석탄발전 전력 생산 공정에서 CO₂ 배출 전과정에 대한 고열량탄 확대 효익 : 연료 수송, 연소, 대기오염물질 및 발전부산물 처리 중심으로

• Published in: 한국기후변화학회지 Vol. 15; no. 2; pp. 195 - 206
• Main Author: 정현록(Jung, Hyun-Rock)
• Format: Journal Article
• Language: Korean
• Published: 한국기후변화학회 01.04.2024
• Subjects: 학제간연구; Life Cycle; Electricity Generation Process; CO₂ Emission Intensity; Coal Calorific Value
• ISSN: 2093-5919; 2586-2782
• DOI: 10.15531/KSCCR.2024.15.2.195

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 Therefore, to achieve carbon neutrality and respond to the demands of the international community until coal is obsolete, efforts to reduce and manage greenhouse gas emissions centered on the entire life cycle are necessary.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. KCI Citation Count: 0