such as periodical manual cleaning. For example, it can be applied to inner and outer walls of air purifiers, inner walls of microwave ovens, hoods of system kitchens, and the like. Further, by providing the deodorizing equipment such as in a refrigerator with the oxidation reaction device of the present invention, deodorizing can be performed efficiently. The above is an application similar to complete oxidation, but the organic substance can be selectively oxidized by controlling the activity and supply rate of oxygen active species by temperature and the like. The use of the present invention is not limited to these, and the active oxygen obtained by the present invention can be used to oxidize any one, two or more substances that exhibit a gas phase, a liquid phase or a solid phase.

The mechanism of the oxidation reaction method of the present invention is considered as follows. A solid electrolyte composed of one or more kinds of metal oxides having a fluorite type crystal structure has a property of allowing oxygen ions to penetrate into lattice defects of oxygen ions. When oxygen is brought into contact with either side of this solid electrolyte, 1 / 2O
The reaction of ₂ + 2e ⁻ → O ^{2 −} occurs, and oxygen ions enter the lattice defects in the solid electrolyte. Oxygen ions that have entered the lattice defects are transported to the other side due to a concentration gradient in the vacancies, thermal diffusion, or a pressure gradient caused by pressurizing the oxygen supply side. On the other side of the solid electrolyte, O ^2- → O ^* + 2e
^- reaction of active oxygen species are generated to occur in. The generated active oxygen species enabled the oxidation reaction of the reaction substrate on or near the surface of the solid electrolyte. The permeability of oxygen ions in the solid electrolyte increases as the temperature rises, and as the thickness of the solid electrolyte decreases. That is, by reducing the thickness, oxygen ions can be favorably permeated even at a lower temperature, and a sufficient amount of active oxygen species can be generated. In the oxidation reaction method of the present invention, the reaction is carried out with the active oxygen species generated via the solid electrolyte, so various substances can be used as reaction substrates. Also,
For reactions that require mild conditions such as partial oxidation of organic substances,
It can be performed at a lower temperature by forming the solid electrolyte into a thin film.

[0026]

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples.

Example 1 FIG. 1 schematically shows an example of a reactor portion of an oxidation reaction apparatus of the present invention, in which two spaces partitioned by a solid electrolyte are provided in an oxygen supply chamber and an oxidation reaction chamber, respectively. It is what Reference numeral 1 is a zirconium oxide disc (manufactured by Japan Fine Ceramics Co., Ltd., thickness 0.1 mm, diameter 80 mm) in which solid electrolyte having oxygen ion permeability and 8 mol% concentration of yttrium oxide was solid-dissolved. Reference numeral 2 is an oxygen supply chamber for supplying oxygen into the solid electrolyte. Reference numeral 3 is an oxidation reaction chamber for supplying a reaction substrate and reacting with an active oxygen species.

Example 2 Using the apparatus shown in FIG. 1, carbon monoxide according to the present invention was oxidized under the condition of no catalyst and no electrode. The reaction method and the result are shown below. An oxygen cylinder was used as the oxygen supply means, oxygen was circulated in the oxygen supply chamber 2 at a flow rate of 50 ml / min, and carbon monoxide mixed helium gas with a concentration of 1027 ppm was supplied to the oxidation reaction chamber 3 by the high pressure gas cylinder which is the reaction substrate supply means. It was circulated at a flow rate of 20 ml / min. Heat with a heater so that the reaction temperature becomes 400 ° C,
The reaction was carried out under normal pressure. At this time, the driving force of the oxygen ion permeation is due to the oxygen partial pressure difference (760 m
mHg). The reaction result was confirmed by quantitatively measuring carbon dioxide as a product of gas at the inlet and the outlet by gas chromatography (GC8A manufactured by Shimadzu). As the analysis conditions, WG-100 (manufactured by GL Sciences) was used as a column, column temperature was 50 ° C., carrier gas was helium, carrier pressure was 0.8 kg / cm ² , and detector was TC.
D. As a result, carbon dioxide could not be detected in the inlet gas, but carbon dioxide was detected in the outlet gas.
It was confirmed that 0 ppm was present and carbon monoxide was oxidized. That is, it was confirmed by this example that the oxidation reaction occurs even under the condition of no catalyst and no electrode.

Example 3 Using the apparatus shown in FIG. 1, the oxidation reaction of graphite carbon according to the present invention in the gas phase was carried out. Hereinafter, the reaction method and results will be shown. Air was supplied to the second oxygen supply chamber at a flow rate of 50 ml / min. On the other hand, in the oxidation reaction chamber of No. 3, a 50% by weight aqueous graphite carbon suspension was applied onto one surface of a solid electrolyte. The temperature was set to 400 ° C. with a heater, the pressure in the oxidation reaction chamber was set to 100 mmHg with a vacuum pump, and the reaction was carried out. At this time, the graphite carbon was in a state of being dried and attached to the surface of the solid electrolyte, and the driving force for oxygen ion permeation was a pressure gradient existing via the solid electrolyte. To confirm the reaction product,
Nitrogen gas (99.9999%) was caused to flow into the oxidation reaction chamber of No. 3 at a flow rate of 50 ml / min, and the gas at the outlet thereof was analyzed by gas chromatography. The analysis conditions were the same as in Example 3, and the product carbon dioxide was quantified. As a result, it was found that carbon dioxide was present at 24 ppm in the outlet gas and carbon was oxidized.

[0030]

EFFECTS OF THE INVENTION According to the present invention, an active oxygen species generated without applying a voltage to a solid electrolyte, which has been thought to be impossible in the past, is used as a reaction species as it is, and an oxidation reaction is conducted under catalyst-free conditions without electrodes. It can be performed. As a result, it is possible to perform an oxidation reaction which is excellent in terms of safety without requiring a complicated device as in the past and applying a voltage.
Further, since the oxidation reaction in a liquid phase or a solid phase, which has hitherto been considered to be extremely difficult and has not been disclosed at all, has become possible, the present invention can be widely applied.

[Brief description of drawings]

FIG. 1 is a schematic view showing an example of a reactor part of an oxidation reaction device suitable for carrying out the oxidation reaction method of the present invention.

[Explanation of symbols]

 1 solid electrolyte 2 oxygen supply chamber 3 oxidation reaction chamber 4 reactor

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location C25B 1/00 Z 8414-4K 9/00 320 8414-4K (72) Inventor Keiichi Wakayama, Wakayama Prefecture 4-1-1 Sekido, Ichi, Japan (72) Masakata Masayoshi 2-31-24, Koenji Minami, Suginami-ku, Tokyo

Claims (2)

[Claims] 1. A method for carrying out an oxidation reaction using a solid electrolyte having a property of converting oxygen into oxygen ions, a property of transmitting oxygen ions, and a property of converting oxygen ions into active oxygen species, wherein one of the solid electrolytes is used. While supplying oxygen directly to the surface of one side and supplying the reaction substrate to the surface of the other side or the vicinity thereof, after converting oxygen into oxygen ions on the oxygen supplying side, the oxygen is permeated through the solid electrolyte and at the reaction substrate supplying side, A method for oxidation reaction, which comprises oxidizing a reaction substrate with an active oxygen species converted from oxygen ions. 2. A solid electrolyte having a property of converting oxygen into oxygen ions, a property of transmitting oxygen ions, and a property of converting oxygen ions into active oxygen species, and supplying oxygen to one surface of the solid electrolyte. And means for supplying the reaction substrate to the surface of the solid electrolyte or in the vicinity thereof so that the reaction substrate is oxidized by the active oxygen species generated on the other side of the solid electrolyte, and oxygen ions can permeate through the solid electrolyte. An oxidation reaction device having a structure as described above.