Post-combustion CO2 capture from part-load industrial NGCCCHPs: Selected results

AbstractTechno-economic performance of post-combustion CO2 capture from industrial Natural Gas Combined Cycle (NGCC) Combined Heat and Power plants (CHPs) of scales from 50 MWe to 200 MWe were compared with large-scale (400 MWe) NGCC for short-term (2010) future. Four components were included in the system boundaries: NGCC, CO2 capture, compression, and branch CO2 pipeline. Effects of plant scale, operational conditions, part-load efficiency and costs of system components were investigated.The results show that CO2 capture energy requirement for industrial NGCC-CHPs may be up to 16%. lower than for 400 MWe NGCCs. Load increase to meet CO2 capture energy requirement also increases the plant efficiency and consequently offsets part of CO2 capture energy requirement. CO2 avoidance cost of below 45 €/t CO2 may be feasible