KR-20260064060-A - CARBON DIXIODE CAPTURE SYSTEM

KR20260064060AKR 20260064060 AKR20260064060 AKR 20260064060AKR-20260064060-A

Abstract

An invention relating to a carbon dioxide capture device is disclosed. The disclosed carbon dioxide capture device is characterized by comprising: an inlet pipe section through which a mixed gas is introduced and passes; a cooling section for cooling the mixed gas passing through the inlet pipe section; a capture chamber section connected to the inlet pipe section and through which the mixed gas is introduced from the inlet pipe section; a dry ice conversion unit section installed in the capture chamber section and which solidifies carbon dioxide among the mixed gas introduced from the inlet pipe section and converts it into dry ice; a vibration generating unit provided in the dry ice conversion unit section and which generates vibration energy to separate the dry ice from the dry ice conversion unit section and collect it in the capture chamber section; and a discharge pipe section connected to the capture chamber section and which discharges the gas excluding carbon dioxide among the mixed gas.

Inventors

이제열
이지현

Assignees

한국전력공사

Dates

Publication Date: 20260507
Application Date: 20241031

Claims (10)

A mixed gas is introduced, and an inlet pipe section through which the mixed gas passes; A cooling unit for cooling the mixed gas passing through the above-mentioned inlet pipe; A collection chamber connected to the inlet pipe section and into which a mixed gas is introduced from the inlet pipe section; A dry ice conversion unit installed in the above-mentioned collection chamber and solidifying carbon dioxide in the mixed gas introduced from the above-mentioned inlet pipe to convert it into dry ice; A vibration generating unit provided in the dry ice conversion unit and generating vibration energy to separate the dry ice from the dry ice conversion unit and collect it in the collection chamber; and A carbon dioxide capture device characterized by including: a discharge pipe connected to the above-mentioned capture chamber and discharging gas excluding carbon dioxide from the mixed gas.
In Article 1, The above cooling unit is, A cryogenic cooling unit equipped with a cryogenic refrigerant; and A carbon dioxide capture device characterized by including a heat sink section that is in contact with the above-mentioned cryogenic cooling section and cools the mixed gas passing through the above-mentioned inlet pipe section.
In Paragraph 2, A carbon dioxide capture device characterized by the heat sink portion surrounding the outer side of the inlet pipe portion.
In Paragraph 2, The above dry ice conversion unit is, A dry ice conversion unit installed in the above-mentioned collection chamber, which solidifies carbon dioxide in the mixed gas introduced into the above-mentioned collection chamber into dry ice and collects the dry ice; and A carbon dioxide capture device characterized by including a thermal link unit that connects the dry ice converter and the cryogenic cooling unit and cools the dry ice converter.
In Paragraph 4, The above-mentioned dry ice converter is a carbon dioxide capture device characterized by having a gold-plated surface.
In Paragraph 4, The above dry ice converter is, A dry ice conversion cooling unit installed in the above-mentioned collection chamber and connected to the above-mentioned thermal link unit, which cools the mixed gas introduced into the above-mentioned collection chamber and solidifies carbon dioxide in the mixed gas to convert it into dry ice; and A carbon dioxide capture device characterized by including: a dry ice conversion cooling unit connected to the dry ice conversion cooling unit, cooled by the dry ice conversion cooling unit, and a dry ice conversion spacing unit that captures dry ice.
In Paragraph 6, A carbon dioxide capture device characterized in that the above dry ice conversion spacing section is formed in a shape that widens as it moves away from the above dry ice conversion cooling section.
In Paragraph 6, The above vibration generating unit is, A piezoelectric element unit coupled to the dry ice converter and generating ultrasonic vibration energy to separate dry ice from the dry ice converter; and A carbon dioxide capture device characterized by including a high-frequency generator connected to the piezoelectric element and applying a high-frequency electrical signal to the piezoelectric element to cause the piezoelectric element to generate ultrasonic vibration energy.
In Paragraph 8, The above cryogenic cooling unit is, A cryogenic cooler equipped with a cryogenic refrigerant; A cooling pipe connected to the above-mentioned cryogenic cooler, wherein the heat sink portion forms a spiral shape and wraps around the outside, and cools the heat sink portion; and A carbon dioxide capture device characterized by including a cooling adapter that is connected to the cooling pipe and fixes the thermal link portion to the cooling pipe.
In Paragraph 2, The above-mentioned collection chamber is, A collection chamber housing connected to the inlet pipe section and the discharge pipe section, and having the dry ice conversion unit section installed therein; and A carbon dioxide capture device characterized by including a capture case that is detachably coupled to the above-mentioned capture chamber housing and captures dry ice.

Description

Carbon Dioxide Capture System The present invention relates to a carbon dioxide capture device, and more specifically, to a carbon dioxide capture device that can not only capture carbon dioxide economically by saving energy, but also smoothly capture carbon dioxide in a dry ice state without clogging the discharge. Generally, technologies for reducing and mitigating carbon dioxide emissions include energy conservation, high-efficiency energy utilization technologies, the use of non-fossil fuels such as new and clean energy, conversion technologies between renewable and fossil fuels, carbon dioxide capture and sequestration (CCS) technologies, and ecological or biological treatment technologies such as forest carbon sinks. Among these, CCS technology refers to all technologies that capture, recover, and sequester carbon dioxide generated during the combustion or processing of fossil fuels used to generate energy, without releasing it into the atmosphere. Among CCS technologies, CO2 capture technology (CCS) is a technology that captures CO2 generated during the combustion process of fossil fuels with high purity, such as exhaust gases from industrial plants like thermal power plants, the steel industry, the cement industry, the petrochemical industry, ship propulsion, and generator engines, and isolates or utilizes it. There are various methods, including wet capture technology, dry capture technology, membrane capture technology, and cold energy capture technology. Among these, cryogenic CO2 capture technology is a technique that cools exhaust gas to low temperatures to separate only the CO2 within the exhaust gas into a liquid (liquefied carbon dioxide) or solid (dry ice) form. However, conventional CO2 capture devices using CCS technology have a problem in that as the inflow of mixed gas continues, dry ice generated inside the device accumulates, narrowing the internal space and making it difficult to collect the dry ice, and as the amount of dry ice increases, there is a risk that the exhaust port through which the mixed gas is discharged will become blocked. Therefore, there is a need to improve this. The background technology for the present invention is disclosed in Korean Registered Patent Publication No. 10-1924288 (Title of invention: System utilizing carbon dioxide of flue gas captured by the cold heat of liquefied natural gas, Registration date: Nov. 26, 2018). FIG. 1 is a schematic diagram showing a carbon dioxide capture device according to one embodiment of the present invention. FIG. 2 is a cross-sectional view of the heat sink portion of a carbon dioxide capture device according to one embodiment of the present invention. FIG. 3 is a cross-sectional view of a key part of a carbon dioxide capture device according to one embodiment of the present invention. Figure 4 is an enlarged view of the main part of Figure 3. FIG. 5 is a diagram showing dry ice being collected in the collection chamber by the operation of the vibration generating part of a carbon dioxide collection device according to one embodiment of the present invention. Figure 6 is an enlarged view of the main part of Figure 5. Hereinafter, an embodiment of a carbon dioxide capture device according to the present invention will be described with reference to the contents described in the attached drawings. However, the present invention is not limited or restricted by exemplary embodiments. In this process, the thickness of lines or the size of components depicted in the drawings may be exaggerated for convenience. Furthermore, the terms described below are defined considering their functions in the present invention, and these may vary depending on the intentions or conventions of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification. Furthermore, in this specification, when a part is described as being “connected (or joined)” to another part, this includes not only cases where they are “directly connected (or joined)” but also cases where they are “indirectly connected (or joined)” with other members interposed between them. In this specification, when a part is described as “comprising (or having) a certain component,” this means that, unless specifically stated otherwise, it does not exclude other components but may additionally “comprising (or having)” other components. The purpose and effects of the present invention may be naturally understood or become clearer through the following description, and the purpose and effects of the present invention are not limited solely to the description below. Furthermore, in describing the present invention, if it is determined that a description of known technology related to the present invention may unnecessarily obscure the essence of the invention, such detailed description will be omitted. FIG. 1 is a schematic diagram showing a carbon dioxide capture device according to an embodiment of the present invention, FIG