바이오에너지 (바이오가스, 바이오매스) 기술의 온실가스 감축산정 : 국내를 대상으로 (Estimation of Greenhouse Gas (GHG) Reductions from Bioenergy (Biogas, Biomass): A Case Study of South Korea)

서지정보

· 발행기관 : 한국대기환경학회
· 수록지 정보 : 한국대기환경학회지 / 33권 / 4호 / 393 ~ 402페이지
· 저자명 : 정재형, 김기만

초록

In this study, greenhouse gas (GHG) reductions from bioenergy (biogas, biomass) have been estimated in Korea, 2015. This study for construction of reduction inventories as direct and indirect reduction sources was derived from IPCC 2006 guidelines for national greenhouse gas inventories, guidelines for local government greenhouse inventories published in 2016, also purchased electricity and steam indirect emission factors obtained from KPX, GIR respectively. As a result, the annual GHG reductions were estimated as 1,860,000 tonCO2eq accounting for 76.8% of direct reduction (scope 1) and 23.2% of indirect reduction (scope 2). Estimation of individual greenhouse gases (GHGs) from biogas appeared that CO2, CH4, N2O were 90,000 tonCO2 (5.5%), 55,000 tonCH4 (94.5%), 0.3 tonN2O (0.004%), respectively. In addition, biomass was 250,000 tonCO2 (107%), -300 tonCH4 (- 3.2%), - 33 tonN2O (- 3.9%). For understanding the values of estimation method levels, field data (this study) appeared to be approximately 85.47% compared to installed capacity. In details, biogas and biomass resulting from field data showed to be 76%, 74% compared to installed capacity, respectively. In the comparison of this study and CDM project with GHG reduction unit per year·installed capacity, this study showed as 42% level versus CDM project.
Scenario analysis of GHG reductions potential from bioenergy was analyzed that generation efficiency, availability and cumulative distribution were significantly effective on reducing GHG.

영어초록

In this study, greenhouse gas (GHG) reductions from bioenergy (biogas, biomass) have been estimated in Korea, 2015. This study for construction of reduction inventories as direct and indirect reduction sources was derived from IPCC 2006 guidelines for national greenhouse gas inventories, guidelines for local government greenhouse inventories published in 2016, also purchased electricity and steam indirect emission factors obtained from KPX, GIR respectively. As a result, the annual GHG reductions were estimated as 1,860,000 tonCO2eq accounting for 76.8% of direct reduction (scope 1) and 23.2% of indirect reduction (scope 2). Estimation of individual greenhouse gases (GHGs) from biogas appeared that CO2, CH4, N2O were 90,000 tonCO2 (5.5%), 55,000 tonCH4 (94.5%), 0.3 tonN2O (0.004%), respectively. In addition, biomass was 250,000 tonCO2 (107%), -300 tonCH4 (- 3.2%), - 33 tonN2O (- 3.9%). For understanding the values of estimation method levels, field data (this study) appeared to be approximately 85.47% compared to installed capacity. In details, biogas and biomass resulting from field data showed to be 76%, 74% compared to installed capacity, respectively. In the comparison of this study and CDM project with GHG reduction unit per year·installed capacity, this study showed as 42% level versus CDM project.
Scenario analysis of GHG reductions potential from bioenergy was analyzed that generation efficiency, availability and cumulative distribution were significantly effective on reducing GHG.

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