Achieving zero/negative-emissions coal-fired power plants using amine-based post-combustion CO2 capture technology and biomass co-combustion

The strengthening carbon mitigation efforts to meet the 1.5 °C target, requires the development of zero/negative CO2 emission technologies to eliminate large direct CO2 emissions from fossil-fuel fired power stations. Amine scrubbing is a dominant technology to capture CO2 from fossil-fuel power stations, but its application in achieving zero/negative emission in power stations is rarely reported. The present study investigates the MEA-based technologies to achieve zero and negative CO2 emission in coal-fired power stations, and their techno-economic performance was evaluated in detail. These zero/negative-emission technologies include 99.7% CO2 capture from flue gas (zero emission), biomass co-combustion with coal integrated with CO2 capture at ratios of 10% biomass/90% CO2 capture and 5% biomass/95% CO2 capture (zero-emission), and 10% biomass/95% CO2 capture for negative-emission power station. Our investigation revealed that these zero/negative-emission technologies are technically and economically vi...