Study on Mechanism of CO_2 Capture Process and its Integration with Power Generation Systems

Calculation formulae for regeneration energy consumption of a CO2 capture system were derived,while the influence of absorbent property on the regeneration energy consumption analyzed,after which corresponding regeneration energy consumptions were calculated under different mass fractions of absorbent.Taking the N600-24.2/566/566 power unit as an example,a number of CO2 capture schemes were proposed based on integrated modes of solar-coal hybrid power generation system,in which case relevant thermo-economic indexes were calculated and compared using heat balance method,such as the heat consumption rate,the power generation standard coal consumption and the thermal efficiency,etc.Results show that the scheme 5 with application of solar energy is found to be the most economical one for its lowest heat consumption rate and lowest power generation standard coal consumption,under conditions of design radiation intensity and constant main steam mass flow.