CN-121971972-A - Marine wind-solar integrated CCUS system

CN121971972ACN 121971972 ACN121971972 ACN 121971972ACN-121971972-A

Abstract

The invention provides an offshore wind and light integrated CCUS system which comprises a mounting platform, an energy supply assembly, a carbon capture assembly and a sealing assembly, wherein the energy supply assembly is arranged on the mounting platform and is used for providing power, the carbon capture assembly is arranged on the mounting platform and is electrically connected with the energy supply assembly, the carbon capture assembly comprises a capture component and a conveying component, the capture component is used for capturing and processing carbon dioxide from ambient air, the conveying component is used for conveying the captured carbon dioxide, and the sealing assembly is connected with the conveying component and is used for injecting and sealing the carbon dioxide into a submarine geological structure. The offshore wind and solar integrated CCUS system realizes efficient capture, transportation and sealing of carbon dioxide through the cooperative work of multiple systems, and simultaneously provides power for the whole system by utilizing offshore renewable energy sources, so that the environmental protection and economy of the system are obviously improved.

Inventors

WEI JINGXUAN
LIU NIU
WANG HUANJUN
Jiao Zengtong
LIU CHANG
Fan Zian
HE ZHONG
SUN BEIQI
GUO DONGFANG

Assignees

中国华能集团清洁能源技术研究院有限公司
华能国际电力股份有限公司上海石洞口第二电厂

Dates

Publication Date: 20260505
Application Date: 20260105

Claims (10)

1. An offshore wind and solar integrated CCUS system, comprising: a mounting platform; the energy supply assembly is arranged on the mounting platform and is used for providing power; The carbon capture assembly is arranged on the mounting platform and is electrically connected with the energy supply assembly, and comprises a capture component and a conveying component, wherein the capture component is used for capturing and treating carbon dioxide from ambient air, and the conveying component is used for conveying the captured carbon dioxide; And the sealing assembly is connected with the conveying component and used for injecting and sealing carbon dioxide into the submarine geological architecture.
2. The offshore wind and solar integrated CCUS system of claim 1, wherein said energy supply assembly comprises a power generation unit and an energy storage unit for balancing power fluctuations of the power generation unit and storing excess electrical energy.
3. The offshore wind and solar integrated CCUS system of claim 2, wherein said power generation unit comprises at least one of a wind power generation unit and a light energy generation unit.
4. An offshore wind and solar integrated CCUS system according to claim 3, characterized in that said energy storage unit is a hydrogen energy based energy storage device or a liquid air energy storage device.
5. The offshore wind and solar integrated CCUS system of any one of claims 1-4, wherein said capturing means comprises an absorption unit for capturing by reacting carbon dioxide in air with a chemical adsorbent and a desorption unit for regenerating said chemical adsorbent enriched with carbon dioxide to release carbon dioxide gas.
6. The offshore wind and solar integrated CCUS system of claim 5, wherein said chemisorber is an amine-based solution and said absorption unit has a conditioning inlet for passing seawater to enhance carbon dioxide absorption using the alkalinity of the seawater.
7. The offshore wind and solar integrated CCUS system of claim 6, wherein said transport assembly comprises a compression liquefaction device coupled to said capture assembly for compressing captured carbon dioxide to a liquid or supercritical state, and a transport conduit for transporting compressed carbon dioxide to said sequestration assembly.
8. The offshore wind and solar integrated CCUS system of claim 7, wherein said sequestration assembly comprises a connection conduit and at least one subsea injection well, said connection conduit connecting said transport assembly and at least one said subsea injection well for injecting carbon dioxide into a subterranean reservoir.
9. The offshore wind and solar integrated CCUS system of claim 8, wherein a control valve is provided on said connecting pipe for preventing backflow of the sequestration medium.
10. The offshore wind and solar integrated CCUS system of claim 9, further comprising a monitoring assembly comprising a plurality of monitoring members coupled to at least one of said capture assembly and said sequestration assembly for monitoring the pressure, temperature and migration status of the collected and/or sequestered carbon dioxide in real time.

Description

Marine wind-solar integrated CCUS system Technical Field The invention relates to the technical field of offshore carbon capture and sequestration, in particular to an offshore wind and solar integrated CCUS system. Background Carbon dioxide is the major greenhouse gas and its large emissions cause serious climate change problems. Carbon dioxide capture utilization and sequestration (CCUS) technology is considered an effective means of emission abatement. Existing onshore carbon capture and sequestration projects face a number of challenges. In the related technology, the traditional carbon trapping technology has the following problems that at an operation end, the traditional carbon trapping technology depends on power supply of a power grid and energy supply of fossil energy, so that the cost is high, the net zero emission is difficult to realize, the occupied area of facilities is large, and at a sealing end, the problems of complex geological conditions, limited site selection of sealing places and the like are faced. Disclosure of Invention The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the invention provides the offshore wind and light integrated CCUS system, which realizes efficient capturing, transportation and sealing of carbon dioxide through the cooperative work of a plurality of systems, and simultaneously provides power for the whole system by utilizing the offshore renewable energy source, thereby remarkably improving the environmental protection and economy of the system. An offshore wind and solar integrated CCUS system according to an embodiment of the invention comprises: a mounting platform; the energy supply assembly is arranged on the mounting platform and is used for providing power; The carbon capture assembly is arranged on the mounting platform and is electrically connected with the energy supply assembly, and comprises a capture component and a conveying component, wherein the capture component is used for capturing and treating carbon dioxide from ambient air, and the conveying component is used for conveying the captured carbon dioxide; And the sealing assembly is connected with the conveying component and used for injecting and sealing carbon dioxide into the submarine geological architecture. The offshore wind and light integrated CCUS system provided by the embodiment of the invention depends on offshore renewable energy sources, so that zero carbon emission is realized. And the carbon dioxide is effectively trapped and sealed, so that the concentration of greenhouse gases in the atmosphere is obviously reduced. The renewable energy sources are utilized to reduce the energy cost and reduce the dependence on traditional fossil energy sources. The low energy consumption design and the high-efficiency transportation technology reduce the operation cost of the system. In some embodiments, the energy supply assembly includes a power generation unit and an energy storage unit for balancing power fluctuations of the power generation unit and storing excess electrical energy. In some embodiments, the power generation unit comprises at least one of a wind power generation unit and a light energy power generation unit. In some embodiments, the energy storage unit is a hydrogen energy-based energy storage device or a liquid air energy storage device. In some embodiments, the capture component includes an absorption unit that utilizes a chemical adsorbent to react with carbon dioxide in the air to effect capture, and a desorption unit that regenerates the chemical adsorbent enriched with carbon dioxide to release carbon dioxide gas. In some embodiments, the chemisorbers are amine-based solutions and the absorption units have a conditioning inlet for passing seawater to enhance carbon dioxide absorption using the alkalinity of the seawater. In some embodiments, the delivery component comprises a compression liquefaction device connected to the capture component for compressing the captured carbon dioxide to a liquid or supercritical state, and a delivery conduit for delivering the compressed carbon dioxide to the sequestration assembly. In some embodiments, the sequestration assembly includes a connecting conduit connecting the delivery member and at least one subsea injection well for injecting carbon dioxide into a subterranean reservoir. In some embodiments, a control valve is provided on the connecting conduit for preventing backflow of the storage medium. In some embodiments, the offshore wind and solar integrated CCUS system of the present embodiments further comprises a monitoring assembly comprising a plurality of monitoring members coupled to at least one of the capture assembly and the sequestration assembly for monitoring the pressure, temperature, and migration status of the collected and/or sequestered carbon dioxide in real time. Drawings FIG. 1 is a schematic diagram of the connectio