Sustainable Graphite and Jet Fuel from Biorefinery Residue
- North Carolina State University, Raleigh, NC (United States)
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Birla Carbon, Marietta, GA (United States)
- BioBTX, Groningen (Netherlands)
Battery-grade graphite and aviation fuel are traditionally produced from non-renewable, fossil carbon feedstocks and result in substantial greenhouse gas emissions. Biomass holds exciting potential as a renewable and sustainable feedstock for the production of graphite and aviation fuel, but challenges exist including the necessity of a catalyst when producing graphite and low selectivity when producing aviation fuel. A process to convert a biomass-derived feedstock into graphite without the use of a catalyst and fuels with high selectivity towards sustainable aviation fuel (SAF) is innovated. Heavy bio-oil undergoes a conversion process similar to the commercial production of synthetic graphite including coking at 500 °C, calcination at 1000 °C, and graphitization at 2800 °C. The resulting biographite exhibits excellent performance in lithium-ion battery configurations with specific capacity of ~330 mAh g−1 and a 96.8 % capacity rebound after high rate cycling. The liquid hydrocarbon co-product from coking is suitable for hydrotreating into SAF. The aviation fuel fraction (70 wt % of the fuel produced) meets ASTM standards and is composed primarily of cycloalkanes (~80 wt %) which improves energy density compared to paraffins produced by other SAF pathways and may replace aromatics for elastomer swelling in traditional jet fuel with less soot production.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Bioenergy Technologies Office (BETO)
- Grant/Contract Number:
- AC36-08GO28308
- OSTI ID:
- 2567572
- Alternate ID(s):
- OSTI ID: 2551764
- Report Number(s):
- NREL/JA--5100-94174
- Journal Information:
- ChemSusChem, Journal Name: ChemSusChem Journal Issue: 10 Vol. 18; ISSN 1864-5631; ISSN 1864-564X
- Publisher:
- ChemPubSoc EuropeCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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