Assessment of selected CCS technologies in electricity and synthetic fuel production for CO2 mitigation in South Africa

摘要: One of the actions proposed to reduce greenhouse gas (GHG) emissions in South Africa (SA) is install carbon capture and storage (CCS) at new energy-producing plants. This paper aims evaluate costs GHG implementing CCS a coal-fired integrated gasification combined cycle (IGCC) power plant, coal fired ultra-supercritical (USC) synthetic fuel coal-to-liquid (CTL) plant gas-to-liquid (GTL) for SA. The approach comparing these applications based on combination techno-economic analysis with life-cycle assessment. As expected, generating plants are higher than without all case studies. GHG-abatement 2040 shown be lowest IGCC 173 ZAR07/t CO2eq, followed by USC 227 CO2eq. These considerably CTL GTL results show that from an economic perspective, might attractive option CO2 mitigation SA especially electricity sector. However, prerequisite implementation technology reaches commercial scale investigated options socially accepted.