Prospects of Implementing CO2 Capture and Sequestration (CCS) in the Proposed Supercritical Coal Power Plants in India

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Abstract India is heavily dependent on coal for electricity generation with 60% of the installed capacity was coal fired plants. Many more coal power plants are expected to be built in the next few years and most of them would be super-critical or ultra-super-critical plants. The coal plants are responsible for large emissions of CO2 – a major greenhouse gas (GHG) considered to be responsible for climate change. India being the 3rd largest CO2 emitter in the world, there is a need for exploring various carbon mitigation techniques with ever increasing concerns about climate change. Carbon Capture and Sequestration (CCS) is one such mitigation option wherein CO2 emitted by the power plants and other industries is captured and transported to a storage site where it is isolated from the atmosphere permanently. This study is to understand the economic & environmental impacts of implementing CCS in the Supercritical Coal power plants with the help of Integrated Environment Control Model (IECM-cs). Two technology options, viz. post-combustion CO2 absorption from flue gas and oxy-fuel combustion with CO2 capture, have been analyzed.