Influence of different LCIA methods on an exemplary scenario analysis from a process development LCA case study

Abstract Life cycle impact assessment (LCIA) methods quantify the of life inventory data within each category by means classification and characterization. This paper evaluated whether selected LCIA method influenced (LCA) scenario analysis for decision support in process development its possible reasons. For this study, a was used from biorefinery LCA case as is key practice development. The investigated using various three midpoint categories global warming potential (GWP, 12 totaling 48 subcategories), eutrophication (EP, 9 18 water (WA, 10 26 subcategories). GWP showed consistent interpretations different methods. subcategory marine EP two disagreed on best-case scenario. Another discrepancy identified general indicators, where trend inverted one because sensitivity single substance (ethanol). Within subcategories WA, inclusion or exclusion hydropower impacts changed blue use total freshwater subcategories, WA indicators also It important to understand these influences reasons behind variations