Decompression regeneration system and method for hollow fiber membrane contactor of carbon dioxide enriched absorbent solution

A fiber membrane contactor and carbon dioxide-enriched technology, applied in chemical instruments and methods, through absorption, separation methods, etc., can solve the problems of insignificant consumption reduction, avoid oxidative degradation losses, avoid volatilization losses, and reduce regeneration energy consumption effect
CN101822931AActive Publication Date: 2010-09-08ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2010-09-08

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Abstract

The invention discloses decompression regeneration system and method for a hollow fiber membrane contactor of a carbon dioxide enriched absorbent solution. The method comprises the steps of: heating the carbon dioxide enriched absorbent solution by a heater, and enabling the pressurized carbon dioxide enriched absorbent solution to enter the tube pass of the hollow fiber membrane contactor for regeneration by a booster pump and a liquid flow meter; outputting the obtained barren solution of the absorbent solution after regeneration from the lower end of the tube pass of the hollow fiber membrane contactor; blowing steam by the low temperature generated by a blowing steam generator under the action of a vacuum pump, and feeding the steam from the lower end of the tube pass of the hollow fiber membrane contactor for assisting regeneration; and dewatering the regenerated CO2 by a condenser under the actions of the blowing of the steam with low temperature and the suction of the vacuum pump to obtain the CO2 gas with high concentration. In the invention, the decompression operation is carried out in the membrane contactor for replacing the traditional heating regeneration method, the regeneration energy consumption of the CO2 absorbent solution is reduced, and the problem of high energy consumption of CO2 separation from fire coal and flue gas by using the chemical absorbent method can be solved.
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Description

technical field

[0001] The present invention relates to regenerated CO-enriched 2 The system and method of alkaline absorbent, more specifically, the present invention relates to a decompression regeneration system and method of a hollow fiber membrane contactor in a carbon dioxide-rich absorbent solution. Background technique

[0002] Flue gas CO based on chemical absorption 2 Separation technology is currently the mainstream CO in power station flue gas 2 However, the main reason for its difficulty in large-scale promotion is that the energy consumption of the system operation is too high, especially the regeneration energy consumption of the absorbent rich liquid is huge. Separation of CO by traditional chemical absorption 2 The process adopts the method of steam heating to regenerate the rich liquid and complete the CO 2 The enrichment, and the energy consumption of this part of thermal regeneration accounts for more than 80% of the energy consumption of the whole pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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