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System for trapping carbon dioxide in flue gas of coal-fired power plant and corresponding treatment method

A technology for carbon dioxide and coal-fired power plants, which is applied in the directions of direct carbon dioxide emission reduction, indirect carbon dioxide emission reduction, chemical instruments and methods, etc., can solve the problems of restricting the promotion and application of carbon dioxide emission reduction technology in coal-fired power plants, and achieves reduction of losses and emissions. , the effect of reducing energy consumption

Inactive Publication Date: 2010-06-02
CPI YUANDA ENVIRONMENTAL PROTECTION ENG
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Problems solved by technology

However, because there is no commercial coal-fired power plant flue gas carbon dioxide resource utilization technology, the popularization and application of carbon dioxide emission reduction technology in coal-fired power plants is limited.

Method used

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  • System for trapping carbon dioxide in flue gas of coal-fired power plant and corresponding treatment method
  • System for trapping carbon dioxide in flue gas of coal-fired power plant and corresponding treatment method
  • System for trapping carbon dioxide in flue gas of coal-fired power plant and corresponding treatment method

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Embodiment Construction

[0024] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0025] Such as figure 1 As shown, the carbon dioxide capture system in the flue gas of a coal-fired power plant of the present invention includes an absorption tower 1 and a regeneration tower 4, a regeneration gas condenser 2, a lean-rich liquid heat exchanger 3, a carbon dioxide separator 6 and a carbon dioxide compressor;

[0026] The flue gas outlet of the coal-fired power plant is boosted by the induced draft fan and connected to the bottom of the absorption tower 1. The flue gas moves from bottom to top and forms countercurrent contact with the ethanolamine solution for absorbing carbon dioxide that enters the tower from the upper part of the absorption tower 1. ...

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Abstract

The invention discloses a system for trapping carbon dioxide in flue gas of coal-fired power plant, comprising an absorption tower and a regenerating tower and also comprising a regenerated gas condenser, a poor-rich liquid heat exchanger, a carbon dioxide separator and a carbon dioxide compressor. The invention also discloses a method for trapping and utilizing carbon dioxide in flue gas of coal-fired power plant. In the invention, by coordinate design of the absorption tower and regenerating tower, massive carbon dioxide gas exhausted by boiler of coal-fired power plant can be trapped, and the emission of greenhouse gas is reduced, thus protecting the environment; and in the disclosed method, the trapped carbon dioxide gas directly enters the process flow for preparing soda ash and ammonium chloride by combination system, thus carbon dioxide gas can be timely utilized, the whole production process is optimized, and consumption of carbon dioxide gas is reduced.

Description

technical field [0001] The invention relates to the field of flue gas purification and treatment, in particular to a system for capturing carbon dioxide in the flue gas of a coal-fired power plant, and also relates to a method for capturing and treating carbon dioxide in the flue gas of a coal-fired power plant. Background technique [0002] The rapid increase of carbon dioxide emissions will bring about drastic changes in the climate and ecosystem and the reduction of drinking water due to the greenhouse effect. At the same time, it will also cause harm such as sea level rise, land reduction and average temperature rise. Carbon dioxide emissions account for about half of the total industrial emissions. Therefore, it is extremely urgent to control the carbon dioxide emissions of coal-fired power plants. [0003] At present, the methods for separating and recovering carbon dioxide in flue gas mainly include absorption separation, adsorption separation, membrane separation, lo...

Claims

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Application Information

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IPC IPC(8): B01D53/78C01B31/20B01D53/96F23J15/04C01B32/50
CPCY02E20/32Y02E20/34Y02P20/151
Inventor 杜云贵隋建才张金伦唐小健喻江涛李紫龙秦福初刘艳荣
Owner CPI YUANDA ENVIRONMENTAL PROTECTION ENG
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