Pilot Scale Electrolysis of Peroxodicarbonate as an Oxidizer for Lignin Valorization.
| Autor: | Rücker T; Process Technology, SINTEF Industry, Trondheim, Trøndelag NO-7465, Norway.; Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany., Pettersen T; Process Technology, SINTEF Industry, Trondheim, Trøndelag NO-7465, Norway., Graute H; Process Technology, SINTEF Industry, Trondheim, Trøndelag NO-7465, Norway., Wittgens B; Process Technology, SINTEF Industry, Trondheim, Trøndelag NO-7465, Norway., Graßl T; CONDIAS GmbH, Fraunhofer Straße 1b, 25524 Itzehoe, Germany., Waldvogel SR; Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany.; Karlsruhe Institute of Technology, Kaiserstraße 12, 76131 Karlsruhe, Germany. |
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| Jazyk: | angličtina |
| Zdroj: | ACS sustainable chemistry & engineering [ACS Sustain Chem Eng] 2024 Jul 18; Vol. 12 (30), pp. 11283-11296. Date of Electronic Publication: 2024 Jul 18 (Print Publication: 2024). |
| DOI: | 10.1021/acssuschemeng.4c02898 |
| Abstrakt: | A pilot scale plant at Technology Readiness Level (TRL) 6 comprising an electrochemical ex-cell continuous production of sodium peroxodicarbonate and a thermal depolymerization plug flow reactor for kraft lignin conversion is established. Due to the labile nature of the "green" oxidizer peroxodicarbonate, special attention must be paid to the production parameters in order to optimize its use. A simplified design model describing steady-state and transient operations is formulated and finally validated against experimental data from the electrolysis setup. Design trade-offs are visualized, and their impact on specific energy consumption is evaluated. The pilot plant was operated for a 20-month period for more than 1200 h on-stream. Optimized process conditions result in vanillin yields of 8 wt % and thus prove the successful scale-up. Competing Interests: The authors declare no competing financial interest. (© 2024 The Authors. Published by American Chemical Society.) |
| Databáze: | MEDLINE |
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