【摘要】 常规过程式生命周期评估方法在计算中会截断误差,导致评估结果被低估;投入产出方法可以避免截断误差的产生但不包括产品生命周期的使用阶段.为了对E10燃料的生命周期进行评估,建立了一个混合生命周期评估模型.生物质生产、乙醇生产/混配以及废物处理/回收3个子过程采用了投入产出生命周期评估方法,燃料燃烧子过程采用了过程式生命周期评估方法.对两种方法的排放值进行求和,计算出E10燃料生命周期VOC、CO、NOx、PM10、SOx、CH4、N2O、CO2排放值分别为21.245,321.488,26.829,3.110,5.904,9.126,3.028,31 345.721 mg/g.该结果与过程式生命周期评估结果一致.更多还原

【Abstract】 Truncation error occurs in process life cycle assessment（PLCA）,which makes an underestimation of assessment results.Economic input-output assessment（EIOLCA） can avoid the truncation error but excludes a use stage of life cycle.For assessing the life cycle of E10 fuel,a hybrid assessment model was established.EIOLCA method is used for sub-processes of biomass production,ethanol production/mixing and dispose/recycle,and PLCA method is used for sub-process of combustion.Through aggregating,the life cycle emission results shows that the emission of VOC,CO,NO_x,PM₁₀,SO_x,CH₄,N₂O,CO₂ are 21.245,321.488,26.829,3.110,5.904,9.126,3.028,31 345.721 mg/g ethanol output,respectively.These results are consistent to the results with PLCA method.更多还原