Lifecycle Analysis of Coal-fired Power Plants with CCS in China

Abstract

Carbon capture and storage (CCS) is a potential CO₂ emission mitigation technology for coal-fired power plants. In order to assess the mitigation effect, we carried out a comprehensive evaluation of coal-fired power plants with CCS by using the lifecycle analysis (LCA). Total 6 routes of coal-fired power plants with CCS were defined and studied in the paper. The results show that the CO₂ emission of power generation dominates the total lifecycle CO₂ emission; the indirect CO₂ emission induced by coal mining and washing also accounts for a large part of lifecycle emission; CO₂ emission of EOR is much larger than that of aquifer storage, which reduces the CO₂ emission mitigation of CCS.