燃料生命周期影响评价指标的优化

Life cycle impact index optimization of fuel

生命周期影响评价是生命周期评价的重要环节。提出了能量使用、不可再生资源消耗、人体毒性、气溶胶、酸化和全球变暖六个重要的燃料生命周期影响评价指标。建立了评价指标的优化模型,并以木薯乙醇混合燃料的能量使用指标为例,进行了优化案例分析。文中提供的生命周期影响评价指标和优化方法可以用于各种燃料的影响评价和优化,有重要的应用价值。

Life cycle impact assessment is one of the most important processes in life cycle assessment. According to the data obtained from the life cycle inventory analysis,impact on the environment of product can be obtained through life cycle impact assessment. In this paper, six impact indicators, such as energy use,nonrenewable resource depletion potential,health toxic,air quality petential,acid potential and global warming potential, are proposed for fuels＇ impact assessment. The optimization models of impact assessment indicators are built up and take the optimization of EU of cassava-based ethanol as case study, The life cycle impact assessment and optimization can be used to assess and optimize all kinds of fuels and have very important practical value.