Date: Tuesday, 25 June 2024
Time: 16:15 - 17:15 CEST
Session code 2BV.7
Climate change assessments: from case studies to system investigations
The Effect of Used Cooking Oil Composition on the Specific CO2e Emissions Embodied in HEFA-SPK Production
Short Introductive summary
In the life cycle assessment (LCA) of sustainable aviation fuel (SAF), the composition of Used Cooking Oil (UCO) is often generalized despite its significant variability. This study aims to quantify the relationship between the composition of a UCO and the specific emissions it embodies. In this study, a mass and energy balanced chemically rigorous methodology is used to assess the chemical conversion of Used Cooking Oil to HEFA-SPK. The specific Used Cooking Oils assessed in this study are: Used Cooking Oils of unknown feedstock origin and Used Cooking Oil produced from known feedstocks; Sunflower Oil, Canola Oil, Soybean Oil, Palm Oil, and Jatropha Oil. From this analysis, the specific emissions embodied during HEFA-SPK production can be quantified by Used Cooking Oil feedstock alone. By considering only the composition of a Used Cooking Oil, an assessment of the specific energy utilization, hydrogen utilization, and embodied CO2e can be determined. From these calculations, the correlation between the composition, H/C ratio, and H/O ratio of a Used Cooking Oil, and the specific emissions embodied in its conversion to HEFA-SPK is determined.
Presenter
Liam MANNION
Trinity College Dublin, School of Physics Dt.
Presenter's biography
Hi, I am Liam Mannion and I am a PhD Candidate in Trinity College Dublin. I am from Co. Meath in Ireland and have a passion for sustainability and the environment. I am a researcher in the Low Carbon Technology Research Group, and the Ryanair Sustainable Aviation Research Centre.
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
C. Redington, Trinity College Dublin, Dublin, IRELAND
M. Kelly, Trinity College Dublin, Dublin, IRELAND
A. Bell, Trinity College Dublin, Dublin, IRELAND
S. Dooley, Trinity College Dublin, Dublin, IRELAND
Session reference: 2BV.7.19