Economic and sustainability prospects for wet waste valorization: The case for sustainable aviation fuel from arrested anaerobic digestion

Matthew R. Wiatrowski, Jacob H. Miller, Arpit Bhatt, Stephen M. Tifft, Zia Abdullah and Ling Tao

Renewable Energy, 2024, vol. 232, issue C

Abstract: Valorizing wet wastes to sustainable aviation fuel (SAF) can be achieved through sequential arrested anaerobic digestion (AAD) to volatile fatty acids (VFAs) and thermochemical catalytic upgrading. Alternatively, conventional anaerobic digestion (AD) can use wet waste to produce biogas (for electricity generation), biomethane, or green hydrogen. To assess the VFA-SAF pathway, we conducted a comprehensive techno-economic analysis (TEA) of each approach using Aspen Plus and discounted cash flow models, coupled with life cycle assessment (LCA) to estimate fuel carbon intensity (CI) and evaluate the implications of policy incentives for carbon emissions reduction.

Keywords: Sustainable aviation fuel; Wet waste; Anaerobic digestion; Techno-economic analysis; Life cycle assessment (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:232:y:2024:i:c:s0960148124011315

DOI: 10.1016/j.renene.2024.121063

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