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LNG cold energy utilization, fresh water co-production and carbon dioxide storage device

A technology of carbon dioxide and fresh water, applied in chilled water/sewage treatment, inorganic chemistry, nitrogen compounds, etc., can solve problems such as inability to efficiently utilize LNG cold energy, inability to simultaneously co-produce carbon dioxide sequestration, etc., to achieve high energy utilization and energy utilization The effect of rate energy and environmental protection

Active Publication Date: 2021-01-05
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0006] The purpose of the present invention is to provide a LNG cold energy utilization co-production fresh water and carbon dioxide sequestration device, to at least solve the problem that some coastal gas-fired power plants using LNG cannot efficiently utilize the cold energy produced when LNG is vaporized, and cannot be simultaneously connected One of the technical problems of producing fresh water and realizing the sequestration of carbon dioxide in flue gas

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  • LNG cold energy utilization, fresh water co-production and carbon dioxide storage device

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Embodiment Construction

[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0030] Such as figure ...

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Abstract

The invention relates to the technical field of LNG cold energy utilization and hydrate technology application in an LNG receiving station, and discloses an LNG cold energy utilization, fresh water co-production and carbon dioxide storage device which comprises an LNG cooling system, and further comprises a flue gas generation system, a sea salt water desalination system and a hydrate generator. The LNG cooling system is used for providing cooling capacity for the sea salt water desalination system and the flue gas generation system. The flue gas generation system is used for conveying flue gas generated after LNG combustion into the hydrate generator. The sea salt water desalination system is used for conveying sea salt water into the hydrate generator, mixing the flue gas with the sea salt water to generate a mixture of CO2 hydrate, N2 and salt and separating and decomposing the mixture to obtain fresh water. The device has the advantages of realizing efficient utilization of LNG cold energy of a gas power plant, seawater desalination and CO2 storage.

Description

technical field [0001] The invention relates to the technical field of LNG cold energy utilization and hydrate technology application in an LNG receiving station, in particular to an LNG cold energy utilization co-production fresh water and carbon dioxide sequestration device. Background technique [0002] LNG (liquefied natural gas) is a low-temperature liquid at -162°C under normal pressure. When each ton of LNG is vaporized, it can generate about 240kWh (kilowatt-hour) of cold energy. Reasonable use of this part of cold energy can produce considerable economic benefits. Specifically, cold energy can be used in fields such as seawater desalination, air separation, and power generation. [0003] Seawater desalination is the use of seawater desalination to produce fresh water. It is an open source incremental technology to realize the utilization of water resources. It can increase the total amount of fresh water and is not affected by time, space and climate. It can ensure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C01B32/50C01B21/04B01D53/78B01D53/62C02F103/08
CPCC02F1/00C02F1/22C01B32/50B01D53/002B01D53/78B01D53/62C01B21/0494C02F2103/08B01D2257/504B01D2258/0283
Inventor 薛倩王晓霖李遵照刘名瑞赵巍李雪
Owner CHINA PETROLEUM & CHEM CORP