Valorisation of lignin by depolymerisation and fractionation using supercritical fluids and conventional solvents
A procedure for Lignosulphonate valorisation is investigated. An attempt has been made to obtain diverse value-added products maximizing the atom economy. This procedure is carried in sequential steps starting with an oxidative depolymerization in supercritical water. Next, the reaction mixture is f...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Published: |
Elsevier
2017
|
| Subjects: | |
| Online Access: | https://eprints.nottingham.ac.uk/48002/ |
| _version_ | 1848797668562698240 |
|---|---|
| author | Perez, Eduardo Tuck, Christopher O. Poliakoff, Martyn |
| author_facet | Perez, Eduardo Tuck, Christopher O. Poliakoff, Martyn |
| author_sort | Perez, Eduardo |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | A procedure for Lignosulphonate valorisation is investigated. An attempt has been made to obtain diverse value-added products maximizing the atom economy. This procedure is carried in sequential steps starting with an oxidative depolymerization in supercritical water. Next, the reaction mixture is fractionated according to its solubility in water and in ethyl acetate. Several analytical methods - CHN elemental analysis, aqueous GPC and 31P-NMR - were used to determine the composition of these fractions and to assess their suitability for different applications. Water-insoluble fractions were converted to a lignin-derived hydrochar for the synthesis of active carbon of superior quality. Monomers were recovered from bio-oil fraction by supercritical carbon dioxide extraction and the remaining oil is proposed as a potential starting material for the synthesis of polyurethane foams. |
| first_indexed | 2025-11-14T20:07:32Z |
| format | Article |
| id | nottingham-48002 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:07:32Z |
| publishDate | 2017 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-480022020-05-04T18:59:58Z https://eprints.nottingham.ac.uk/48002/ Valorisation of lignin by depolymerisation and fractionation using supercritical fluids and conventional solvents Perez, Eduardo Tuck, Christopher O. Poliakoff, Martyn A procedure for Lignosulphonate valorisation is investigated. An attempt has been made to obtain diverse value-added products maximizing the atom economy. This procedure is carried in sequential steps starting with an oxidative depolymerization in supercritical water. Next, the reaction mixture is fractionated according to its solubility in water and in ethyl acetate. Several analytical methods - CHN elemental analysis, aqueous GPC and 31P-NMR - were used to determine the composition of these fractions and to assess their suitability for different applications. Water-insoluble fractions were converted to a lignin-derived hydrochar for the synthesis of active carbon of superior quality. Monomers were recovered from bio-oil fraction by supercritical carbon dioxide extraction and the remaining oil is proposed as a potential starting material for the synthesis of polyurethane foams. Elsevier 2017-08-09 Article PeerReviewed Perez, Eduardo, Tuck, Christopher O. and Poliakoff, Martyn (2017) Valorisation of lignin by depolymerisation and fractionation using supercritical fluids and conventional solvents. Journal of Supercritical Fluids . ISSN 1872-8162 lignin valorization fractionation supercritical water oxidation supercritical extraction http://dx.doi.org/10.1016/j.supflu.2017.07.033 doi:10.1016/j.supflu.2017.07.033 doi:10.1016/j.supflu.2017.07.033 |
| spellingShingle | lignin valorization fractionation supercritical water oxidation supercritical extraction Perez, Eduardo Tuck, Christopher O. Poliakoff, Martyn Valorisation of lignin by depolymerisation and fractionation using supercritical fluids and conventional solvents |
| title | Valorisation of lignin by depolymerisation and fractionation using supercritical fluids and conventional solvents |
| title_full | Valorisation of lignin by depolymerisation and fractionation using supercritical fluids and conventional solvents |
| title_fullStr | Valorisation of lignin by depolymerisation and fractionation using supercritical fluids and conventional solvents |
| title_full_unstemmed | Valorisation of lignin by depolymerisation and fractionation using supercritical fluids and conventional solvents |
| title_short | Valorisation of lignin by depolymerisation and fractionation using supercritical fluids and conventional solvents |
| title_sort | valorisation of lignin by depolymerisation and fractionation using supercritical fluids and conventional solvents |
| topic | lignin valorization fractionation supercritical water oxidation supercritical extraction |
| url | https://eprints.nottingham.ac.uk/48002/ https://eprints.nottingham.ac.uk/48002/ https://eprints.nottingham.ac.uk/48002/ |