Effect of potassium on the mechanisms of biomass pyrolysis studied using complementary analytical techniques
Complementary analytical methods have been used to study the effect of potassium on the pyrolysis mechanisms of cellulose and lignocellulosic biomasses. Thermogravimetry, calorimetry, high-temperature 1H NMR spectroscopy (in situ and real-time analysis of the fluid phase formed during pyrolysis), an...
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| Format: | Article |
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Wiley
2016
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| Online Access: | https://eprints.nottingham.ac.uk/43447/ |
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| author | Le Brech, Yann Ghislain, Thierry Leclerc, Sébastien Bouroukba, Mohammed Delmotte, Luc Brosse, Nicolas Snape, Colin Chaimbault, Patrick Dufour, Anthony |
| author_facet | Le Brech, Yann Ghislain, Thierry Leclerc, Sébastien Bouroukba, Mohammed Delmotte, Luc Brosse, Nicolas Snape, Colin Chaimbault, Patrick Dufour, Anthony |
| author_sort | Le Brech, Yann |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Complementary analytical methods have been used to study the effect of potassium on the pyrolysis mechanisms of cellulose and lignocellulosic biomasses. Thermogravimetry, calorimetry, high-temperature 1H NMR spectroscopy (in situ and real-time analysis of the fluid phase formed during pyrolysis), and water extraction of quenched char followed by size-exclusion chromatography coupled with mass spectrometry have been combined. Potassium impregnated in cellulose suppresses the formation of anhydrosugars, reduces the formation of mobile protons, and gives rise to a mainly exothermic signal. The evolution of mobile protons formed from K-impregnated cellulose has a very similar pattern to the evolution of the mass loss rate. This methodology has been also applied to analyze miscanthus, demineralized miscanthus, miscanthus re-impregnated with potassium after demineralization, raw oak, and Douglas fir. Hydrogen mobility and transfer are of high importance in the mechanisms of biomass pyrolysis. |
| first_indexed | 2025-11-14T19:51:59Z |
| format | Article |
| id | nottingham-43447 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:51:59Z |
| publishDate | 2016 |
| publisher | Wiley |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-434472020-05-04T17:45:34Z https://eprints.nottingham.ac.uk/43447/ Effect of potassium on the mechanisms of biomass pyrolysis studied using complementary analytical techniques Le Brech, Yann Ghislain, Thierry Leclerc, Sébastien Bouroukba, Mohammed Delmotte, Luc Brosse, Nicolas Snape, Colin Chaimbault, Patrick Dufour, Anthony Complementary analytical methods have been used to study the effect of potassium on the pyrolysis mechanisms of cellulose and lignocellulosic biomasses. Thermogravimetry, calorimetry, high-temperature 1H NMR spectroscopy (in situ and real-time analysis of the fluid phase formed during pyrolysis), and water extraction of quenched char followed by size-exclusion chromatography coupled with mass spectrometry have been combined. Potassium impregnated in cellulose suppresses the formation of anhydrosugars, reduces the formation of mobile protons, and gives rise to a mainly exothermic signal. The evolution of mobile protons formed from K-impregnated cellulose has a very similar pattern to the evolution of the mass loss rate. This methodology has been also applied to analyze miscanthus, demineralized miscanthus, miscanthus re-impregnated with potassium after demineralization, raw oak, and Douglas fir. Hydrogen mobility and transfer are of high importance in the mechanisms of biomass pyrolysis. Wiley 2016-04-21 Article PeerReviewed Le Brech, Yann, Ghislain, Thierry, Leclerc, Sébastien, Bouroukba, Mohammed, Delmotte, Luc, Brosse, Nicolas, Snape, Colin, Chaimbault, Patrick and Dufour, Anthony (2016) Effect of potassium on the mechanisms of biomass pyrolysis studied using complementary analytical techniques. ChemSusChem, 9 (8). pp. 863-872. ISSN 1864-564X biomass; in situ analysis; nmr spectroscopy; potassium; reaction mechanisms http://onlinelibrary.wiley.com/doi/10.1002/cssc.201501560/full doi:10.1002/cssc.201501560 doi:10.1002/cssc.201501560 |
| spellingShingle | biomass; in situ analysis; nmr spectroscopy; potassium; reaction mechanisms Le Brech, Yann Ghislain, Thierry Leclerc, Sébastien Bouroukba, Mohammed Delmotte, Luc Brosse, Nicolas Snape, Colin Chaimbault, Patrick Dufour, Anthony Effect of potassium on the mechanisms of biomass pyrolysis studied using complementary analytical techniques |
| title | Effect of potassium on the mechanisms of biomass pyrolysis studied using complementary analytical techniques |
| title_full | Effect of potassium on the mechanisms of biomass pyrolysis studied using complementary analytical techniques |
| title_fullStr | Effect of potassium on the mechanisms of biomass pyrolysis studied using complementary analytical techniques |
| title_full_unstemmed | Effect of potassium on the mechanisms of biomass pyrolysis studied using complementary analytical techniques |
| title_short | Effect of potassium on the mechanisms of biomass pyrolysis studied using complementary analytical techniques |
| title_sort | effect of potassium on the mechanisms of biomass pyrolysis studied using complementary analytical techniques |
| topic | biomass; in situ analysis; nmr spectroscopy; potassium; reaction mechanisms |
| url | https://eprints.nottingham.ac.uk/43447/ https://eprints.nottingham.ac.uk/43447/ https://eprints.nottingham.ac.uk/43447/ |