Microwave-Assisted Catalytic Solvolysis of Lignin to Phenols: Kinetics and Product Characterization.

ABSTRACT: Lignin, a major component of lignocellulosic biomass, is a valuable source of phenolic and aromatic compounds. It is, therefore, vital to develop strategies to selectively deconstruct lignin to valuable chemicals. This study focuses on the kinetics of depolymerization of lignin and the production of phenols via a microwave-assisted catalytic process at mild conditions of 80 °C in dimethyl sulfoxide/water medium. Four different catalysts used in this study, viz., Fe₂O₃, LaFeO₃, ZrO₂, and zeolite-Y hydrogen (ZYH), were characterized for structure, specific surface area, and surface morphology. The molecular weight reduction of lignin and the evolution of phenolic monomers and oligomers were monitored using various techniques, and the rate constants

SUBMITTER: Dhar P 

PROVIDER: S-EPMC6643774 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature