Abstract
Abstract Techno-economic performance of post-combustion CO 2 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, CO 2 capture, compression, and branch CO 2 pipeline. Effects of plant scale, operational conditions, part-load efficiency and costs of system components were investigated. The results show that CO 2 capture energy requirement for industrial NGCC-CHPs may be up to 16%. lower than for 400 MWe NGCCs. Load increase to meet CO 2 capture energy requirement also increases the plant efficiency and consequently offsets part of CO 2 capture energy requirement. CO 2 avoidance cost of below 45 €/t CO 2 may be feasible.
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