석탄발전 전력 생산 공정에서 CO2 배출 전과정에 대한 고열량탄 확대 효익 : 연료 수송, 연소, 대기오염물질 및 발전부산물 처리 중심으로 (Benefits of expanding high-calorific coal on the life cycle of CO2 emissions for electricity generation in a coal power plant: Fuel transportation, combustion, air pollutant treatment, and by-product )

서지정보

· 발행기관 : 한국기후변화학회
· 수록지 정보 : 한국기후변화학회지 / 15권 / 2호 / 195 ~ 206페이지
· 저자명 : 정현록

초록

Although closure of coal-fired power plants is being pursued as a major means of reducing greenhouse gases, such plants likely will remain in operation for a long time due to international, social, and economic considerations. In addition, the international community is promoting a carbon border adjustment mechanism and mandatory climate disclosure to reduce greenhouse gases. There is emphasis for key corporate players in greenhouse gas reduction to focus on the life cycle assessment at the business site. Therefore, to achieve carbon neutrality and respond to the demands of the international community until coal is obsolete, efforts to reduce and manage greenhouse gas emissions centered on the entire life cycle are necessary. Accordingly, this paper analyzed the benefits of increasing the use of high-calorific coal for the life cycle of CO2 emissions for electricity generation in a coal power plant. To this end, the electricity generation process is divided into four stages of fuel transportation, combustion, air pollutant treatment and by-product treatment. For each stage, the CO2 emission intensity (kgCO2/MWh) was analyzed in high-calorific, medium-calorific, and low-calorific coal. When high-calorific coal was expanded, CO2 emissions decreased in the fuel transportation and combustion stages but increased in the air pollutant and by-product treatment stages. Overall, the life cycle of CO2 emissions was shortened.

영어초록

Although closure of coal-fired power plants is being pursued as a major means of reducing greenhouse gases, such plants likely will remain in operation for a long time due to international, social, and economic considerations. In addition, the international community is promoting a carbon border adjustment mechanism and mandatory climate disclosure to reduce greenhouse gases. There is emphasis for key corporate players in greenhouse gas reduction to focus on the life cycle assessment at the business site. Therefore, to achieve carbon neutrality and respond to the demands of the international community until coal is obsolete, efforts to reduce and manage greenhouse gas emissions centered on the entire life cycle are necessary. Accordingly, this paper analyzed the benefits of increasing the use of high-calorific coal for the life cycle of CO2 emissions for electricity generation in a coal power plant. To this end, the electricity generation process is divided into four stages of fuel transportation, combustion, air pollutant treatment and by-product treatment. For each stage, the CO2 emission intensity (kgCO2/MWh) was analyzed in high-calorific, medium-calorific, and low-calorific coal. When high-calorific coal was expanded, CO2 emissions decreased in the fuel transportation and combustion stages but increased in the air pollutant and by-product treatment stages. Overall, the life cycle of CO2 emissions was shortened.

참고자료

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