JP2003126681A - Carbon dioxide as energy carrier and use of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that, increase of from an environmental aspect such as a carbon dioxide problem, it is required to reduce the difference between the maximum generation and ordinary generation in the electricity generation. SOLUTION: Carbon dioxide is changed to dry ice as an energy carrier for supplying midnight or surplus electricity. The dry ice is bumped and sublimated in a freezing medium to produce pressure gas, which is used for power generation by a gas turbine or a compressed gas motor.

Description

Detailed Description of the Invention

[Technical field to which the invention belongs] Technical field related to environment and energy saving by integrating all known technologies

[Prior Art] The amount of power generation is mainly at the time of extreme heat and shows the maximum value at the time of full rotation of the air conditioner. Until now, the amount of power generation was increased according to the required amount, and there was no problem such as power failure. However, due to the IT revolution, the electric power for cooling the computer's hard equipment will increase the amount of regular electric power, so it is necessary to add more generators in the future, but it is difficult to decide the installation location for nuclear power generation, oil, natural gas. Power generation suffers from increased carbon dioxide emissions.

[PROBLEMS TO BE SOLVED BY THE INVENTION] The only problem is to reduce the difference between the normal power generation amount and the maximum power generation amount. However, even if solar power generation is personally useful or provides a national subsidy today. It takes time to spread the price, and even with a co-generator, it has a considerable amount of carbon dioxide emissions.

[Means for Solving the Problem] If an energy carrier is made by using low-cost late-night power or surplus power that produces a minimum amount of power generation, and the energy can be converted into daytime power generation energy, it is an ideal solution. There is an example in which compressed air is already stored in a salt dome and used for power generation in the daytime, but this is not common due to problems with the storage space. INDUSTRIAL APPLICABILITY The present invention can produce an energy carrier that can be moved, has a small volume, and can be easily stored with a small amount of electric power, and can provide it as power generation energy at any place regardless of daytime and nighttime.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. Figure 1 is the corner of the known liquefied carbon dioxide production machine and dry ice production machine.
Is a source gas tank, B is a gas holder, C is a washing machine,
D is a carbon dioxide compressor, E is a deodorizer, F is a dehumidifier, G is a carbon dioxide liquefier with a refrigerator, H is a liquefied carbon dioxide storage tank, I is a dry ice production device, and J is a dry ice press. Machine, K is solidified dry ice, 2 in the figure is a dry ice vaporizer, pressurized carbon dioxide motor and generator. L is a dry ice vaporizer containing a cryogen, and N is a tank for pressurized carbon dioxide with a pressure regulator. O is a generator using a pressurized gas motor similar to a gas turbine or a compressed air motor, and P is a gas recovery tank. M is a supercooling prevention device that uses gas or antifreeze as a medium

[Example] Carbon dioxide was liquefied by pressure cooling at a known liquefied carbon dioxide production machine C-H in the known liquefied carbon dioxide production machine from midnight to surplus power, and then jetted into the dry ice production machines I to J. The solidified product converted to dry ice is used as an energy carrier, and if necessary, it is sublimated in a freezing agent such as alcohol or acetone of L in FIG. 2 to make a pressurized gas, and the gas is adjusted through the N gas tank of FIG. The energy carrier of carbon dioxide, which is characterized by converting the rotational energy of a gas motor similar to a compressed air motor such as a gas turbine of O of FIG. 2 or a rotary vane type or a radial piston type of FIG. Is. This exhaust gas can be recovered and the low temperature of L in the cryogen tank can be returned to the refrigerator of G of FIG.

[Brief description of drawings]

Figure 1 is a side view of a liquefied carbon dioxide production machine and a dry ice production machine. Figure 2 is a side view of the dry ice vaporizer, pressurized carbon dioxide gas tank, and generator using compressed gas.

[Explanation of symbols]

A is a raw material gas tank, B is a gas holder, C is a washing machine, D is a carbon dioxide gas compressor, E is a deodorizer, F is a dehumidifier, and G is a dehumidifier.
Is a liquefied carbon dioxide gas liquefier equipped with a refrigerator H is a liquefied carbon dioxide gas storage tank, I is a dry ice production device, J is a dry ice press machine, K is solidified dry ice, L is a dry ice vaporizer, and N is a control device. A tank for pressurized carbon dioxide gas with a pressure valve, O is a generator using a gas turbine or a pressurized gas motor similar to a compressed air motor, P is a gas recovery tank M is a supercooling prevention device using gas or antifreeze as a medium.

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[Procedure amendment]

[Submission date] January 7, 2002 (2002.1.7)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a side view of a liquefied carbon dioxide production machine and a dry ice production machine.

FIG. 2 is a side view of a dry ice vaporizer, a pressurized carbon dioxide gas tank, and a compressed gas generator.

[Explanation of Codes] A is a tank for raw material gas, B is a gas holder, C is a washing machine, D is a carbon dioxide gas compressor, E is a deodorizer, F is a dehumidifier, and G is a dehumidifier.
Is a liquefied carbon dioxide liquefier equipped with a refrigerator. H is a liquefied carbon dioxide storage tank, I is a dry ice production device, J is a dry ice press machine, K is solidified dry ice, L is a dry ice vaporizer, and N is a controller. A tank for pressurized carbon dioxide with a pressure valve, O is a generator with a pressurized gas motor similar to a gas turbine or a compressed air motor, P is a gas recovery tank, and M is a supercooling prevention device using gas or antifreeze as a medium.

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

Claims (3)

[Claims] 1. Carbon dioxide is pressurized and cooled from midnight to surplus power to be liquefied, and then converted to dry ice and solidified to obtain an energy carrier, 2. If necessary, in a cryogen such as alcohol or acetone, it is sublimated by bumping to make a pressurized gas, and the pressure is adjusted via a gas tank. 3. A method of using carbon dioxide as an energy carrier, characterized in that the rotational energy of a gas turbine or a gas motor similar to a compressed air motor is converted into power generation energy by the pressurized gas fed.