Influence of solvent on microwave-assisted cellulose activation

Research output: Chapter in Book/Report/Conference proceedingConference contribution



Publication details

Title of host publicationNWBC 2018 - Proceedings of the 8th Nordic Wood Biorefinery Conference
DatePublished - 1 Jan 2018
Number of pages6
PublisherVTT Technical Research Centre of Finland
EditorsEemeli Hytonen, Jessica Vepsalainen
Original languageEnglish
ISBN (Electronic)9789513886714

Publication series

NameNWBC 2018 - Proceedings of the 8th Nordic Wood Biorefinery Conference


In this study, the influence of organic liquids on microwave (MW) pyrolysis of cellulose was investigated. MW-related solvent parameters were separated into three main groups which could be characterise as i) MW-solvent, ii) solvent-cellulose and iii) solvent-product interactions. The characterisation of MW-solvent interaction was performed by measuring the dielectric loss factor (ϵ'') of selected solvents using the resonant cavity perturbation (RCP) technique. The solvent-cellulose interaction was measured by the degree of cellulose swelling. The solvent-product interaction was evaluated with Abraham solvation parameters by using Multilinear regression (MLR) and PCA analysis. The MW heating rate was analysed with nonlinear regression and the efficiency of solventcellulose interaction in MW was found to correlate with the mass balance of products. MLR of cellulose swelling and solvation parameter was found to be independent of each other. A relation between McGowan volume of solvent with pyrolysis rate of cellulose was revealed.

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