Microwave-Assisted γ-Valerolactone Production for Biomass Lignin Extraction: A Cascade Protocol
The general need to slow the depletion of fossil resources and reduce carbon footprints has led to tremendous effort being invested in creating “greener” industrial processes and developing alternative means to produce fuels and synthesize platform chemicals. This work aims to design a microwave-ass...
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-03-01
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| Series: | Molecules |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1420-3049/21/4/413 |
| _version_ | 1830485917771497472 |
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| author | Silvia Tabasso Giorgio Grillo Diego Carnaroglio Emanuela Calcio Gaudino Giancarlo Cravotto |
| author_facet | Silvia Tabasso Giorgio Grillo Diego Carnaroglio Emanuela Calcio Gaudino Giancarlo Cravotto |
| author_sort | Silvia Tabasso |
| collection | DOAJ |
| description | The general need to slow the depletion of fossil resources and reduce carbon footprints has led to tremendous effort being invested in creating “greener” industrial processes and developing alternative means to produce fuels and synthesize platform chemicals. This work aims to design a microwave-assisted cascade process for a full biomass valorisation cycle. GVL (γ-valerolactone), a renewable green solvent, has been used in aqueous acidic solution to achieve complete biomass lignin extraction. After lignin precipitation, the levulinic acid (LA)-rich organic fraction was hydrogenated, which regenerated the starting solvent for further biomass delignification. This process does not requires a purification step because GVL plays the dual role of solvent and product, while the reagent (LA) is a product of biomass delignification. In summary, this bio-refinery approach to lignin extraction is a cascade protocol in which the solvent loss is integrated into the conversion cycle, leading to simplified methods for biomass valorisation. |
| first_indexed | 2024-12-21T18:33:57Z |
| format | Article |
| id | doaj.art-af001c82eb4841aebe70fdd3588ea089 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-12-21T18:33:57Z |
| publishDate | 2016-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-af001c82eb4841aebe70fdd3588ea0892022-12-21T18:54:12ZengMDPI AGMolecules1420-30492016-03-0121441310.3390/molecules21040413molecules21040413Microwave-Assisted γ-Valerolactone Production for Biomass Lignin Extraction: A Cascade ProtocolSilvia Tabasso0Giorgio Grillo1Diego Carnaroglio2Emanuela Calcio Gaudino3Giancarlo Cravotto4Dipartimento di Chimica, University of Turin, Via P. Giuria 7, 10125 Turin, ItalyDipartimento di Scienza e Tecnologia del Farmaco and NIS-Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 9, 10125 Turin, ItalyDipartimento di Scienza e Tecnologia del Farmaco and NIS-Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 9, 10125 Turin, ItalyDipartimento di Scienza e Tecnologia del Farmaco and NIS-Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 9, 10125 Turin, ItalyDipartimento di Scienza e Tecnologia del Farmaco and NIS-Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 9, 10125 Turin, ItalyThe general need to slow the depletion of fossil resources and reduce carbon footprints has led to tremendous effort being invested in creating “greener” industrial processes and developing alternative means to produce fuels and synthesize platform chemicals. This work aims to design a microwave-assisted cascade process for a full biomass valorisation cycle. GVL (γ-valerolactone), a renewable green solvent, has been used in aqueous acidic solution to achieve complete biomass lignin extraction. After lignin precipitation, the levulinic acid (LA)-rich organic fraction was hydrogenated, which regenerated the starting solvent for further biomass delignification. This process does not requires a purification step because GVL plays the dual role of solvent and product, while the reagent (LA) is a product of biomass delignification. In summary, this bio-refinery approach to lignin extraction is a cascade protocol in which the solvent loss is integrated into the conversion cycle, leading to simplified methods for biomass valorisation.http://www.mdpi.com/1420-3049/21/4/413ligninbiomassγ-valerolactonemicrowavesbio-refinery |
| spellingShingle | Silvia Tabasso Giorgio Grillo Diego Carnaroglio Emanuela Calcio Gaudino Giancarlo Cravotto Microwave-Assisted γ-Valerolactone Production for Biomass Lignin Extraction: A Cascade Protocol Molecules lignin biomass γ-valerolactone microwaves bio-refinery |
| title | Microwave-Assisted γ-Valerolactone Production for Biomass Lignin Extraction: A Cascade Protocol |
| title_full | Microwave-Assisted γ-Valerolactone Production for Biomass Lignin Extraction: A Cascade Protocol |
| title_fullStr | Microwave-Assisted γ-Valerolactone Production for Biomass Lignin Extraction: A Cascade Protocol |
| title_full_unstemmed | Microwave-Assisted γ-Valerolactone Production for Biomass Lignin Extraction: A Cascade Protocol |
| title_short | Microwave-Assisted γ-Valerolactone Production for Biomass Lignin Extraction: A Cascade Protocol |
| title_sort | microwave assisted γ valerolactone production for biomass lignin extraction a cascade protocol |
| topic | lignin biomass γ-valerolactone microwaves bio-refinery |
| url | http://www.mdpi.com/1420-3049/21/4/413 |
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