Pinch combined with exergy analysis for heat exchange network and techno-economic evaluation of coal chemical looping combustion power plant with CO2 capture

A coal chemical looping combustion (CLC) power plant (600 MW) with CO 2 capture was established and validated. The key operation parameters conditions for the process were tested optimized. Heat exchange network (HEN) optimized using combined pinch exergy analysis method matching integrating different levels or grade energy, from flue gas exhaust steam waste heat, in to maximize energy efficiency output. Followed by conducting a techno-economic evaluation distribution which showed that net of CLC (34.8 %, improved 1.9 %) is 2.4 % higher than monoethanolamine (MEA)-based ultra-supercritical (32.4 same ratio (90 %). also provides lower cost electricity (0.088–0.127 $/kWh) less consumption (381 g/kWh), compared MEA-based (0.143 $/kWh, 408 g/kWh). penalty enrichment separation are when traditional plants due intrinsic nature in-suit capture, destruction process, sufficient integration recovery HEN. • HEN CCS CPEA method. Net improves %. Coal emission reduce 6.9 7.2 COE MEA-power $/kWh).