Abstract
Amine absorption method which is used for removing CO2 from coal-fired power plant flue gas has the high energy consumption and degradation rate, strong corrosion. In view of these defects and flue gas having low CO2 partial pressure, a new organic amine absorbent whose saturated absorption capacity can reach to 47.447.4L CO2/Lamine has been developed. Compared with MEA solution, its saturated absorption capacity has been increased by 29.1%, and the regeneration rate increased by more than 80%. The CO2 capture process flow has been analyzed, and ‘absorption heat pump +MVR heat pump’ double heat pump coupled low energy consumption CO2 capture system has been developed. Compared with traditional MEA technology, this system can save 38.32% energy, and its water saving rate can reach to 63%.
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