Carbon dioxide management system and method

Abstract

A carbon dioxide management system and method are disclosed. The carbon dioxide management system, according to one embodiment of the present invention, comprises: a carbon dioxide gas line which is connected to an upper part of a carbon dioxide storage tank and via which gaseous carbon dioxide travels; a carbon dioxide liquid line which is connected to the carbon dioxide storage tank and via which liquid carbon dioxide travels; a line combining unit to which the carbon dioxide gas line and the carbon dioxide liquid line are connected, so that the gaseous carbon dioxide and the liquid carbon dioxide are mixed; and a carbon dioxide liquefier which is connected from the line combining unit and which is for liquefying the gaseous carbon dioxide.

Description

technical field [0001] The present application relates to a carbon dioxide management system and method, more specifically, to a carbon dioxide management that does not discharge the gaseous carbon dioxide produced in the carbon dioxide storage tank into the atmosphere, but returns the liquefied carbon dioxide to the carbon dioxide storage tank systems and methods. Background technique [0002] Carbon dioxide accounts for about 70% of the global warming gas. In order to capture and sequester carbon dioxide from thermal power plants, which are a large source, many efforts are being made to compensate for pressure in marine aquifers, seawater formations, gas and crude oil production. The study of gas or storage space after the production of gas and crude oil. [0003] In order to move the liquid carbon dioxide to the corresponding area, it is expected that pipelines and carbon dioxide transmission lines will be used. Among them, the carbon dioxide transmission line is consid...

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Problems solved by technology

However, there are disadvantages such as unnecessary reheating at the time of shipment of liquid carbon dioxide, and in the case of pipelines, the time for loading into the ship becomes very long, and in order to recycle the non-adsorbed carbon dioxide generated at this time, cost a lot

[0020] On the other hand, when the storage pressure of carbon dioxide in the carbon dioxide storage tank is low, the amount of evaporated gas increases relatively, and the ratio of non-condensable gas increases, making it difficult to liquefy it with liquefaction equipment.

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