Comparative life cycle environmental assessment of CCS technologies

摘要: Abstract Hybrid life cycle assessment is used to assess and compare the environmental impacts of electricity generation from coal natural gas with various carbon capture storage (CCS) technologies consisting post-combustion, pre-combustion or oxyfuel capture; pipeline CO2 transport geological storage. The systems a efficiency 85–96% decrease net greenhouse emission by 64–78% depending on technology used. Calculation other shows significant trade-offs fresh-water eutrophication toxicity potentials. Human impact increases 40–75%, terrestrial ecotoxicity 60–120%, freshwater 60–200% for different technologies. There two- four-fold increase in potential post-combustion approach. 40–80% 50–90% power plant. approach mainly depends energy demand air separation unit, giving an potentials 35–70% 60–105% system. Most CCS due penalty infrastructure development chain.