화학공학소재연구정보센터
Korean Chemical Engineering Research, Vol.44, No.3, 319-322, June, 2006
발효에 의한 에탄올 생산공정의 전 과정 평가
Life Cycle Assessment of Ethanol Production Process Based on Fermentation
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초록
이 논문에서는 전 과정 평가 기법을 이용하여 발효에 의한 에탄올 생산공정의 환경적 가치를 평가하였다. 평가의 목적은 촉매반응에 의한 에탄올 생산공정의 환경성을 비교, 평가하기 위한 기준으로서 발효공정의 환경적 가치를 정량화하는데 있었다. 두 공정에서 생산되는 에탄올의 소비 및 폐기 과정은 동일하다고 가정하고 원료물질의 획득으로부터 제품의 생산 과정에 대한 전 과정 평가를 실시하였다. 전 과정 목록분석과 영향평가의 결과, 원료의 전처리 단계인 전분의 제조 과정에서 가장 큰 환경부하가 발생하며 그 영향은 주로 산성화 및 온실가스효과로 나타남을 알 수 있었다.
In this paper, the methodology of life-cycle assessment was applied to an ethanol production process based on fermentation. The purpose of the assessment was to quantify environmental performance of the process and to prepare a basis for environmental comparisons with the ethanol production process based on catalytic reaction. The assessment was carried only on the stages of raw material acquisition through ethanol manufacture since it was assumed that ethanol from both processes had the same environmental impacts through its use and discard. The assessment results showed that the major environmental impact came from the sub-process of producing starch from corn and the most severe burden was generated in the form of acidification and greenhouse effect.
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