Catalytic Oxidation of Kraft Lignin in a Trickle-Bed Continuous Reactor.

For the first time, the catalytic oxidation of Kraft lignin over a solid heterogeneous catalyst was studied in a continuous lab-scale trickle-bed reactor. This catalytic process is able to depolymerize Kraft lignin and produce phenolic compounds of interest such as vanillin. The impact of operating conditions such as temperature, residence time, contact time, catalyst loading and lignin concentration was evaluated.

Unexpected reactivity related to support effects during xylose hydrogenation over ruthenium catalysts.

Xylose is a major component of hemicelluloses. In this paper, its hydrogenation to xylitol in aqueous medium was investigated with two Ru/TiO catalysts prepared with two commercial TiO supports. A strong impact of the support on catalytic performance was evidenced.

Hydrolysis of oligosaccharides over solid acid catalysts: a review.

Mild fractionation/pretreatment processes are becoming the most preferred choices for biomass processing within the biorefinery framework. To further explore their advantages, new developments are needed, especially to increase the extent of the hydrolysis of poly- and oligosaccharides. A possible way forward is the use of solid acid catalysts that may overcome many current drawbacks of other common methods.