%0 Thesis %A Bachmann, Marvin %T From life cycle assessment to absolute environmental sustainability of plastics from alternative carbon feedstocks; 1. Auflage %V 50 %I RWTH Aachen University %V Dissertation %C Aachen %M RWTH-2024-06179 %B Aachener Beiträge zur technischen Thermodynamik %P 1 Online-Ressource : Illustrationen %D 2024 %Z Druckausgabe: 2024. - Auch veröffentlicht auf dem Publikationsserver der RWTH Aachen University %Z Dissertation, RWTH Aachen University, 2024 %X Plastics have become indispensable part of our modern society, but their environmental impact has raised concerns globally. Efforts to reduce greenhouse gas emissions encompass the production of plastics from alternative carbon feedstocks, namely plastic waste, biomass, CO2, and steel mill off-gases (mill gas). Previous studies have shown the climate benefits of using these feedstocks, but this thesis identifies critical scientific gaps in the current assessment practice. These scientific gaps include unexplored environmental synergies, disregarded system-wide environmental impacts, and insufficient consideration of other environmental impacts than climate change. To address these scientific gaps, this thesis explores environmental synergies from combined utilization of biomass and CO2. The results show that combined utilization saves about 13 %F PUB:(DE-HGF)11 ; PUB:(DE-HGF)3 %9 Dissertation / PhD ThesisBook %R 10.18154/RWTH-2024-06179 %U https://publications.rwth-aachen.de/record/988442