A thermal-electric co-flooding amine method to capture CO 2 system

Abstract

The invention discloses a thermal-electric co-driven CO2 capturing system adopting an amine method. The system comprises an absorption tower provided with an electrochemical system inside and a desorption tower provided with an electrochemical system inside, wherein both the absorption tower and the desorption tower are connected with heat exchangers. The system is characterized in that the inside electrochemical systems are formed by adding electrodes to the absorption tower and the desorption tower, so that the absorption and desorption processes are promoted, and energy consumption is reduced. The electrochemical systems can efficiently utilize reaction heat which cannot be utilized by the conventional amine method, the desorption temperature can be substantially reduced, and small-temperature-difference cyclic capturing of CO2 is realized. According to the proposed thermal-electric co-driven CO2 capturing process with the amine method, CO2 can be efficiently captured with low energy consumption, and the system has great engineering application value for efficient and low-cost emission reduction of CO2 in power plants and other industries.

Description

technical field [0001] The invention belongs to the field of reaction equipment design, in particular to a thermal-electric co-drive amine method for capturing CO 2 system. Background technique [0002] my country emits about 10 billion tons of CO every year 2 Among them, industries such as power plants are the main sources, and a large amount of emissions have brought about a serious greenhouse effect, which has brought a huge threat to the earth's ecosystem and human living environment. Capture CO 2 It is of great significance to realize sustainable development and improve the quality of human life. The main methods for capturing carbon dioxide include absorption, adsorption, cryogenic capture, membrane separation and chemical looping combustion. Among them, the absorption method can be divided into chemical absorption and physical absorption. The amine method is an absorption method to capture CO 2 One of the most promising methods for industrial application, in thi...

AI Technical Summary

Problems solved by technology

However, batteries capture CO 2 Still in the experimental stage, there is a lack of a systematic theoretical model of flow heat and mass transfer

[0007] In summary, due to various deficiencies, the existing CO 2 The capture system still has a lot of room for development in terms of system design, energy saving, and environmental protection, and it cannot effectively achieve the goals of energy saving and low cost.

At the same time, there are few studies on the coupling of amine method and battery method

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