JP4885641B2 - Marine electrolysis factory - Google Patents

Description

Obtained in the process of seawater desalination by electric power obtained from windmills installed on a floating ship deck or water turbines lined up in a flow path formed by arranging a number of single-hull boats with sharp bows in the surface seawater beneath the deck. This is related to a system for producing, storing and transporting new ingots of aluminum by electrolyzing the salt produced and electrolyzing the molten salt of caustic soda and the loaded alumina.

The soda industry is the basic industry of the chemical industry together with the sulfuric acid industry, and the chemical industry starts from both. According to 2005 statistics, Japan's production volume is steady at 45.5 million tons. However, because soda industry in Japan relies on imported salt for all raw material salt, more than half of its imported price is transportation costs. Furthermore, high power for electrolysis is indispensable for producing caustic soda from this salt, and an increase in cost beyond the present level will cause the international competitiveness of our caustic soda / chlorine industry to be lost. As countermeasures, it has become an urgent issue to promote the transition of electric power to midnight power, the establishment or expansion of private power generation facilities, or the enlargement of transport vessels.

According to the 2004 statistics, Japan's consumption of new bullion aluminum is 2 million tons, 7% of the world, and more than 99% depends on imports. The refining of light metal representative aluminum requires a large amount of power, so countries with low power generation costs are advantageous. According to Non-Patent Document 1, Russia, Canada, the United States, Brazil, etc., which have large-scale hydropower plants Occupies the top. On the other hand, Japan, which is highly dependent on foreign countries such as oil and has high electricity charges, is overwhelmingly unfavorable, and only the Nippon Light Metal and Ebara Plant, which has its own hydroelectric power plant, is currently refining new bullion from bauxite. . Even in China, the world's top producer of aluminum, as disclosed in Non-Patent Document 2, according to the “China Aluminum Industry Development Policy” (October 7, 2005), electrolytic aluminum and alumina production are in the eastern region where power generation costs are high. Will be closed and the production base will be shifted to the western region where hydropower and coal resources are abundant. In addition, electrolytic aluminum manufacturers will be encouraged to import alumina and reduce import duties on alumina by 3-5%. Are considering.

There is an urgent need to rebuild industries that influence national power, such as energy, soda, and light metals. In particular, high power is required for the production of caustic soda by electrolysis of salt or the refining of aluminum. Russia's summit held in St. Petersburg these days, the world's crude oil production share is 12%, second only after Saudi Arabia, and natural gas is 22%. Russia, which shows off its own influence on the world in “energy security”, China, which has begun to use international remarks with its abundant natural resources as a weapon, and the remarks of the leaders of each country focus on measures to curb crude oil consumption However, nuclear, natural gas, the sun, etc. are cited as urgent measures against oil removal. In this way, there is a great increase in the mood to rely on natural energy that does not use fossil fuels. Natural energy power generation includes wind power, hydropower (tidal power), wave power, solar cells, solar heat, etc. Among them, wind power can be installed perpendicular to the ground surface, so the installation area is smaller than other natural energy power generation installations It can be used both day and night. Patent Documents 1 and 2 disclose that this wind power generation is used for power of a pressure pump for treating untreated water and seawater in a reverse osmosis plant. Similarly, Patent Document 3 discloses the use of wind power generation for the power of a seawater pump for the purpose of desalination of seawater. Patent Document 4 discloses that wind power generation is used as electric power for electrolyzing fresh water obtained from a seawater desalination apparatus to produce hydrogen.

There are also attempts to desalinate seawater using wind power as a direct power source. Patent Document 5 discloses an osmotic seawater desalination apparatus in which an air compressor is connected to a wind turbine shaft, and fresh air is produced from seawater by causing compressed air from a compressed air tank to act on seawater. Patent Document 6 discloses a wind-driven seawater desalination plant as means for sending seawater to an evaporation pipe for a seawater desalination plant.

Energy obtained by wind power (W) is swept area (A), air density ([rho), is given by When the wind speed ^{(V) W = AρV 3/} 2. Here, the density of air is 1.2 kg / m3 and the density of water is 1025 kg / m3. For this reason, if the wind flow is changed to the water flow, 854 times as much energy can be obtained. There are Kuroshio Current (Japan Current) and Tsushima Current around Japan. The Kuroshio Current flowing through Tokara Strait, Cape Ashizuri, Cape Muroto, Cape Shio, Miyakejima and Mikurajima is 250km wide, 1000m deep, and 0.3 to 2m / s in velocity. It is a water stream power source.

As described above, the output of the water turbine is proportional to the cube of the water flow. Therefore, if the water flow velocity passing through the rotating surface of the water wheel is increased, the effect is great. Fortunately, the flow path composed of single hulls arranged in parallel with each other has an acute angle at the bow, so the ocean current inevitably narrows as it goes to the ridge, so the flow velocity increases. Here, the sharp angle of the bow means a convex shape with a sharp water drainage angle, and means a shape that gradually spreads from the bow, such as a V-shape or U-shape. Furthermore, the wave resistance of a single ship is reduced by making the bow a spherical bow. For this reason, high output is obtained from the water wheel in the flow path. For this reason, a plurality of vertical axis type turbines or propeller type horizontal axis turbines are arranged along the flow path. However, if the turbines are arranged vertically in one flow path, the speed of the downstream or downstream turbine is attenuated. For this reason, a nozzle flow type speed increasing device is installed in front of each turbine to increase the inflow speed of seawater. Thus, for example, when the flow velocity is increased by 1.5 times, the turbine output increases by 3.38 times. This nozzle flow type speed increasing device is equipped with curved walls as a single unit on both sides and / or the upper and lower surfaces of the water turbine. When the water wheel is a vertical shaft type, it is a square loudspeaker shape, and a propeller type horizontal In the case of a shaft, it is a trumpet shape.

Natural energy such as wind power and hydropower mentioned above tends to seem to be a good energy source that is friendly to the global environment and does not cause resource depletion, but these are all natural and geographical conditions. It is difficult to obtain a desired generated power depending on weather conditions and places. Therefore, a method of using wind energy or offshore where there is abundant natural energy such as tidal current and ocean current has been proposed. Patent Document 7 discloses that electric power obtained by wind power generation is used to draw deep ocean water into a pool suspended on the sea. Patent Document 8 discloses that wind power generation is used for desalination by electrolysis of seawater. Patent Document 9 discloses a power generation facility that uses natural energy such as wind power generation, wave power generation, and ocean temperature difference power generation for a large floating structure installed on the sea. Patent Documents 10 and 11 include producing hydrogen and oxygen gas by electrolyzing water desalinated by electric power obtained by steam turbine power generation, wave power generation, wind power generation, etc. by solar heat on a movable floating body. Is disclosed. Wind turbines installed on the surface of floating or floating ship decks are preferably omnidirectional regardless of the wind direction. The inventor of the present application discloses vertical axis wind turbines that extract electric power from both wind energy and hydraulic energy in Patent Documents 12 and 13.

By integrating the above-mentioned references, the present invention can be used to produce caustic soda that does not rely on salt import or aluminum by using a configuration that obtains desired generated power and raw materials on the ocean as a method that is not restricted by natural / geographical conditions or weather conditions and locations. It has made it possible to nurture the aluminum industry by moving away from 99% imports of new bullion, stopping only imports of raw materials, and switching to domestic refining.

Japanese Patent Publication No. 2004-537668 Japanese Unexamined Patent Publication No. 2000-202441 Japanese Patent Laid-Open No. 2004-290945 Japanese Patent Application Laid-Open No. 2005-069125 Japanese Patent Laid-Open No. 2003-083230 Japanese Patent Publication No. 2005-521557 Japanese Unexamined Patent Publication No. 2002-059893 Japanese Patent Laid-Open No. 2001-213388 Japanese Patent Laid-Open No. 2002-255091 Japanese Patent Laid-Open No. 2002-303454 Japanese Patent Laid-Open No. 2005-145218 Japanese Patent Laid-Open No. 2003-206848 Japanese Patent Application Laid-Open No. 2003-206849 Japanese Patent Application No. 2006-168275 Issued on June 1, 2006 Hong Kong Economic News (October 7, 2005) Introduction to Electrochemistry, Takehiko Takahashi, Sakai Shoten, 4th edition, February 20, 1991 Latest product science, Kokuseisha, p. 79, published on December 20, 1973

Conventional procurement of energy resources is limited to places where resources are abundant from the viewpoint of economy, and how to economically transport them to consumption areas has been a problem. However, modern industry has caused repeated over-exploitation of resources, and the resulting global depletion of resources has resulted in high resources, and the rise of resource-providing countries has increased its influence in the international community. Resource powers that threaten demanding countries are emerging. This is the very beginning of resource use. Fortunately, our country is surrounded by the sea, and considering the circumference of the continental shelf of 200 nautical miles, we have the potential to become an abundant resource country. Mineral resources dissolved in seawater, energy sources such as ocean currents, tides, seawater temperature differences, drinking water and industrial water are also marine resources. The problem to be solved by the present invention is to economically manufacture these inexhaustible marine resources without using fossil fuels.

Compared to wind power generation, ocean current power generation such as the Kuroshio Current has a constant flow rate and velocity, wide ocean current width, and flowing water never stops. Furthermore, since water has a higher density than the wind, 854 times more energy can be obtained by replacing the wind flow with the water flow. For example, compared to the annual average wind speed of 6 meters, the Kuroshio current flow rate is at most 2 meters. Therefore, the flow path constructed by arranging a plurality of monohulls in parallel with each other has an acute angle at the bow, so the ocean current is inevitably narrowed as it goes to the ridge, and the flow velocity increases. Furthermore, the wave resistance of a single ship is reduced by making the bow a spherical bow. In line with this flow path, vertical axis type turbines or propeller type horizontal axis turbines are lined up, and in order to increase the speed of the ocean current, a nozzle flow type ocean current speed increasing device for increasing the inflow velocity is installed in front of each turbine. Accordingly, it is an object of the present invention to reduce the diameter of the impeller and the propeller of the water wheel and increase the electric power obtained from one water wheel.

So far, seawater desalination and production facilities for water-soluble metals such as magnesium have been limited to the vicinity of thermal power plants in coastal areas, and these water-soluble metals have been said to be fossil powers like aluminum. As disclosed in Non-Patent Document 1, in Japan, 99% of new bullion is relied on for imports, and the refinement of new bullion is done by Nippon Light Metal with a private power plant, Sugawara ( Shizuoka Prefecture) only. The same applies to metallic sodium, and there is only one location at Nippon Soda and Nihongi Plant (Niigata Prefecture). On the other hand, because caustic soda, the main product of soda industry, consumes a lot of electricity due to electrolysis, the fiscal 2011 revenue of the caustic soda business is 500 million yen in deficit. It will be lost. As shown in Non-Patent Document 3, the power used per ton of product is as large as about 2500 kWh, and the raw material salt is 100% imported. In particular, the present invention solves all caustic soda production from which raw material salt can be collected from seawater. In Japan, the mercury method was the mainstream of the salt electrolysis method until the Showa 30s, but by June 1986, the full conversion to the diaphragm method and the ion exchange membrane method was completed. However, as disclosed in Non-Patent Document 4, the mercury method that is easy to manufacture and capable of producing high-purity caustic soda is difficult to throw away. Occupies the mainstream.

As an offshore structure, a platform was constructed like an oil drilling well, but the enormous energy supplied to the development depended on oil. Recently, however, proposals have been made to use solar and wind energy abundant on the ocean. Patent Document 9 discloses the use of natural energy such as wind power generation, wave power generation, and ocean temperature difference power generation as a power generation facility for a large floating structure installed on the sea. In patent documents 10 and 11, hydrogen and oxygen gas are produced by electrolyzing fresh water obtained by desalinating seawater with electric power obtained by steam turbine power generation, wave power generation, wind power generation, etc. by solar heat. In patent document 7, the deep sea water is pumped up with the electric power obtained by wind power generation. Patent Document 8 discloses desalination by electrolysis of seawater using wind power generation. But little is produced of metal by recovery, concentration, molten salt electrolysis of cans water desalination blind seawater attempts, let alone, their product calling at storage and land to hold and shipping time of departure alumina There is no marine electrolysis factory system that produces new bullion aluminum and metallic magnesium by electrolyzing molten magnesium at sea and using molten salt.

The present invention has been made in view of the above-described problems. That is, the object of the present invention is to effectively use high power generated by clean and renewable energy by fluid energy such as ocean currents and wind power, and desalinate seawater at the power production site to produce fresh water, and at the same time caustic soda from the concentrated cans water waste, metallic sodium, metallic magnesium, producing chlorine, such as hydrogen gas, landed them product at ports of call destination, and shipping the alumina or spent magnesium oxide from land, Ya marine current power Using abundant electric power obtained from wind power generation, raw materials loaded from the port are electrolyzed with molten salt to produce metal aluminum and magnesium. As an offshore factory / cargo ship that performs all these tasks, or as a mother ship that continues production on the spot, it can reduce energy loss during production, storage, and transportation, and improve the efficiency of the entire system. To provide a marine electrolysis factory.

In order to achieve the above object, the marine electrolysis factory of the present invention, as disclosed in the patent document 23 by the present inventors, is composed of a large catamaran, a double-hull, a single-hull, a submarine, or a mega than a float, In order to obtain a large amount of power from fluid energy at offshore resource collection sites, it is equipped with multiple omnidirectional vertical axis wind turbines and propeller type horizontal axis turbines above and below the deck. Can float or moor. The ship is moored especially when performing ocean current power generation using ocean currents such as the Kuroshio Current. In order to generate ocean currents, a double hull is desirable rather than a single hull, and two or more omnidirectional vertical axis wind turbines are provided on the upper deck where two or more hulls are combined. Several vertical axis turbines and propeller-type horizontal turbines for power generation are provided.

The flow path composed of single hulls arranged side by side in parallel is narrowed as the ocean current advances to the dredging because each bow has an acute angle, and the flow velocity inevitably increases. Furthermore, the wave resistance of a single ship is reduced by making the bow a spherical bow. A vertical axis type turbine or a propeller type horizontal axis turbine is arranged in a line at a certain interval in a channel formed by arranging a plurality of boats in parallel, and this is installed in each channel. Furthermore, a nozzle flow type ocean current speed increasing device having a large upstream opening area and a narrow turbine turbine part is installed in front of each turbine. This nozzle flow type ocean current speed increasing device is in the form of a square loudspeaker in the case of a vertical axis type water turbine, and in the form of a trumpet in the case of a propeller type horizontal axis water turbine, which can further increase the power generation efficiency of the water turbine. .

To produce fresh water by desalination by reverse osmosis sea water by using the electric power produced at sea, the cans water exiting the waste is concentrated by electrodialysis to about 30%, and further decoction combined and precipitated with sodium chloride crystals, the filtrate Separate from the remaining bitter juice. Magnesium chloride obtained from this bitter juice is electrolyzed with molten salt to produce magnesium metal, and the other salt crystals are made from fresh water obtained by desalination to produce a salt solution having a concentration of about 30%. To produce caustic soda.

For the production of caustic soda, if pure saline is obtained, instead of producing salt, the seawater is concentrated to about 30% by ion-exchange membrane dialysis, and then a small amount of caustic soda produced at the offshore plant is added to salify the concentrated seawater. Caustic soda is produced by precipitating impurities such as magnesium and electrolyzing the electrolyte neutralized with hydrochloric acid produced by reacting hydrogen chloride produced at the offshore factory with fresh water. The hydrogen produced in the caustic soda manufacturing process is used as a raw material for producing hydrogen chloride and hydrochloric acid, and the remainder is packed in a cylinder and transported to the land. Chlorine is produced in the caustic soda manufacturing process and sodium and magnesium molten salt electrolysis, so the remainder of the hydrogen chloride and hydrochloric acid production is packed in a cylinder and transported to land.

As disclosed in Non-Patent Document 3, aluminum new bullion crushes imported bauxite ore and roasts it at 400-600 ° C in a rotary furnace to remove adhering water, crystal water, organic matter, etc. . When this is pulverized to 20 mesh or less, caustic soda is added, and extraction is performed at 140 to 170 ° C. and 4 to 5 atm in an autoclave, it becomes sodium aluminate and dissolves. After dilution with water, the insoluble matter is separated by precipitation or filtration. When this solution is cooled and adjusted to a specific gravity of 1.2 with water, it is naturally hydrolyzed to precipitate aluminum hydroxide. When aluminum hydroxide crystals prepared separately are added as seed crystals and the reaction is promoted by stirring slowly, 50 to 60% aluminum hydroxide precipitates in 3 to 5 days. This is filtered and washed with an Oliver filter and then fired at a high temperature to produce high purity alumina. Generally, to produce 1 ton of alumina, 2 tons of bauxite and a residue are produced at the same rate, and high temperature roasting and curing time are required. Therefore, it is desirable that alumina production depend on land or import, but import bauxite is produced offshore. It is also possible to produce offshore using caustic soda and electricity. Cryolite is added to about 1 ton of alumina to lower the melting point to 935 ° C., and a small amount of fluorite is added to produce about 0.5 ton of new metal aluminum by molten salt electrolysis.

As described above, according to the present invention, the power obtained from offshore currents and wind power is effectively used at the seawater collection site, caustic soda, fresh water, salt, hydrogen, chlorine, hydrochloric acid, hydrogen chloride, magnesium, sodium. At the same time, new bullion aluminum is manufactured from the loaded alumina, cryolite, and fluorite, reducing energy loss during storage and transportation of the product, and improving the efficiency of the entire system. An excellent effect is obtained.

Hereinafter, an effective embodiment of the present invention will be described in detail with reference to FIGS.

FIG. 1 is a schematic configuration diagram of an embodiment of the present invention. As shown in this figure, the marine electrolysis factory of the present invention performs ocean current power generation 3 and wind power generation 4 on a floating ship / submarine ship 1 floating in the ocean using fluid energy resources 2 such as ocean current and wind. means a seawater i.e. sea water by reverse osmosis 7 under pressure by a pump from the dissolved mineral resources 5 in seawater 6 pumped and desalination means seawater to produce fresh water 8, cans water salt concentration of about 5% of the discharged simultaneously further ion exchange membrane dialysis method 9 or by pumped concentrated cans water 10 at a concentration of about 30% by the seawater 6 directly ion-exchange membrane dialysis method 9, power or melt obtained from a fluid energy resources 2, such as ocean currents and wind Doing infusible rigid 14 by utilizing the heat generated by the salt electrolysis 11,12,13, microcrystalline sodium chloride at boiling point 108 ° C. or more cans water begins to precipitate, the brine 15 in the crude crystals at about 160 ° C. Manufactured . Here, the bitter juice extracted at the same time is taken out and boiled and the magnesium chloride 16 is subjected to molten salt electrolysis 11 with the electric power obtained by the ocean current power generation 3 and the wind power generation 4 to produce the metal magnesium 17. Sodium chloride 15 obtained in this step is dissolved in fresh water 8 obtained by desalination of seawater 6 to form an electrolyte, and an aqueous solution electrolyzed 19 of a salt solution 18 having a concentration of about 30% produces caustic soda 20. For the production of the caustic soda 20, it is desirable to adopt a mercury method by which a high-purity caustic soda can be obtained by a simple method. However, in Japan, the mercury method is completely abolished, and therefore a diaphragm method or an ion exchange membrane method is used. As a method for producing a directly caustic soda 20 from seawater poured a small amount of caustic soda 20 produced by the present invention a concentration of about 30% concentration cans water 10 produced by the ion-exchange dialysis membrane method 9 performs caustic soda process 21, concentrated cans water 10 is precipitated. The magnesium chloride 16 thus precipitated is used as a raw material for the metallic magnesium 17, and the other mother liquor is neutralized 22 with hydrochloric acid, and then electrolyzed 19 with an aqueous solution 18 of an electrolyte to produce caustic soda 20. Hydrochloric acid used for neutralization is added fresh water 8 to hydrogen chloride 25 produced by reacting chlorine 23 obtained from the anode and hydrogen 24 obtained from the cathode as a by-product of aqueous electrolysis 19 for producing caustic soda 20. Manufactured. Here, if the mercury method is adopted in the caustic soda production process, mercury produces sodium amalgam due to extremely high hydrogen overvoltage, and by pouring water into this, the caustic soda 20 and hydrogen 24 can be easily taken out with high purity. The remaining hydrogen gas 24 produced here is packed in a cylinder and transported from the port 26 to a consumption area. Since the chlorine gas 23 is also obtained as an exhaust gas in the molten salt electrolysis 11 and 12, it is packed in a cylinder including these and transported from the port 26 to the consumption area. A part of the caustic soda 20 produced here is produced by molten salt electrolysis 12 to produce metallic sodium 27, which is stored in petroleum and unloaded from the port 26. On the other hand, spent magnesium oxide 29 of the loaded mineral resources 28 loaded from the land is reacted with hydrogen chloride 25 in the chlorination step 30 to form magnesium chloride 16, and then regenerated to metal magnesium 17 by molten salt electrolysis 11. On the other hand, alumina, cryolite, and fluorite 31, which are raw materials for refining aluminum in land mineral resources 28, produce new bullion aluminum 32 by molten salt electrolysis 13.

In the marine electrolysis factory of the present invention, the floating ship / submarine ship 1 in FIG. 1 means a tanker or other monohull or double hull or a mega float or submarine underwater structure, Alternatively, it can be moored to produce caustic soda, fresh water, salt, hydrogen, chlorine, hydrochloric acid, hydrogen chloride, magnesium, sodium and the like. The electric power required to produce 1 ton of caustic soda is expected to be about 2500 Kwh, aluminum about 13000 kWh / ton, sodium about 10500 kWh / ton, and magnesium about 10,000 kWh / ton. It is the present invention that the electric power used for these electrolysis is covered by ocean current power generation or wind power generation by the Kuroshio Current. If the power generation amount per turbine or windmill is expected to be 5000 kW, 200 to 300 facilities can be obtained to obtain 1 to 1.5 million kW. The size of the floating ship / submarine ship 1 is 1 km wide and 2 km long, and 20 to 30 turbines and windmills are installed therein, and the ratio of the turbines and windmills is 3: 1 or 1: 1. Build 10-20 boats.

FIG. 2 is a schematic configuration diagram for effectively obtaining power from the ocean current. As shown in this figure, a multihull floating ship 1 moored in an ocean current 33 forms a flow path by a plurality of single hulls 35, and a plurality of vertical axis type turbines 34 are spaced along the flow path at a certain interval. It is the schematic diagram which carried out the basic equipment. The monohull 35 is composed of an acute bow 36, an anchor 38 and an obtuse stern 37 to form a so-called streamlined structure, reduce the wave resistance, and the area of the flow path entrance of the bow 36 of the two boats constituting the flow path. Is larger than the area of the channel constituted by the ridge 38, the ocean current is inevitably narrowed as it proceeds to the ridge 38, and the flow velocity increases. For this reason, high output is obtained from the water wheel 34 in the flow path. In the present invention, a plurality of similar water channels are made to supply high power for electrolysis. FIG. 3 is a sectional view of the floating ship 1 of FIG. 2 as seen from the bow side. In the water channel formed by a plurality of single hulls 35, there are an upper deck 40 and a lower deck 41, and a fixing plate (wing) 42 for fixing the rotating shaft of the turbine 34 near the keel on the bottom of the single hull 35. Install a water turbine 34 below the water line 39. The cross section of the fixed plate 42 has a wing shape so that the flow velocity in the water channel is high and the hull is floated. Further, by making the bow a spherical bow 43, the wave resistance of the single ship is reduced.

FIG. 4 is a schematic configuration diagram for obtaining higher power from the ocean current. As shown in this figure, a multihull floating ship 1 moored in an ocean current 33 forms a flow path by a plurality of single hulls 35, and a vertical axis type water wheel 34 and a water wheel impeller rather than that are formed along this flow path. It is the schematic diagram which installed two or more facilities at intervals with the water wheel 45 with a small diameter. The monohull 35 is composed of an acute bow 36, an anchor 38 and an obtuse stern 37 to form a so-called streamlined structure, reduce the wave resistance, and the area of the flow path entrance of the bow 36 of the two boats constituting the flow path. Is larger than the area of the channel formed by the ridge 38, the ocean current is inevitably narrowed toward the ridge 38, and the flow velocity is increased. For this reason, high output is obtained from the water wheel 34 in the flow path. However, if the turbines are arranged vertically in one flow path, the speed of the downstream or downstream turbine is attenuated. For this reason, in order to increase the inflow speed of seawater in front of each turbine, a nozzle flow type speed increasing device 44 in the form of a square loudspeaker is provided. An outline of the nozzle flow type speed increasing device 44 is shown in FIG. A square loudspeaker-like nozzle flow type speed increasing device 44 is installed under the waterline 39 of the floating ship 1 and is used for speeding up a set of two fluids attached to the anchor 38 of a plurality of monohulls 35. A rectangular loudspeaker speed increasing device 43 comprising a curved surface plate 44 and a curved surface plate 46 for speeding up to fix the rotating shaft of the water wheel 45 enters the seawater inlet 47 in front of the water wheel 45. As the ocean current 33 proceeds to the ocean outlet 48, the cross-sectional area decreases, the flow velocity increases, and the rotational speed of the water turbine 45 increases. Therefore, the impeller diameter of the water wheel 45 in the speed increasing device 44 in the form of a square loudspeaker can be made smaller than the impeller diameter of the water wheel 34 near the bow 36 of the floating ship 1, and the output is also large. In the present invention, a plurality of similar water channels are made to supply high power for electrolysis.

As described above, according to the present invention, as described above, large power is effectively produced from natural energy such as ocean currents and wind power, and caustic soda, fresh water, salt, hydrogen, chlorine, Produces hydrochloric acid, hydrogen chloride, magnesium, sodium, etc., and at the same time produces new bullion aluminum from alumina, cryolite and fluorite loaded from the port, reducing energy loss during storage and transportation of products. Of course, the energy efficiency of the entire system can also be improved.

According to the present invention, a complex ship or mega float moored in the sea area where the Kuroshio Current flows, and from the abundant electric power obtained from ocean current power generation and wind power generation produced in situ, caustic soda, new bullion aluminum, etc. are manufactured as by-products Manufacture fresh water, salt, hydrogen, chlorine, hydrochloric acid, hydrogen chloride, magnesium, sodium, etc., land these products at the port of call, and load alumina, spent magnesium oxide, etc. Produces magnesium metal. As an offshore factory / cargo ship that performs all these tasks, or as a mother ship that continues production on the spot, it can reduce energy loss during production, storage, and transportation, and improve the efficiency of the entire system. It is a marine electrolysis factory. This has led to a global depletion of resources and high resources, and the rise of resource-providing countries that accompanies this has not only calmed down the current situation that is expanding its influence on the international community, but also an inexhaustible clean and renewable resource. Producing marine resources economically without using fossil fuels is an important means for Japanese industries surrounded by the sea.

It is a schematic block diagram which shows embodiment of this invention. Double frames in the figure are energy sources and raw materials, and white letters indicate products. It is a top view for demonstrating arrangement | positioning of the turbine for fluid energy power generation which uses the compound boat of this invention as a water channel. It is sectional drawing seen from the bow for demonstrating arrangement | positioning of the turbine for fluid energy power generation which uses the compound boat of this invention as a water channel. It is a top view for demonstrating arrangement | positioning of the water turbine for fluid energy power generation using the double hull ship of this invention as a water channel, adding a flow-speed speed-increase apparatus in the water channel. It is a square loudspeaker-like nozzle flow ocean current speed-up schematic block diagram.

Explanation of symbols

1 Floating ship / submersible ship 2 Fluid energy resources
3 marine current power means 4 wind power unit 5 seawater dissolved minerals 6 sea 7 reverse osmosis 8 freshwater 9 ion exchange membrane dialysis method 10 concentrated cans water 11 molten salt electrolysis apparatus (for magnesium)
12 Molten salt electrolyzer (for sodium)
13 Molten salt electrolyzer (for aluminum)
14 Sengo 15 Salt 16 Magnesium chloride 17 Magnesium 18 Salt solution 19 Aqueous solution electrolysis (for caustic soda)
20 Caustic Soda 21 Caustic Soda Treatment 22 Chlorine Neutralization Treatment 23 Chlorine Gas 24 Hydrogen Gas 25 Hydrogen Chloride Gas 26 Port 27 Sodium 28 Shipping Mineral Resources 29 Used Magnesium Oxide 30 Chlorination Treatment 31 Alumina, Cryolite, Fluorite 32 Aluminum 33 Ocean Current 34 Vertical shaft type water wheel (large diameter)
35 Monohull 36 Bow 37 Stern 38 舷 39 Water Line (Sea Level)
40 Upper deck 41 Lower deck 42 Turbine fixed wing 43 Spherical bow 44 Accelerated curved surface plate
45 Vertical shaft type water wheel (small diameter)
46 Speed-up curved plate (up and down the water wheel shaft)
47 ocean current inlet 48 ocean current outlet

Claims (3)

In floating bodies or floating ships composed of double or single bodies or mega floats floating in the ocean, or submarine-like underwater structures,
Means for generating electricity by a water wheel or wind turbine using fluid energy such as ocean current or wind;
Means for producing fresh water by desalinating seawater;
Caustic soda is obtained by electrolyzing the sodium chloride solution obtained by further diluting the brine discharged in the desalination step with salt water obtained by diluting the salt water with fresh water or the sodium chloride solution produced by the ion-exchange dialysis membrane, and then subjecting the saline solution to electrolysis. Means for manufacturing,
Means for producing aluminum new bullion by electrolyzing molten alumina, cryolite, and fluorite,
Means for producing magnesium metal by electrolyzing molten salt electrolysis of magnesium chloride obtained as bitter in the salt production process;
The magnesium chloride produced by reacting the hydrogen produced at the cathode by the electrolysis of the brine and the chlorine produced at the anode by reacting with the used magnesium oxide loaded with the magnesium chloride is converted into the magnesium metal by the molten salt electrolysis. Means for manufacturing;
Means for producing sodium metal by molten salt electrolysis of caustic soda;
Means for reacting the hydrogen chloride with fresh water to produce hydrochloric acid;
A marine (offshore) electrolysis plant comprising means for storing hydrogen gas, chlorine gas, or by-product chlorine gas obtained by molten salt electrolysis obtained by electrolysis of the brine in a cylinder . The marine (offshore) electrolysis factory is composed of a floating ship or a floating ship formed by arranging a plurality of monohull boats with sharp bows in parallel,
A vertical axis type turbine or a propeller type horizontal axis turbine is arranged in a line along each flow path formed by the mutually opposite dredgers of the plurality of single hulls, and power generation by the turbine is performed. Item 1. A power generation method in an ocean (offshore) electrolysis factory according to item 1. In order to impart functions to cause nozzle flow at the operating region of the vertical axis type hydraulic turbine or the propeller type horizontal axis water turbine, the curved wall and equipment on both side of the ship of the single hulls (right and left), or the flow path Equipped with a square loudspeaker shape or trumpet-shaped horn-like structure consisting of curved walls ,
The ocean current that has flowed in through the opening that has been widened in the bow direction is accelerated by the shape of the passage that is narrowed in the stern direction by the curved wall. The power generation method in the marine (offshore) electrolysis factory according to claim 2, wherein power is generated by amplifying the power.

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