关键词: 碳捕集电站, 热力系统, 参数优化, 粒子群算法, 碳税收

Abstract: CCS technology is the key to develop low-carbon power. This paper took a 600 MW power unit as example to study energy flux and mass flux of the carbon capture system. The coupling way of carbon capture and coal-fired units was proposed. The thermal economy of the conventional power plant and power plant with carbon capture system was calculated. The optimized model of power plant with carbon capture system was established. PSO was used as the solving algorithm of the optimized model. The optimal solution was obtained. Based on the cost of investment of equipment，the models of power generation cost and CO2 emission reduction cost were established. The technical economy of the power plant with carbon capture system was analyzed. The effects of carbon tax and carbon price on the power generation cost and CO2 emission reduction cost was evaluated by using the sensitivity analysis method. The results showed that the thermal efficiency of the power plant with optimized carbon capture system increased by 1.1 percent compared to the conventional system. The economy of the power plant with carbon capture systemwas better than that of the conventional power plant when tax of 1 kg of CO2 was higher than 0.33 yuan.

Key words: carbon capture power plant, thermal power system, parameter optimization, PSO, carbon tax