Process for producing carbon dioxide clathrate
First Claim
1. A process for producing a carbon dioxide clathrate which comprises:
- the step of disposing a water portion comprising an aqueous solution of water or seawater and a carbon dioxide portion comprising carbon dioxide in a reactor so that these portions may come in contact with each other with the interposition of an interface, and positioning, in the water portion, a lug of which the temperature is controllable;
the step of adjusting the pressure in the reactor to 13 atm or more and the temperature of the aqueous solution in the water portion to a level of more than 5°
C. and not greater than 10°
C., and adjusting an interface temperature between the water portion and the carbon dioxide portion to a level of more than 10°
C. and not greater than 15°
C.;
the step of maintaining the temperature of the lug at a level of more than 0°
C. and not greater than 5°
C. to form, away from said interface, crystallized carbon dioxide clathrate on the lug; and
the step of heating the lug to a temperature of more than 10°
C. and not greater than 30°
C. to separate and drop the crystallized carbon dioxide clathrate from the lug.
1 Assignment
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Accused Products
Abstract
A carbon dioxide clathrate having a lump diameter enough to precipitate on a desired abyssal position of the sea without being drifted by a seawater flow of the abyss can be produced by bringing an aqueous solution into contact with carbon dioxide with the interposition of an interface in a reactor and retaining this contact; adjusting the pressure in the reactor to 13 atm or more, the temperature of the aqueous solution to a level of more than 5° C. to 10° C., the temperature of the interface to a level of more than 10° C. to 15° C. and the temperature of a lug inserted into the aqueous solution to a level of more than 0° C. to 5° C.; producing/growing the carbon dioxide clathrate on the lug; and then heating the lug to a temperature of more than 10° C. to 30° C. to separate/drop the carbon dioxide clathrate therefrom.
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Citations
6 Claims
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1. A process for producing a carbon dioxide clathrate which comprises:
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the step of disposing a water portion comprising an aqueous solution of water or seawater and a carbon dioxide portion comprising carbon dioxide in a reactor so that these portions may come in contact with each other with the interposition of an interface, and positioning, in the water portion, a lug of which the temperature is controllable; the step of adjusting the pressure in the reactor to 13 atm or more and the temperature of the aqueous solution in the water portion to a level of more than 5°
C. and not greater than 10°
C., and adjusting an interface temperature between the water portion and the carbon dioxide portion to a level of more than 10°
C. and not greater than 15°
C.;the step of maintaining the temperature of the lug at a level of more than 0°
C. and not greater than 5°
C. to form, away from said interface, crystallized carbon dioxide clathrate on the lug; andthe step of heating the lug to a temperature of more than 10°
C. and not greater than 30°
C. to separate and drop the crystallized carbon dioxide clathrate from the lug. - View Dependent Claims (2)
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3. A process of producing a carbon dioxide clathrate which comprises:
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the step of disposing a water portion comprising an aqueous solution of water or seawater and a carbon dioxide portion comprising carbon dioxide in a reactor so that these portions may come in contact with each other with the interposition of an interface; the step of adjusting the pressure in the reactor to 13 atm or more and the temperature of the aqueous solution in the water portion to a level of more than 5°
C. and not greater than 10°
C., and adjusting an interface temperature between the water portion and the carbon dioxide portion to a level of more than 10°
C. and not greater than 15°
C.;the step of positioning, in the water portion, a lug of which the temperature is controllable; the step of maintaining the temperature of the lug at a level of more than 0°
C. and not greater than 5°
C. to form, away from said interface, crystallized carbon dioxide clathrate on the lug; andthe step of heating the lug to a temperature of more than 10°
C. and not greater than 30°
C. to separate and drop the crystallized carbon dioxide clathrate from the lug. - View Dependent Claims (4)
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5. An apparatus for producing a carbon dioxide clathrate, said apparatus comprising:
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a reactor means, including a water portion comprising an aqueous solution of water or seawater and a carbon dioxide portion comprising carbon dioxide, for contacting said portions at an interface, a temperature controlled lug disposed in said water portion of said reactor means away from said interface; means for adjusting the pressure in the reactor means to 13 atm or more and the temperature of the aqueous solution in the water portion to a level of more than 5°
C. and not greater than 10°
C., and for adjusting an interface temperature between the water portion and the carbon dioxide portion to a level of more than 10°
C. and not greater than 15°
C.; andmeans for maintaining the temperature of the lug at a level of more than 0°
C. and not greater than 5°
C. for a period of time to form thereby forming crystallized carbon dioxide clathrate on the lug and for heating the lug to a temperature of more than 10°
C. and not greater than 30°
C. to separate and drop the crystallized carbon dioxide clathrate from the lug. - View Dependent Claims (6)
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Specification