Method and device for producing hydrocarbon

Abstract

To provide a method and a device for producing a hydrocarbon using micro-bubbles, which are capable of more efficiently reducing carbon dioxide to synthesize the hydrocarbon.SOLUTION: There is provided a method for producing a hydrocarbon, comprising: dissolving carbon dioxide as micro-bubbles in water; dissolving a gas that generates active oxygen as micro-bubbles; generating active oxygen by irradiating the water containing micro-bubbles of the gas that generates active oxygen with ultraviolet rays in a presence of a photocatalyst; and bringing the micro-bubbles of the carbon dioxide into contact with the active oxygen in the presence of the active oxygen to reduce the carbon dioxide. The micro-bubbles of the gas that generates active oxygen are dissolved in the water at 10 to the power of 8 per mL or more, the micro-bubbles of carbon dioxide are dissolved in the water at 10 to the power of 8 per mL or more, and the gas that generates active oxygen contains ozone.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a technology for a method and an apparatus for producing hydrocarbons using fine bubbles. [Background technology]

[0002] Conventionally, methods for synthesizing hydrocarbons by reducing carbon dioxide in water include a method in which hydrogen is added under high temperature and pressure conditions, etc. However, the conventional methods have problems in that the cost of the equipment is high and the maintenance of the equipment is complicated because the synthesis is performed by adding hydrogen under high temperature and pressure conditions.

[0003] Therefore, a method for synthesizing hydrocarbons that does not require high temperature and high pressure conditions and the addition of hydrogen has been proposed (see, for example, Patent Document 1). In the method for synthesizing hydrocarbons shown in Patent Document 1, oxygen is supplied to water containing carbon dioxide to generate oxygen nanobubbles (fine bubbles), and active oxygen is generated by irradiating the water containing the fine oxygen bubbles with ultraviolet light in the presence of a photocatalyst, and carbon dioxide is reduced in the presence of the active oxygen. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6440742 Summary of the Invention [Problem to be solved by the invention]

[0005] In the conventional method of synthesizing hydrocarbons by carbon dioxide reduction, active oxygen is generated by irradiating fine oxygen bubbles with ultraviolet light, but the generation of active oxygen using the oxygen is slow when the amount of fine bubbles is small. Therefore, a method for generating a sufficient amount of active oxygen in large quantities in the form of fine bubbles has been desired.

[0006] In view of the above, the present invention provides a method and apparatus for producing hydrocarbons using fine bubbles, which can more efficiently reduce carbon dioxide to synthesize hydrocarbons. [Means for solving the problem]

[0007] The problem to be solved by the present invention has been described above, and the means for solving this problem will now be described.

[0008] That is, in the present invention, carbon dioxide is dissolved in water as fine bubbles, The gas that generates active oxygen is dissolved as fine bubbles, generating the active oxygen by irradiating ultraviolet light onto water containing fine bubbles of the gas that generates the active oxygen in the presence of a photocatalyst; A method for producing a hydrocarbon by contacting fine bubbles of carbon dioxide in the presence of the active oxygen to reduce the hydrocarbon, comprising the steps of: The microscopic bubbles of gas that generate active oxygen are dissolved in water at a concentration of 108 / mL or more, The carbon dioxide microbubbles are dissolved in water at a concentration of 108 / mL or more, The gas that generates active oxygen contains ozone.

[0009] Alternatively, ultrasonic waves may be irradiated into the water to collapse the fine bubbles of the gas that generates the active oxygen and carbon dioxide.

[0010] In the present invention, a silent discharge may be applied to the gas that generates active oxygen, and the gas containing a large number of electrons may be dissolved in the form of fine bubbles.

[0011] In the present invention, the photocatalyst is formed of a carrier made of a metal processed into a cotton-like form, The support may have titanium oxide attached thereto.

[0012] In the present invention, the titanium oxide may be a brookite-type titanium dioxide.

[0013] In the present invention, the titanium oxide may be a decahedral titanium oxide.

[0014] In the present invention, a reducing agent containing hydrogen is dissolved in the form of fine bubbles in the intermediate product containing carbon dioxide that could not be reduced to the hydrocarbon, The oxidation-reduction potential of the intermediate product may be a negative (-) value.

[0015] In addition, the present invention provides a water tank for storing water, A first fine bubble generating member for dissolving carbon dioxide as fine bubbles; A second fine bubble generating member for dissolving a gas that generates active oxygen as fine bubbles; an ultraviolet irradiation member that irradiates ultraviolet light onto water containing fine bubbles of the gas that generates active oxygen in the presence of a photocatalyst; Equipped with The ultraviolet irradiation member irradiates water containing fine bubbles of gas that generate active oxygen with ultraviolet light, thereby generating active oxygen, and thereby reduces the water by contacting fine bubbles of carbon dioxide in the presence of the generated active oxygen, The microscopic bubbles of gas that generate active oxygen are dissolved in water at a concentration of 108 / mL or more, The carbon dioxide microbubbles are dissolved in water at a concentration of 108 / mL or more, The gas that generates active oxygen includes ozone. Effect of the Invention

[0016] The present invention has the following advantages.

[0017] In the present invention, by supplying ozone, which can be generated more efficiently as a gas for generating active oxygen than oxygen, in the form of fine bubbles, it is possible to increase the reaction opportunities and promote the synthesis of hydrocarbons. [Brief description of the drawings]

[0018] [Figure 1] 1 is a schematic diagram showing a hydrocarbon production apparatus. [Diagram 2] FIG. 2 is a partial cross-sectional view showing a first fine bubble generating medium and a second fine bubble generating medium. [Diagram 3] FIG. 3 is a schematic diagram showing an intermediate product reducing device. [Figure 4] FIG. 4 is a partial cross-sectional view showing a third fine bubble generating medium. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Next, an embodiment of the invention will be described. First, a method for producing hydrocarbons according to the present invention (first method) and an apparatus for producing the same will be described.

[0020] As shown in FIG. 1, a production apparatus 10 for synthesizing hydrocarbons by the hydrocarbon production method according to the present invention includes a water tank 11 for storing water A, a first fine bubble generating medium 14 which is a first fine bubble generating member for dissolving carbon dioxide as fine bubbles, a second fine bubble generating medium 16 which is a second fine bubble generating member for dissolving a gas that generates active oxygen as fine bubbles, and a UV lamp 19 which is an ultraviolet ray irradiation member for irradiating ultraviolet rays to the water containing fine bubbles of the gas that generates active oxygen in the presence of a photocatalyst.

[0021] A predetermined amount of water A that has been passed through a reverse osmosis membrane is stored in the water tank 11. Impurities such as ions and salts are removed from the water A by passing it through the reverse osmosis membrane.

[0022] The first fine bubble generating member that dissolves carbon dioxide as fine bubbles is formed of a cylindrical first fine bubble generating medium 14. As shown in Figs. 1 and 2, the fine bubble generating medium 14 is arranged parallel to the direction in which the water in the water tank 11 flows (the direction of the black arrow in Fig. 2). In this embodiment, the first fine bubble generating medium 14 is arranged parallel to the direction in which the water flows, but this is not limited thereto, and the first fine bubble generating medium 14 may be arranged so that the downstream side is inclined downward with respect to the direction in which the water flows. The first fine bubble generating medium 14 is provided with an internal space 14a that is connected to a carbon dioxide supply device 15.

[0023] The first fine bubble generating medium 14 is made of a carbon-based porous material and has many fine holes 14A with diameters of several μm to several tens of μm, as shown in FIG. 2. The first fine bubble generating medium 14 is an electrical conductor, and the bubbles generated from the first fine bubble generating medium 14 are negatively charged. In other words, free electrons are added to the fine bubbles when they pass through the first fine bubble generating medium 14, which is an electrical conductor, and the bubbles are negatively charged. This negative charge makes it possible to prevent the bubbles from repelling each other and merging to form larger bubbles.

[0024] A carbon-based porous material is an inorganic material that is composed of only carbon or a composite material containing carbon and ceramic. A film having a thickness of several nm is formed on the surface of the carbon-based porous material. The film is formed of an inorganic film containing silicon. Carbon-based porous materials have oxidation resistance, do not rust, and do not deteriorate due to oxidation even when placed in water for a long period of time. In addition, the surface is formed of an inorganic film containing silicon, and has the property of being resistant to dirt adhesion.

[0025] The second fine bubble generating member, which dissolves the gas that generates active oxygen as fine bubbles, is formed of a cylindrical second fine bubble generating medium 16. Ozone is used as the gas that generates active oxygen. Ozone is a substance that generates active oxygen when oxygen or water is decomposed. The gas that generates active oxygen is not limited to ozone, and may be, for example, hydrogen peroxide, chlorine, or hypochlorous acid.

[0026] As shown in Figs. 1 and 2, the second micro-bubble generating medium 16 is arranged parallel to the direction in which the water in the water tank 11 flows (the direction of the black arrow in Fig. 2). In this embodiment, the micro-bubble generating medium 16 is arranged parallel to the direction in which the water flows, but this is not limited thereto, and the micro-bubble generating medium 16 may be arranged so that the downstream side is inclined downward with respect to the direction in which the water flows. The micro-bubble generating medium 16 is provided with an internal space 16a connected to an ozone supply device 17. The ozone supply device 17 is composed of an oxygen storage tank 17a, which is a raw material for ozone, and a silent discharge device 17b provided downstream of the oxygen storage tank 17a. The electrons released collide with stable oxygen molecules supplied from the oxygen storage tank 17a to dissociate them into oxygen atoms, and ozone is formed by a three-body collision. This allows many negative electrons to be introduced into the water.

[0027] The micro-bubble generating medium 16 is made of a carbon-based porous material, and has many fine holes 16A with diameters of several μm to several tens of μm, as shown in Fig. 2. The micro-bubble generating medium 16 is an electrical conductor, and the bubbles generated from the micro-bubble generating medium 16 are negatively charged. In other words, free electrons are added to the micro-bubbles when they pass through the electrical conductor, the micro-bubble generating medium 16, and thus the micro-bubbles are negatively charged. This negative charge makes it possible to prevent the bubbles from repelling each other and merging to form larger bubbles.

[0028] A carbon-based porous material is an inorganic material that is composed of only carbon or a composite material containing carbon and ceramic. A film having a thickness of several nm is formed on the surface of the carbon-based porous material. The film is formed of an inorganic film containing silicon. Carbon-based porous materials have oxidation resistance, do not rust, and do not deteriorate due to oxidation even when placed in water for a long period of time. In addition, the surface is formed of an inorganic film containing silicon, and has the property of being resistant to dirt adhesion.

[0029] As shown in Fig. 1, the photocatalyst device 18 includes a UV lamp 19 for irradiating ultraviolet light onto water A containing fine bubbles of carbon dioxide and ozone, and a reaction tube 20 having a photocatalyst therein. The UV lamp 19 is disposed around the reaction tube 20 and irradiates ultraviolet light toward the reaction tube 20. The reaction tube 20 is a tubular container that is permeable to ultraviolet light, and is configured so that the water A containing fine bubbles of carbon dioxide and ozone can pass through the inside of the reaction tube.

[0030] In the photocatalyst device 18, water A containing gas that generates active oxygen and carbon dioxide is supplied at a predetermined flow rate to the inside of a reaction tube 20 filled with a photocatalyst, and ultraviolet rays are irradiated onto the water A passing through the reaction tube 20. Then, the water A that has passed through the photocatalyst device 18 is returned to the photocatalyst device 18 again by a circulation pump 23 and circulated for a predetermined time. The circulation pump 23 can also discharge water downstream, and a separation membrane 24 is provided on the downstream side to separate and collect the remaining carbon dioxide.

[0031] The photocatalyst device 18 may also be provided with an ultrasonic generator 21 inside that generates ultrasonic waves in the water A in the reaction tube 20. The ultrasonic generator 21 is a device that collapses fine bubbles dissolved in the water. Fine bubbles have the property of being difficult to collapse due to their tiny size. When the bubbles are collapsed by the ultrasonic generator 21, energy is excited. This promotes the production of active oxygen. It is desirable that the wavelength band of the ultrasonic waves generated by the ultrasonic generator 21 is higher than 120 kHz. This efficiently promotes the production of active oxygen.

[0032] The photocatalyst provided in the reaction tube 20 is formed of a carrier 22 made of metal processed into a cotton-like material. Titanium oxide is attached to the carrier 22. Gas containing many electrons is attracted to the metal carrier 22 of the photocatalyst, thereby increasing the contact efficiency. This promotes the generation of active oxygen using the photocatalyst. Active oxygen is generated from ozone by irradiating ultraviolet light from a UV lamp 19 in the presence of titanium oxide.

[0033] The titanium oxide is formed of brookite-type titanium dioxide. Brookite-type titanium dioxide is formed in an orthorhombic crystal system and has a complex crystal structure, making it a highly active substance. Therefore, it is likely to contribute to the activation of ozone, and since it is processed into a cotton-like form, the contact area is large, and it exerts a photocatalytic effect with high efficiency. The metal attached to the support 22 is not limited to titanium oxide, and may be, for example, a conductor such as tungsten stainless steel.

[0034] The titanium oxide may be formed as a decahedral titanium oxide, which has high crystallinity, suppresses recombination of electrons and holes, and exhibits a highly efficient photocatalytic effect.

[0035] In the manufacturing apparatus 10, first, water A is poured into the water tank 11, and fine bubbles of ozone, a gas that generates active oxygen, are generated from the second fine bubble generating medium 16 and dissolved in the water. Also, fine bubbles of carbon dioxide are generated from the first fine bubble generating medium 14 and dissolved in the water. Equal amounts of carbon dioxide and ozone are dissolved in the water A. In the presence of a photocatalyst, the water A containing ozone, a gas that generates active oxygen, is irradiated with ultraviolet light. As a result, active oxygen such as superoxide anion radicals and hydroxyl radicals are generated from the ozone that has become fine bubbles, as shown in reaction formula (1). 2O3 → Active oxygen (O2 - ·, OH·, etc.) (1) Active oxygen such as superoxide anion radicals and hydroxyl radicals are substances in a highly excited state in which electrons are excited. By directly supplying ozone as fine bubbles, the excitation energy intensity is increased compared to when oxygen is supplied as fine bubbles to generate active oxygen via ozone, making it easier to generate active oxygen. At the same time, a reduction reaction of the carbon dioxide that has become fine bubbles dissolved in water A occurs, as shown in reaction formula (2). CO2+H2O→CO+H2+O2(2)

[0036] In addition, the carbon dioxide is dissolved as fine bubbles, which increases the reaction area and improves the reaction efficiency. Carbon dioxide is also dissolved as fine bubbles, which causes an excess of electrons, and some excited singlet oxygen is generated. This increases the amount of active oxygen generated.

[0037] The reduction reaction of carbon dioxide in the above reaction formula (2) occurs in the presence of the active oxygen generated in the above reaction formula (1), so the reaction shown in reaction formula (3) proceeds, resulting in the synthesis of hydrocarbons. (2n+1)H2+nCO→C n H 2n+2 +nH2O (3) That is, hydrocarbons are synthesized by reducing carbon dioxide in the presence of active oxygen generated from ozone in a fine bubble state.

[0038] In this way, the production apparatus 10 generates fine bubbles of carbon dioxide and ozone, and while circulating water A containing the fine ozone bubbles, irradiates ultraviolet light in the photocatalyst device 18 to reduce carbon dioxide and synthesize hydrocarbons, so that hydrocarbons can be easily synthesized simply by using water containing carbon dioxide and fine ozone bubbles (without forming a gas column of carbon dioxide or a swirling flow of water). Therefore, hydrocarbons can be efficiently synthesized.

[0039] [Example 1] In the production apparatus 10, water is supplied from a supply port to a water tank 11. Then, a first fine bubble generating medium 14 and a second fine bubble generating medium 16 are operated in the water tank 11 to supply fine bubbles of ozone and carbon dioxide into the water.

[0040] The carbon dioxide is sent to the internal space 14a of the first fine bubble generating medium 14, and passes through fine holes 14A with diameters of several μm to several tens of μm provided in the first fine bubble generating medium 14, and moves to the surface of the first fine bubble generating medium 14. The carbon dioxide that has moved to the surface of the first fine bubble generating medium 14 becomes fine bubbles, and is released into the water by the force of the water flow supplied from the supply port. The dissolved concentration of the carbon dioxide fine bubbles released into the water is 108 / mL or more. This makes the surface area of ​​the carbon dioxide fine bubbles very large, improving the reaction opportunity.

[0041] The ozone is sent to the internal space 16a of the second fine bubble generating medium 16, and passes through fine holes 16A with diameters of several μm to several tens of μm provided in the second fine bubble generating medium 16, and moves to the surface of the second fine bubble generating medium 16. The ozone that moves to the surface of the second fine bubble generating medium 16 becomes fine bubbles, and is released into the water by the force of the water flow supplied from the supply port. The dissolved concentration of the ozone fine bubbles released into the water is 108 / mL or more. This makes the surface area of ​​the ozone fine bubbles very large, improving the reaction opportunity.

[0042] The water having ozone and carbon dioxide dissolved therein was supplied to the photocatalyst device 18 at a flow rate of several to several tens of L / min, while being irradiated with ultraviolet light from a UV lamp 19 in the presence of titanium oxide (photocatalyst). The water was then circulated between the photocatalyst device 18 and the water tank 11 for 24 hours. The carrier 22 in the photocatalyst device 18 is made of metal and is connected to an earth (not shown). As the carrier 22 is made of metal, minute bubbles of ozone and minute bubbles of carbon dioxide are easily attracted to it, facilitating the reaction.

[0043] In order to retain (dissolve) ozone and carbon dioxide sufficiently in the water tank 11, ozone and carbon dioxide were continuously supplied to the water tank 11 and dissolved as fine bubbles while the water was circulated between the photocatalyst device 18 and the water tank 11 for 24 hours. In order to prevent the generated hydrocarbons from volatilizing, the upper surface of the water tank 11 was sealed with a sealant.

[0044] [Example 2] Furthermore, as one embodiment of the manufacturing apparatus 10, an intermediate product reduction device 29 can be provided downstream of the photocatalyst device 18. The intermediate product reduction device 29 is a device that dissolves a reducing agent containing hydrogen as fine bubbles in the intermediate product B, which contains carbon dioxide that could not be reduced to hydrocarbons in the photocatalyst device 18, to make the oxidation-reduction potential of the intermediate product B a negative (-) value. Intermediate product B is unsuitable as fuel because it contains carbon dioxide that could not be reduced to hydrocarbons and does not contain a sufficient amount of hydrocarbons. Therefore, a reducing agent containing hydrogen gas is dissolved as fine bubbles to reduce intermediate product B and make the redox potential a negative (-) value, thereby reforming intermediate product B so that it can be used as a fuel containing hydrogen. As shown in FIG. 3, the intermediate product reduction device 29 includes an intermediate product water tank 30 for temporarily storing the intermediate product B, and a third fine bubble generating medium 31 which is a third fine bubble generating member for dissolving a reducing agent containing hydrogen gas as fine bubbles.

[0045] The third fine bubble generating medium 31 is made of a carbon-based porous material, and has many fine pores 31A with diameters of several μm to several tens of μm, as shown in FIG. 4. The third fine bubble generating medium 31 is an electrical conductor, and the bubbles generated from the third fine bubble generating medium 31 are negatively charged. In other words, free electrons are added to the fine bubbles when they pass through the third fine bubble generating medium 31, which is an electrical conductor, and thus the bubbles are negatively charged. This negative charge makes it possible to prevent the bubbles from repelling each other and merging to form larger bubbles.

[0046] A carbon-based porous material is an inorganic material that is composed of only carbon or a composite material containing carbon and ceramic. A film having a thickness of several nm is formed on the surface of the carbon-based porous material. The film is formed of an inorganic film containing silicon. Carbon-based porous materials have oxidation resistance, do not rust, and do not deteriorate due to oxidation even when placed in water for a long period of time. In addition, the surface is formed of an inorganic film containing silicon, and has the property of being resistant to dirt adhesion.

[0047] The third fine bubble generating member, which dissolves the gas serving as a reducing agent as fine bubbles, is formed of a cylindrical third fine bubble generating medium 31. The gas serving as a reducing agent contains hydrogen, and hydrogen atoms are added to hydrocarbons and unreacted carbon dioxide using hydrogen as a reducing agent. The reduction reaction is carried out in a hydrogenation catalyst device 33. The third fine bubble generating medium 31 is provided with an internal space 31a connected to a hydrogen supply device 32.

[0048] In the hydrogenation catalyst device 33, the intermediate product B is supplied at a predetermined flow rate into the inside of a reaction tube 34 filled with a catalyst, thereby making the reduction potential of the intermediate product a negative (-) value.

[0049] By configuring in this way, it becomes possible to use incomplete fuels, which contain carbon dioxide that has not been completely synthesized into hydrocarbons, as alternative fuels.

[0050] As described above, the method for producing hydrocarbons according to the present invention comprises dissolving carbon dioxide as fine bubbles in water, dissolving a gas that generates active oxygen as fine bubbles, irradiating the water containing the fine bubbles of the gas that generates active oxygen with ultraviolet light in the presence of a photocatalyst to generate active oxygen, and reducing the gas by contacting the fine bubbles of carbon dioxide in the presence of the active oxygen, wherein the fine bubbles of the gas that generates active oxygen are dissolved in the water at a rate of 10 to the power of 8 bubbles / mL or more, the fine bubbles of carbon dioxide are dissolved in the water at a rate of 10 to the power of 8 bubbles or more, and the gas that generates active oxygen contains ozone. With this configuration, ozone, which can be generated more efficiently as a gas for generating active oxygen than oxygen, is supplied in the form of fine bubbles, thereby increasing the reaction opportunities and promoting the synthesis of hydrocarbons.

[0051] Alternatively, ultrasonic waves may be irradiated into the water to collapse the fine bubbles of gas and carbon dioxide that generate active oxygen. With this configuration, when the fine bubbles of ozone and carbon dioxide are collapsed, energy is excited, and active oxygen is more likely to be generated.

[0052] Also, the fine carbon dioxide bubbles remaining from the synthesized hydrocarbon may be separated by a separation membrane. With this configuration, the quality of the hydrocarbons can be improved by removing fine carbon dioxide bubbles from the hydrocarbons.

[0053] The photocatalyst may be formed of a carrier made of a metal processed into a cotton-like form, and titanium oxide may be attached to the carrier. With this configuration, active oxygen is generated from ozone by irradiating ultraviolet light from the UV lamp 19 in the presence of titanium oxide.

[0054] The titanium oxide may be a brookite type titanium dioxide. By configuring in this manner, it is possible to promote the activation of ozone, and since it is processed into a cotton-like form, the contact area is increased, thereby achieving a highly efficient photocatalytic effect.

[0055] The titanium oxide may be a decahedral titanium oxide. With this structure, the recombination of electrons and holes is suppressed, and the photocatalytic action is exerted with high efficiency.

[0056] A reducing agent containing hydrogen may be further dissolved as fine bubbles in the intermediate product containing carbon dioxide that could not be reduced to the hydrocarbons, thereby making the redox potential of the intermediate product a negative (-) value. By configuring in this way, it becomes possible to use incomplete fuels, which contain carbon dioxide that has not been completely synthesized into hydrocarbons, as alternative fuels.

[0057] The hydrocarbon production apparatus 10 of the present invention is equipped with a first fine-bubble generating member 14 for dissolving carbon dioxide as fine bubbles, a second fine-bubble generating member 16 for dissolving ozone as fine bubbles, and a UV lamp 19 for irradiating ultraviolet light onto water containing ozone fine bubbles in the presence of a photocatalyst, and is a hydrocarbon production apparatus in which fine carbon dioxide bubbles are reduced by contacting them with highly reactive ozone generated by irradiating ultraviolet light onto water containing ozone fine bubbles with water, and the number of ozone fine bubbles dissolved in the water is 10 to the power of 8 or more per mL, and the number of carbon dioxide fine bubbles dissolved in the water is 10 to the power of 8 or more per mL. With this configuration, ozone, which is a gas that generates active oxygen more powerfully than oxygen, is supplied in the form of fine bubbles, thereby increasing the reaction opportunities and promoting the synthesis of hydrocarbons. [Explanation of symbols]

[0058] 10 Manufacturing equipment 11. Aquarium 14 First microbubble generating medium 15 Carbon dioxide supply device 16 Second fine bubble generating medium 17 Ozone supply device 18 Photocatalyst device 19 UV lamp (ultraviolet light irradiation component) 20 Reaction tube 21 Ultrasonic generator 29 Intermediate product reduction device 30 Aquarium 31 Third microbubble generating medium 32 Hydrogen supply device 33 Hydrogenation catalyst unit 34 Reaction tube A Water B Intermediate product

Claims

1. Carbon dioxide is dissolved in the water as tiny bubbles, The gas that generates active oxygen is dissolved as fine bubbles, generating the active oxygen by irradiating ultraviolet light onto water containing fine bubbles of the gas that generates the active oxygen in the presence of a photocatalyst; A method for producing a hydrocarbon by contacting fine bubbles of carbon dioxide in the presence of the active oxygen to reduce the hydrocarbon, comprising the steps of: The fine gas bubbles that generate active oxygen are dissolved in water at a concentration of 108 / mL or more, The carbon dioxide fine bubbles are dissolved in the water at a concentration of 108 / mL or more, The gas that generates active oxygen includes ozone. A method for producing hydrocarbons comprising the steps of:

2. Ultrasonic waves are applied to the water to collapse the fine bubbles of the gas and carbon dioxide that generate the active oxygen. The method for producing hydrocarbons according to claim 1 .

3. A silent discharge is applied to the gas that generates the active oxygen, and the gas containing a large number of electrons is dissolved as fine bubbles. The method for producing hydrocarbons according to claim 1 .

4. The photocatalyst is formed of a carrier made of a metal processed into a cotton-like form, Titanium oxide is attached to the carrier. The method for producing hydrocarbons according to claim 1 .

5. The titanium oxide is a brookite type titanium dioxide. The method for producing hydrocarbons according to claim 4 .

6. The titanium oxide is a decahedral titanium oxide. The method for producing hydrocarbons according to claim 4 .

7. A reducing agent containing hydrogen is dissolved in the intermediate product containing carbon dioxide that could not be reduced to the hydrocarbon in the form of fine bubbles, The redox potential of the intermediate product is made negative (-) The method for producing hydrocarbons according to claim 1 .

8. A tank for storing water; A first fine bubble generating member for dissolving carbon dioxide as fine bubbles; A second fine bubble generating member for dissolving a gas that generates active oxygen as fine bubbles; an ultraviolet irradiation member that irradiates ultraviolet light onto water containing fine bubbles of the gas that generates active oxygen in the presence of a photocatalyst; Equipped with The ultraviolet irradiation member irradiates water containing fine bubbles of gas that generate active oxygen with ultraviolet light, thereby generating active oxygen, and thereby reduces the water by contacting fine bubbles of carbon dioxide in the presence of the generated active oxygen, The fine gas bubbles that generate active oxygen are dissolved in water at a concentration of 108 / mL or more, The carbon dioxide fine bubbles are dissolved in the water at a concentration of 108 / mL or more, The gas that generates active oxygen includes ozone. A hydrocarbon production apparatus comprising:

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