@article { , title = {Effect of Potassium on the Mechanisms of Biomass Pyrolysis Studied using Complementary Analytical Techniques}, abstract = {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.}, doi = {10.1002/cssc.201501560}, eissn = {1864-564X}, issn = {1864-5631}, issue = {8}, journal = {ChemSusChem}, note = {Requester contacted about pdf (has comments) and date of acceptance. TJJ 07/06/2017}, pages = {863-872}, publicationstatus = {Published}, publisher = {Wiley}, url = {https://nottingham-repository.worktribe.com/output/784189}, volume = {9}, keyword = {biomass, in situ analysis, nmr spectroscopy, potassium, reaction mechanisms}, year = {2016}, author = {Le Brech, Yann and Ghislain, Thierry and Leclerc, Sébastien and Bouroukba, Mohammed and Delmotte, Luc and Brosse, Nicolas and Snape, Colin and Chaimbault, Patrick and Dufour, Anthony} }