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AssigneeSumitomo Metal Industries, Ltd.
InventorsYasutoshi Hinada, Sanai Kosugi, Ken Watanabe, Kentaro Niwa, Takayuki Saito
Estimating the term…
Waste carbon dioxide gas discharged in large quantities from stationary gas generating facilities such as thermal power plants, is dissolved in sea water and isolated deep in the sea to prevent global warming. A vessel is installed in the sea or at the water surface or in the vicinity thereof. A pipe forming a short leg is open at a lower end, functions as a dissolving pipe, and is equipped with a device for blowing a water-soluble gas. A pipe forming a long leg is open at a lower end portion and functions as a sinking pipe. The pipe forming a short leg and the pipe forming a long leg are connected through the vessel, and undissolved gas is diffused into the atmosphere or into the sea from the liquid surface within the vessel.
A method of dissolving a water-soluble gas in sea water and isolating it deep in the sea, characterized by connecting a pipe forming a short leg and a pipe forming a long leg through a vessel for separating and collecting undissolved gas, using the pipe forming a short leg as a dissolving pipe, blowing gas containing a water-soluble gas into the open lower end portion thereof, introducing sea water from the lower end portion of the pipe forming a short leg by the gas lift effect of gas in the pipe forming a short leg and dissolving water-soluble gas contained in the gas in the sea water as the sea water rises within the pipe forming a short leg, separating undissolved gas within the vessel, using the pipe forming a long leg as a sinking pipe having its lower end portion opening onto deep in the sea, and making sea water within the vessel sink deep into the sea.
An apparatus for dissolving water-soluble gas in sea water and isolating it deep in the sea, characterized by being equipped with a vessel for separation and collection of undissolved gas, a pipe forming a short leg which is open at its lower end portion and which is equipped with blowing means for gas containing a water-soluble gas and which functions as a dissolving pipe exhibiting a gas lift effect, and a pipe forming a long leg which is open at its lower end portion and which functions as a sinking pipe, the pipe forming a short leg and the pipe forming a long leg being connected through the vessel.
An apparatus for dissolving water-soluble gas in sea water and isolating it deep in the sea, characterized in that it is equipped with an elongated cylindrical structure which is installed at the surface of the sea, the cylindrical structure which houses a small diameter first vertical pipe and a large diameter second vertical pipe is concentric with respect to the second vertical pipe, the upper end portions of the first and second vertical pipes are connected through a container section which partitions the interior of the cylindrical structure, the first vertical pipe functions as a dissolving pipe which exhibits a gas lift effect, the second vertical pipe functions as a sinking pipe, the vessel functions as a separator for undissolved gas, gas containing water-soluble gas is blown from a blowing nozzle mounted near the lower end of the dissolving pipe which opens into the sea, sea water flows into the lower end of the dissolving pipe due to the gas lift effect of the gas in the dissolving pipe, the water-soluble gas contained in the gas is dissolved in sea water as it rises within the dissolving pipe, undissolved gas which did not dissolve in sea water in the dissolving pipe is separated and accumulated in the vessel, the energy possessed by the flow within the dissolving pipe is conserved as potential energy in the rise of the water level and as energy stored in the form of pressure of the undissolved gas, and the sea water in the vessel in which water-soluble gas is dissolved settles to deep in the sea through the sinking pipe, the lower end of which extends further and opens onto deep in the sea, due to an increase in density caused by the dissolving of water-soluble gas and an increase in the potential energy of the sea water in the vessel and the energy stored in the form of pressure of the undissolved gas;
Dependencies are inferred from the claim text.