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Flue gas carbon dioxide capture and recovery system

A carbon dioxide recovery system technology, which is applied in air quality improvement, chemical instruments and methods, and separation of dispersed particles, can solve the problems of low energy utilization rate and underutilized energy, and achieve the goal of improving energy utilization rate and reducing demand Effect

Active Publication Date: 2017-03-01
CHINA PETROCHEMICAL CORP +2
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In the process of absorption and desorption, many places of energy are not fully utilized, resulting in low energy utilization

Method used

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  • Flue gas carbon dioxide capture and recovery system

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Embodiment Construction

[0131] The flue gas carbon dioxide capture and recovery system according to the present invention will be described in detail below with reference to the accompanying drawings.

[0132] refer to figure 1According to the present invention, the flue gas carbon dioxide capture and recovery system includes: flue gas waste heat recovery heat exchanger 10, absorption tower 11, rich liquid pump 12, absorption tower inter-stage circulation pump 13, absorption tower inter-stage circulation heat exchanger 14, Primary lean-rich liquid heat exchanger 15, rich liquid splitter 16, secondary lean-rich liquid heat exchanger 17, desorption tower 18, boiler 19, flash tank 20, desorption tower bottom steam compressor 21, lean liquid pump 22. Desorption tower interstage circulation heat exchanger 23 and lean liquid cooler 24.

[0133] Absorption tower 11 has: absorption tower tower body 111, is formed with the absorption tower tower chamber 1111 that holds absorbent in advance; Connected to the...

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Abstract

The invention provides a flue gas carbon dioxide capture recovery system which comprises a flue gas waste heat recovery heat exchanger, an absorption tower, a rich liquid pump, an absorption tower interstage circulating pump, an absorption tower interstage circulating heat exchanger, a first-level lean and rich liquid heat exchanger, a rich liquid flow divider, a second-level lean and rich liquid heat exchanger, a desorption tower, a boiling device, a flash distillation tank, a desorption tower bottom vapor compressor, a lean liquid pump, a desorption tower interstage circulating heat exchanger and a lean liquid cooler. According to the flue gas carbon dioxide capture recovery system provided by the invention, seven heat exchanges are carried out, and thus the energy utilization rate of the flue gas carbon dioxide capture recovery system can be improved, and the demand on the external public engineering heat during desorption is reduced.

Description

technical field [0001] The invention relates to the field of carbon dioxide capture and recovery, in particular to a flue gas carbon dioxide capture and recovery system. Background technique [0002] Carbon dioxide is one of the main components of greenhouse gases that cause global warming, contributing 55% to the greenhouse effect. Coal-fired power plants are the largest emitters of carbon dioxide. In addition to the impact of global warming, carbon dioxide can also be used as a chemical raw material, and the captured and purified carbon dioxide can be injected into oil reservoirs in a supercritical state to increase oil recovery. It can be predicted that with the development and improvement of capture technology and the continuous expansion of application scope, carbon dioxide will become an important resource for improving oilfield development effects and enhancing oil recovery in my country. [0003] At present, the carbon dioxide capture and purification process is st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/78B01D53/62
CPCY02A50/20Y02C20/40
Inventor 陆诗建张建李清方赵帅刘海丽张启阳尚明华张媛媛陆胤君张新军孙广领李毅
Owner CHINA PETROCHEMICAL CORP