Power station system and method for coupling temperature swing adsorption carbon capture

A technology of temperature-swing adsorption and carbon capture, which is applied in the direction of combustion methods, separation methods, chemical instruments and methods, etc., can solve the problems of consumption of net efficiency of power generation, high cost of absorbents, and easy to be corroded, so as to achieve high practicability, energy The effect of maximizing utilization

Pending Publication Date: 2021-01-05
XI AN JIAOTONG UNIV
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However, this kind of power station system is accompanied by various problems such as flue gas carbon capture consumes net po...

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  • Power station system and method for coupling temperature swing adsorption carbon capture

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[0060] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, only a part of the embodiments of the present invention, not all the embodiments, and are not intended to limit the present invention.

[0061] The inventors found that the current power station systems that use supercritical carbon dioxide cycle power generation basically adopt the chemical absorption method for carbon capture, that is, the alcohol amine decarbonization process based on MEA. In the current technical scheme, it is necessary to extract about Working medium carbon dioxide with a temperature of 80bar at about 210°C is used as a heat source for the boiling solvent in the chemical absorption method, but thi...

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Abstract

The invention provides a power station system for coupling temperature swing adsorption carbon capture and a method for coupling temperature swing adsorption carbon capture, and relates to the technical field of supercritical carbon dioxide cycle power generation. The power station system adopts supercritical carbon dioxide cycle power generation, and comprises a coal-fired boiler body, a flue, acarbon capture adsorption tower, a power generation turbine system, a working medium compression system and a product gas recycling system, wherein the coal-fired boiler body generates flue gas containing carbon dioxide; the flue gas is discharged through the flue; the carbon capture adsorption tower captures carbon dioxide in the flue gas through a physical temperature swing adsorption method; the flue gas of a medium-temperature section is used as a first desorption heat source; and high-temperature side outlet working medium exhaust gas of a high-temperature heat regenerator is used as a second desorption heat source. According to the power station system and method for coupling temperature swing adsorption carbon capture provided by the invention, through the physical temperature swingadsorption method, low-grade heat is fully utilized, the overall energy utilization rate is increased, the problem that the exhaust gas temperature is too high can be effectively solved, and emissionof the carbon dioxide is reduced on a large scale.

Description

Technical field [0001] The invention relates to the technical field of supercritical carbon dioxide cycle power generation, in particular to a power station system coupled with temperature swing adsorption carbon capture and a method coupled with temperature swing adsorption carbon capture. Background technique [0002] Global warming is a global strategic issue currently facing all countries. China's primary energy source is mainly coal. At the end of 2014, coal power units accounted for about 62% of the power generation units. In 2013, China's emissions of carbon dioxide, sulfur dioxide, nitrogen oxides and soot all ranked first in the world. Among them, the emissions caused by coal-fired boilers The proportion is extremely high, so it is very important to optimize energy conservation and emission reduction for coal-fired boilers. Coal-fired power generation can no longer be an environmentally polluting power generation mode, and carbon dioxide emissions must be reduced on...

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Application Information

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IPC IPC(8): F23J15/02B01D53/04F23L15/00
CPCB01D53/0462B01D2257/504F23J15/02F23J2215/50F23L15/00Y02E20/32Y02E20/34Y02C20/40
Inventor 王长安金丽艳王超伟周磊高昕玥车得福
Owner XI AN JIAOTONG UNIV
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