화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2021년 가을 (10/27 ~ 10/29, 광주 김대중컨벤션센터)
권호 27권 2호, p.1301
발표분야 WISET 2021 여대학(원)생 공학연구팀제 지원사업 심화과정 결과발표대회(여성위원회)
제목 Impact of CO2 capture and methanation in coal power plants on global climate change
초록 In 2019, 37% of global electricity demand was produced by coal-fired power plants. The International Energy Agency (IEA) estimates that coal-fired power plants will account for 22% of electricity demand in 2040 in the Stated Policies Scenario (SPS). Renewable energy (solar, wind power, etc.) greatly depends on time and season, thus it is necessary to operate coal-fired power plants with the baseload power. In order to realize Korea's pledge of carbon neutrality in 2050, clean coal-fired power plants implemented with CO2 capture, utilization, and storage (CCUS)should be considered.

This study performed a techno-economic assessment of 500 MWe coal-fired power plants with 10% of the CO2 methanation and 80% of the geological sequestration for CCUS. H2 required for CO2 methanation was produced from a water alkaline electrolysis using intermittent surplus renewable electricity. In addition, when CCUS technology was applied to coal-fired power plants worldwide, the effects on atmospheric CO2 concentration and global surface temperature were predicted using the global carbon cycle.
저자 김세미, 천지호, 정지윤, 정평곤, 이동은, 임영일
소속 한경대
키워드 Coal-fired power plant; CO2 capture and utilization (CCU); CO2 methanation; Water alkaline electrolysis; Techno-economic analysis (TEA); Global surface temperature
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