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- Title
Effects of Hydrothermal Processing on Miscanthus × giganteus Polysaccharides: A Kinetic Assessment.
- Authors
Rivas, Sandra; Santos, Valentín; Parajó, Juan Carlos
- Abstract
Miscanthus × giganteus samples were characterized for composition and treated with hot compressed water (hydrothermal or autohydrolysis treatments) at temperatures in the range of 190–240 °C. The liquid phases from treatments were analyzed to assess the breakdown of susceptible polysaccharides into a scope of soluble intermediates and reaction products. The experimental concentration profiles determined for the target compounds (monosaccharides, higher saccharides, acetic acid and sugar-decomposition products) were interpreted using a pseudohomogeneous kinetic mechanism involving 27 reactions, which were governed by kinetic coefficients showing an Arrhenius-type temperature dependence. The corresponding activation energies were calculated and compared with data from the literature. The kinetic equations allowed a quantitative assessment of the experimental results, providing key information for process simulation and evaluation.
- Subjects
POLYSACCHARIDES; MISCANTHUS; SACCHARIDES; ACETIC acid; HOT water; MONOSACCHARIDES
- Publication
Polymers (20734360), 2022, Vol 14, Issue 21, p4732
- ISSN
2073-4360
- Publication type
Article
- DOI
10.3390/polym14214732