INTEGRATED DESIGN AND DYNAMIC OPERATION OF SOLVENT-BASED PCC PROCESSES

摘要

Despite notable developments in solvent-based Post-combustion Carbon Capture (PCC) processes, the implementation of this technology in a power plant still burdens notable energy penalty mainly due to solvent regeneration. The energy penalty though varies by the type of power plant and by different techno-economic studies, is estimated to be above 20% (Khalilpour and Abbas, 2011). This results in serious reduction in power plant load. One of the ways for power plants to reduce the profit loss, due to reduction of power load, is to schedule their carbon capture process. Considering the fact that the legal carbon capture requirements will be annual-based, a power plant would be able o choose to operate its PCC process in full capacity when the market electricity price is not high (e.g. off-peak). Contrarily, at a time with high electricity demand, the PCC process can be ramped down (or maybe shut-down) to allow maximum power generation. This strategy is very important for societies with liberated electricity markets.