Life Cycle Environmental Impacts Assessment of Post-Combustion Carbon Capture for Natural Gas Combined Cycle Power Plant in Iraq, Considering Grassroots and Retrofit Design

In this work, the Life Cycle Assessment (LCA) methodology is used to examine implications of CO2 capture from a natural gas combined cycle power plant with post-combustion carbon (NGCC-CCS) in Iraq, taking into account two different design scenarios. first scenario (retrofit), unit considered as an end pipe technology that can be linked existing plant. The second considers grassroots design, which new equipped needs constructed. LCA carried out based on impact assessment (LCIA) methodologies ReCipe 2016 Midpoint (H), TRACI 2.1, and IMPACT 2002+ investigate whether chosen LCIA method influences analysis for decision support process development. results three categories applied both scenarios reveal 28% reduction Global Warming Potentials (GWPs) 14% 17% increase Particulate Matter Formation Potential (PMFP) Acidification (AP) potential scenario, respectively. Finally, uncertainty performed more accurately reflect influence uncertain factors statistical significance environmental evaluation research, indicating these uncertainties may significantly affect ultimate decision.