KR100814156B1 - Methane-oxygen generator and method for producing methane and oxygen from carbon dioxide and water using the same - Google Patents

Abstract

The present invention includes a cathode electrode and an anode electrode which is supplied with power, and a praton electrolyte layer provided between the cathode electrode and the anode electrode to move the pratone, and the carbon dioxide supplied to the cathode electrode and the anode electrode, respectively; A methane-oxygen generator for producing methane and oxygen from water and a method for producing methane from carbon dioxide using the same.

Description

Methane-oxygen generation device and method for making methane and oxygen from carbon dioxide and water using the same}

The present invention relates to a methane-oxygen generator and a method for producing methane and oxygen from carbon dioxide and water using the same, and more particularly, is provided between the cathode electrode and the anode electrode and the cathode electrode and the anode electrode is powered A methane-oxygen generator for producing methane and oxygen from carbon dioxide and water supplied to the cathode electrode and anode electrode, respectively, and a method of producing methane from carbon dioxide using the same; It is about.

The development of the industry continues to increase the use of fossil fuels. This increased use of fossil fuels inevitably increases the amount of carbon dioxide released into the atmosphere.

In Korea, the heavy chemical industry is high and the energy-intensive industry is developed.

Currently, research is underway to reduce the amount of carbon dioxide present in the atmosphere or to reduce the amount of carbon dioxide emitted. Among these studies, studies are underway to dissociate carbon dioxide using a catalyst.

However, the method of removing carbon dioxide from the atmosphere is merely a function of removing carbon dioxide from the atmosphere, but most of the other functions are not.

The present invention is to solve the above-mentioned disadvantages and problems of the prior art, the present invention is provided between the cathode electrode and the anode electrode and the cathode electrode and the anode electrode which is supplied with power and the praton electrolyte to move the pratone And a methane-oxygen generator for producing methane and oxygen from carbon dioxide and water supplied to the cathode and anode electrodes, respectively, and a method for producing methane from carbon dioxide using the same. It is an object of the present invention to provide a device for producing methane and oxygen having high added value using carbon dioxide and water as well as reducing carbon dioxide in the atmosphere.

The object of the present invention is a cathode electrode connected to the cathode of the power supply; An anode electrode connected to the anode of the power supply; And a praton electrolyte layer provided between the cathode electrode and the anode electrode, wherein the carbon dioxide-methane reaction layer generated between the praton electrolyte layer and the carbon dioxide reacts and is formed between the cathode electrode and the praton electrolyte layer. The cathode electrode is supplied with carbon dioxide to produce methane, and the anode electrode is supplied with water to produce oxygen, which is achieved by a methane-oxygen generator.

In addition, the object of the present invention is also achieved by the methane-oxygen generator, characterized in that the pratone electrolyte layer is made of BaCeO ₃ or SrCeO ₃ doped with any one of Y, Gd, Sn, Eu and Yb.

In addition, the above object of the present invention is also achieved by the methane-oxygen generator, characterized in that the carbon dioxide-methane reaction layer comprises BaCO ₃ or SrCO ₃ .

In addition, the object of the present invention the methane-oxygen generator further comprises a case for protecting the cathode electrode, anode electrode, praton electrolyte layer and carbon dioxide-methane reaction layer from the external environment, the case and the cathode electrode And a cathode space and an anode space, respectively, between the case and the anode electrode, wherein the case includes a carbon dioxide supply pipe for supplying carbon dioxide to the cathode space, a water supply pipe for supplying water to the anode space, and the cathode It is also achieved by the methane-oxygen generator which is equipped with the methane extraction tube which takes out methane from space, and the oxygen extraction tube which takes out oxygen from the said anode space.

In addition, the object of the present invention is also achieved by a methane-oxygen generating device, characterized in that the cathode electrode and the anode electrode are porous electrodes that allow carbon dioxide, methane, oxygen and water to pass through, respectively.

In addition, the object of the present invention is to provide a methane-oxygen generator comprising a cathode electrode, an anode electrode and a pratone electrolyte layer composed of BaCeO ₃ or SrCeO ₃ doped with any one of Y, Gd, Sn, Eu and Yb Heating; Supplying carbon dioxide to the cathode electrode to which a negative power is supplied, and supplying water to the anode electrode to which a positive power is supplied; Receiving the praton from the supplied water at the anode electrode side and moving to the cathode electrode side to generate oxygen at the same time; Reacting the supplied carbon dioxide and the praton electrolyte at the cathode electrode side to generate BaCO ₃ or SrCO ₃ ; And reacting BaCO ₃ or SrCO ₃ with the praton provided at the anode electrode to generate methane. It is also achieved by the method of producing methane and oxygen from carbon dioxide and water.

In addition, the object of the present invention is also achieved by the method of producing methane and oxygen from carbon dioxide and water, characterized in that the phenomenon of receiving a praton from the water supplied from the anode is a galvanic phenomenon.

In addition, the above object of the present invention is also achieved by a method for producing methane and oxygen from carbon dioxide and water, characterized in that the temperature for heating the methane-oxygen generator is at least 600 ℃, preferably at least 700 ℃.

The methane-oxygen generator of the present invention and a method for producing methane and oxygen from carbon dioxide and water using the same can remove carbon dioxide, which is recognized as a major factor of the greenhouse effect, and also uses carbon dioxide and water present in a large amount in the atmosphere. There is an effect of providing an apparatus capable of producing high added value methane and oxygen and a method of producing the same.

The methane-oxygen generator according to an embodiment of the present invention includes a cathode electrode connected to a cathode of a power supply device, an anode electrode connected to a cathode of a power supply device, and a praton electrolyte layer provided between the cathode electrode and the anode electrode. .

In addition, the methane-oxygen generator may further include a carbon dioxide-methane reaction layer generated between the pratone electrolyte layer and carbon dioxide reacting between the cathode electrode and the praton electrolyte layer.

In addition, the methane-oxygen generator produces methane by receiving a carbon dioxide from the cathode electrode side, and produces oxygen by receiving water from the anode electrode side.

In this case, the methane-oxygen generator is composed of BaCeO ₃ or SrCeO ₃ doped with any one of Y, Gd, Sn, Eu and Yb in the praton electrolyte layer. At this time, the methane of the present invention a preferred embodiment of the tone of the plastic electrolyte layer, an oxygen generating device is made of a BaCeY _{0 .2} O _{2 .9-δ} of the yttrium (Y) in the doped BaCeO _3.

In addition, the methane-oxygen generator is a carbon dioxide-methane reaction layer generated by the reaction of the carbon dioxide and the praton electrolyte layer comprises BaCO ₃ or SrCO ₃ .

In this case, the methane-oxygen generator is not the carbon dioxide-methane reaction layer when the pratone electrolyte layer is not in contact with carbon dioxide, the praton electrolyte layer is in contact with the carbon dioxide to react the cathode and pra A carbon oxide-methane reaction layer formed by reacting the praton electrolyte layer and carbon dioxide may be formed between the tone electrolyte layers.

 At this time, the methane-oxygen generator is further provided with a power supply for supplying a negative power and a positive power.

The methane-oxygen generator may include a case for protecting internal elements such as the cathode electrode, the anode electrode, the praton electrolyte layer, and the carbon dioxide-methane reaction layer from an external environment, and the case and the cathode inside the case. A cathode space and an anode space surrounded by the electrode and the anode electrode may be provided.

At this time, the case includes a carbon dioxide supply pipe for supplying carbon dioxide to the cathode space, a water supply pipe for supplying water to the anode space, a methane lead-out pipe for extracting methane from the cathode space, and withdrawing oxygen from the anode space. An oxygen extraction tube can be provided.

In this case, the cathode electrode and the anode electrode is made of porous to allow carbon dioxide, methane, oxygen and water to pass through, respectively.

In addition, the methane-oxygen generator includes a heating device capable of heating the inside of the case to maintain the elements inside the case, in particular, the carbon dioxide-methane reaction layer at a predetermined temperature or more.

In addition, the method for producing methane and oxygen from carbon dioxide and water according to an embodiment of the present invention uses the methane reaction apparatus described above.

A methane-oxygen generator comprising a cathode electrode, an anode electrode, and a praton electrolyte layer composed of BaCeO ₃ or SrCeO ₃ doped with any one of Y, Gd, Sn, Eu, and Yb is 600 ° C. or higher, preferably 700 ° C. Heating above. This serves to allow the supplied carbon dioxide to react actively in the carbon dioxide-methane reaction layer.

Subsequently, a negative power supply and a positive power supply are respectively supplied to the cathode electrode and the anode electrode of the methane reactor.

Subsequently, carbon dioxide is supplied to the cathode electrode side and water is supplied to the anode electrode side. At this time, the anode electrode receives the pratone from the supplied water by using a galvanic phenomenon to move to the cathode electrode side at the same time to generate oxygen.

On the cathode electrode side, the supplied carbon dioxide is decomposed to react with the pratone provided on the anode electrode to form methane, and at the same time, to produce BaCO ₃ or SrCO ₃ .

Details of the above objects and technical configurations and the effects thereof according to the present invention will be more clearly understood by the following detailed description with reference to the drawings showing preferred embodiments of the present invention. Like numbers refer to like elements throughout.

1 is a cross-sectional view showing the main components of the methane-oxygen generator and the operation of the components according to an embodiment of the present invention.

Referring to FIG. 1, FIG. 1 illustrates a main component and a function of a methane-oxygen generator according to an embodiment of the present invention. The methane-oxygen generator 100 is largely a cathode electrode 110. ), The anode electrode 120, the praton electrolyte layer 130, and the carbon dioxide-methane reaction layer 140. In this case, the methane-oxygen generator 100 may further include a power supply unit 150 for supplying power.

At this time, the praton electrolyte layer 130 is made of BaCeO ₃ or SrCeO ₃ doped with any one of Y, Gd, Sn, Eu and Yb. At this time, the preferred embodiment of the plastic tone electrolyte layer 130 is made of a BaCeY _{0 .2} O _{2 .9-δ} is a doped yttrium (Y) in BaCeO _3.

In addition, the carbon dioxide-methane reaction layer 140 includes BaCO ₃ or SrCO ₃ .

In this case, the carbon dioxide-methane reaction layer 140 is produced when the praton electrolyte layer 130 of the methane-oxygen generator 100 is in contact with carbon dioxide, thereby manufacturing the methane-oxygen generator 100. At this time, if the praton electrolyte layer 130 is not in contact with carbon dioxide, the carbon dioxide-methane reaction layer 140 does not exist initially, and at the same time supplying carbon dioxide to the methane-oxygen generating apparatus 100, the carbon dioxide- The methanol reaction layer 140 may be generated.

Of course, since the methane-oxygen generator 100 is manufactured as shown in FIG. 1, the carbon dioxide-methane reaction layer 140 may be prepared in advance by contacting the praton electrolyte layer 130 with carbon dioxide. have.

At this time, when the carbon dioxide is in contact with the praton electrolyte layer 130 to maintain a certain temperature or more to produce BaCO ₃ or SrCO ₃ forming the carbon dioxide-methane reaction layer 140, the predetermined temperature is at least 600 ℃ Should be In this case, the temperature is the minimum reaction temperature at which the praton electrolyte layer 130 and carbon dioxide react, and if the high reaction rate is desired, the reaction temperature is preferably maintained at a temperature of 700 ° C. or higher. At this time, the carbon dioxide-methane reaction layer 140 is made of a material produced by the reaction of the carbon dioxide and the praton electrolyte layer 130, so that the carbon dioxide-methane reaction layer 140 continues as long as the carbon dioxide is continuously supplied. To grow.

The cathode electrode 110 receives a negative power from the power supply device 150, and the anode electrode 120 receives a positive power supply from the power supply device 150.

The cathode electrode 110 and the anode electrode 120 are preferably made of a porous conductor material because various gases or molecules to be described later must pass through the electrodes. The cathode electrode 110 and the anode electrode 120 may be made of porous platinum (Pt) and silver (Ag), respectively.

The praton electrolyte layer 130 is provided between the cathode electrode 110 and the anode electrode 120 and moves the praton 160 generated at the anode electrode 120 side to the cathode electrode 110 side 160 ) Is the layer that plays a role.

Referring to the method of producing methane and oxygen from carbon dioxide and water using the methane-oxygen generator 100, first, the methane-oxygen generator 100 is heated to maintain a predetermined temperature or more. The reason for heating the methane-oxygen generator 100 is to allow the reaction of carbon dioxide to occur actively. At this time, the predetermined temperature is preferably 600 ° C or higher, preferably 700 ° C or higher.

Subsequently, a negative power and a positive power are supplied from the power supply device 150 connected to the cathode electrode 110 and the anode electrode 120 of the methane-oxygen generator 100.

Subsequently, carbon dioxide is supplied to the cathode electrode 110 and water is supplied to the anode electrode 120.

At this time, the anode electrode 120 is provided with the praton 160 by using the galvanic phenomenon from the supplied water as shown in the following formula 1 is moved to the cathode electrode 140 side. At the same time, the water provided with the proton 160 is changed to oxygen on the anode electrode 120 side.

Therefore, the anode electrode 120 side decomposes water to provide the praton 160 to the cathode electrode 140 and simultaneously generate oxygen.

On the cathode electrode side, as shown in Chemical Formula 2, the carbon dioxide reacts with BaCeO ₃ or SrCeO ₃ , which is a material forming the praton electrolyte layer 130, to form the carbon dioxide-methane reaction layer 140. To form the substance BaCO ₃ or SrCO ₃ .

In addition, the praton provided from the anode electrode 120 and the BaCO ₃ or SrCO ₃ react to generate methane.

Accordingly, at the cathode electrode side, chemically stabilized carbon dioxide is decomposed by forming BaCO ₃ or SrCO ₃ by reacting with BaCeO ₃ or SrCeO ₃ , which is a material of the praton electrolyte layer 130, and the anode electrode 120 React with the provided praton on the) side to produce methane.

The carbon dioxide-methane reaction layer 140 is made of BaCO ₃ or SrCO ₃ , which is a material produced by the reaction between the carbon dioxide and the praton electrolyte layer 130, and the praton provided from the anode electrode 120 is BaCO _3. Or a layer that reacts with SrCO ₃ to produce methane.

(Wherein M is Ba or Sr, which is a material forming the praton electrolyte layer)

Therefore, the methane-oxygen generator 100 of the present invention receives methane and oxygen to produce methane and oxygen.

2 is a cross-sectional view showing the overall configuration of the methane reactor described with reference to FIG.

Referring to FIG. 2, the methane-oxygen generator 100 of the present invention includes the cathode electrode 110, the anode electrode 120, the praton electrolyte layer 130, and the carbon dioxide-methane, described with reference to FIG. 1. The case 170 may be provided to protect the reaction layer 140 from the external environment.

In this case, the case 170 includes a cathode space 115 and an anode space 125 surrounded by an inner surface of the case 170 and the cathode electrode 110 and the anode electrode 120 therein. Can be. The cathode space 115 and the anode space 125 are spaces for accommodating carbon dioxide and methane, water, and oxygen described above.

The case 170 includes a carbon dioxide supply pipe 182 for supplying carbon dioxide to the cathode space 115, a water supply pipe 184 for supplying water to the anode space 125, and methane from the cathode space 115. It may be provided with a methane withdrawal tube 186 for withdrawing and an oxygen withdrawal tube 188 withdrawing oxygen from the anode space (125).

Although the supply pipes 182 and 184 and the drawing pipes 186 and 188 are not shown in the drawing, they are connected to the supply pump and the drawing pump to supply carbon dioxide and water into the spaces 115 and 125 or to the interior of the spaces 115 and 125. Methane and oxygen can be withdrawn.

In addition, the methane-oxygen generator 100 includes a heating device 190 capable of heating the inside of the case 170, in particular, the carbon dioxide-methane reaction layer 140. Can be maintained. In this case, although the heating device 190 is illustrated as being attached to the outside of the case 170 in FIG. 2, the heating device 190 may be provided in the cathode space 115 and the anode space 125 inside the case 170. In addition, at least one of the cathode electrode 110, the anode electrode 120, the praton electrolyte layer 130 and the carbon dioxide-methane reaction layer 140 and the inner surface of the case 170 is provided to the device It may be provided so that it can be heated directly.

Therefore, the methane-oxygen generator of the present invention and a method for producing methane and oxygen from carbon dioxide and water using the same can not only remove carbon dioxide, which is recognized as a major factor of the greenhouse effect, The present invention provides a device capable of producing high value-added methane and oxygen using water, and a method of manufacturing the same.

Although the present invention has been shown and described with reference to preferred embodiments as described above, it is not limited to the above-described embodiments and those skilled in the art without departing from the spirit of the present invention. Various changes and modifications will be possible.

1 is a cross-sectional view showing the main components of the methane-oxygen generator and the operation of the components according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the overall configuration of the methane-oxygen generator described with reference to FIG. 1.

<Description of the symbols for the main parts of the drawings>

100: methane-oxygen generator 110: cathode electrode

120: anode electrode 130: praton electrolyte layer

140: carbon dioxide-methane reaction layer 150: power

160: Praton 170: case

190: heating device

Claims (12)

A cathode electrode connected with the cathode of the power supply; An anode electrode connected to the anode of the power supply; And And a praton electrolyte layer provided between the cathode electrode and the anode electrode. And a carbon dioxide-methane reaction layer formed between the cathode electrode and the praton electrolyte layer by reacting the praton electrolyte layer with carbon dioxide. The cathode electrode side is supplied with carbon dioxide to produce methane, the anode electrode side is supplied with water to produce oxygen, characterized in that the methane-oxygen generator. The method of claim 1, The praton electrolyte layer is methane-oxygen generator, characterized in that consisting of BaCeO ₃ or SrCeO ₃ doped with one of Y, Gd, Sn, Eu and Yb. The method of claim 1, Methane-oxygen generating device characterized in that the carbon dioxide-methane reaction layer comprises BaCO ₃ or SrCO ₃ . The method according to any one of claims 1 to 3, The methane reaction device further comprises a case for protecting the cathode electrode, the anode electrode, the praton electrolyte layer and the carbon dioxide-methane reaction layer from the external environment. The method of claim 4, wherein The methane reactor comprises a cathode space and an anode space between the case and the cathode electrode, and between the case and the anode electrode, respectively. The method of claim 5, wherein The case includes a carbon dioxide supply pipe for supplying carbon dioxide to the cathode space, a water supply pipe for supplying water to the anode space, a methane extraction pipe for drawing methane from the cathode space, and oxygen for drawing oxygen from the anode space. A methane-oxygen generator, characterized by comprising a withdrawal pipe. The method of claim 6, The cathode electrode and the anode electrode is a methane-oxygen generator, characterized in that the porous electrodes through which carbon dioxide and methane and oxygen and water can pass through, respectively. The method of claim 6, The methane-oxygen generating device further comprises a heating device capable of heating the inside of the case. Heating a methane-oxygen generating device comprising a cathode electrode, an anode electrode and a praton electrolyte layer composed of BaCeO ₃ or SrCeO ₃ doped with one of Y, Gd, Sn, Eu and Yb; Supplying carbon dioxide to the cathode electrode to which a negative power is supplied, and supplying water to the anode electrode to which a positive power is supplied; Receiving the praton from the supplied water at the anode electrode side and moving to the cathode electrode side to generate oxygen at the same time; Reacting the supplied carbon dioxide and the praton electrolyte at the cathode electrode side to generate BaCO ₃ or SrCO ₃ ; And And reacting BaCO ₃ or SrCO ₃ with the praton provided at the anode electrode to generate methane. The method of claim 9, The method of producing methane and oxygen from carbon dioxide and water is characterized in that the phenomenon of receiving a praton from the water supplied from the anode is a galvanic phenomenon. The method according to claim 9 or 10, The temperature for heating the methane-oxygen generator is a method of producing methane and oxygen from carbon dioxide and water, characterized in that more than 600 ℃. The method of claim 11, Method for producing methane and oxygen from carbon dioxide and water, characterized in that the temperature for heating the methane-oxygen generator is 700 ℃ or more.

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