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Carbon-negative valorization of biomass waste into affordable green hydrogen and battery anodes
KTH Royal Institute of Technology, Sweden.
KTH Royal Institute of Technology, Sweden.
Uppsala University, Sweden.
Shanghai Jiao Tong University, Sweden.
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2023 (English)In: International journal of hydrogen energy, ISSN 0360-3199, E-ISSN 1879-3487, Vol. 49, p. 459-Article in journal (Refereed) Published
Abstract [en]

The global Sustainable Development Goals highlight the necessity for affordable and clean energy, designated as SDG7. A sustainable and feasible biorefinery concept is proposed for the carbon-negative utilization of biomass waste for affordable H2 and battery anode material production. Specifically, an innovative tandem biocarbon + NiAlO + biocarbon catalyst strategy is constructed to realize a complete reforming of biomass pyro-vapors into H2+CO (as a mixture). The solid residues from pyrolysis are upgraded into high-quality hard carbon (HCs), demonstrating potential as sodium ion battery (SIBs) anodes. The product, HC-1600-6h, exhibited great electrochemical performance when employed as (SIBs) anodes (full cell: 263 Wh/kg with ICE of 89%). Ultimately, a comprehensive process is designed, simulated, and evaluated. The process yields 75 kg H2, 169 kg HCs, and 891 kg captured CO2 per ton of biomass achieving approx. 100% carbon and hydrogen utilization efficiencies. A life cycle assessment estimates a biomass valorization process with negative-emissions (−0.81 kg CO2/kg-biomass, reliant on Sweden wind electricity). A techno-economic assessment forecasts a notably profitable process capable of co-producing affordable H2 and hard carbon battery anodes. The payback period of the process is projected to fall within two years, assuming reference prices of 13.7 €/kg for HCs and 5 €/kg for H2. The process contributes to a novel business paradigm for sustainable and commercially viable biorefinery process, achieving carbon-negative valorization of biomass waste into affordable energy and materials.

Place, publisher, year, edition, pages
Elsevier Ltd , 2023. Vol. 49, p. 459-
Keywords [en]
Anodes; Bioconversion; Biomass; Carbon dioxide; Investments; Life cycle; Metal ions; Refining; Sodium-ion batteries; Affordable energy; Battery anodes; Biocarbon; Biomass wastes; Biorefineries; Energy; Hard carbon; Negative emission; Sodium ion batteries; Valorisation; Carbon
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Mechanical Engineering
Identifiers
URN: urn:nbn:se:ri:diva-67666DOI: 10.1016/j.ijhydene.2023.09.096Scopus ID: 2-s2.0-85172247785OAI: oai:DiVA.org:ri-67666DiVA, id: diva2:1815848
Note

Financial supported by VINNOVA- the Swedish innovation fund Agency with project number 2021-03735 is highly appreciated. One of the authors, Hanmin Yang would like to acknowledge the financial support from the Chinese Scholarship Council (CSC) and Stiftelsen Energitekniskt Centrum i Piteå, Sweden.

Available from: 2023-11-30 Created: 2023-11-30 Last updated: 2024-06-11Bibliographically approved

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Sandström, Linda

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