Publication Details

Title : Supply Chain Sustainability Analysis of Renewable Hydrocarbon Fuels via Indirect Liquefaction, Hydrothermal Liquefaction, Combined Algal Processing, and Biochemical Conversion: Update of the 2021 State-of-Technology Cases
Publication Date : March 01, 2022
Authors : H. Cai, L. Ou, M. Wang, R. Davis, A. Dutta, K. Harris, M. Wiatrowski, E. Tan, A. Bartling, B. Klein, D. Hartley, P. Burli, Y. Lin, M. Roni, D. Thompson, L. Snowden-Swan, Y. Zhu, S. Li
Abstract : This technical report describes the SCSAs for the production of renewable hydrocarbon transportation fuels via a range of conversion technologies in the 2021 SOTs: (1) renewable high octane gasoline (HOG) via indirect liquefaction (IDL) of woody lignocellulosic biomass to syngas (note that the IDL pathway in this SCSA represents the bench-scale experiments in 2021, with corresponding conceptual scale-up assumptions (Harris et al. 2022); (2) renewable diesel (RD) via hydrothermal liquefaction (HTL) of wet sludge from a wastewater treatment plant; (Snowden-Swan et al. 2022) (3) renewable hydrocarbon fuels via biochemical conversion of herbaceous lignocellulosic biomass (Davis et al. 2022; Lin et al. 2020); (4) RD via HTL of algae produced as part of wastewater remediation services in a municipal water resource recovery facility (WRRF) (Zhu et al. 2022); and (5) renewable hydrocarbon fuels via combined algae processing (CAP) (Wiatrowski et al. 2022). Table 1 summarizes the feedstock options, conversion technologies, and finished products of the five 2021 SOT pathways. For simplicity and comparison with petroleum diesel, all LCI and LCA metrics for the biochemical conversion, HTL, and CAP pathways are reported on an RD basis, using an energy-based allocation method that allocates the sustainability impacts of both naphtha- and diesel-range hydrocarbon fuel products based on their energy contents.

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