Life cycle assessment of biodiesel produced from cottonseed oil in Türkiye

Abstract

Environmental sustainability to produce biodiesel requires a comprehensive assessment of the effects associated with the production process. This study aims to conduct a life cycle assessment (LCA) of biodiesel production from cottonseed oil in Türkiye to analyze the environmental impacts of biodiesel from cottonseed oil. The system boundary was carried out over cotton cultivation, cotton ginning, oil extraction, oil refinement, and transesterification. CML-IA baseline was the impact assessment method to quantify the environmental impact categories. The functional unit is 1 hectare of cotton field which produces 577 kg of biodiesel. The results demonstrated that the production chain produces 60,541 kg CO2-eq for global warming potential, 703 kg SO2-eq for acidification potential, 0.03 kg sb-eq for abiotic depletion potential, and 3964 kg PO43--eq for eutrophication potential. Cotton ginning, oil extraction, and oil refinement stages have the highest shares of environmental impact, and the effect of the transesterification process has the lowest impact.

Keywords

• Biofuel
• Cottonseed oil
• Environmental impact
• LCA
• Sustainability

Kaynakça

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