NEW REVIEW: Understanding biomass fractionation in subcritical&supercritical water

Biomass fractionation into its individual building blocks poses a major challenge to the biorefinery concept. The recalcitrance of the lignocellulose matrix and the high crystallinity of cellulose make typical feed stocks difficult to separate into their components. Hydrothermal processing fractionates biomass by its hydrolysis. However, a deep knowledge of hydrolysis principles is required since an […]

Read More

WCCE NEWS: AWARD TO THE BEST ORAL COMMUNICATION FOR OUR GROUP

Gianluca Gallina has been awarded during the 10th World Congress of Chemical Engineering held in Barcelona (Spain) for his lecture titled: New pilot plant for hemicellulose extraction with hot pressurized water in the International Symposium of Ligno-Cellulosic Materials. Additionally, this system was patented and detailed information about the work can be found in this paper: https://doi.org/10.1016/j.biortech.2017.09.155 […]

Read More

NEW RESEARCH PAPER. MAXIMIZATION OF MONOMERIC C5 SUGARS FROM WHEAT BRAN BY USING MESOPOROUS ORDERED SILICA CATALYSTS

The hydrolysis process of a real fraction of arabinoxylans derived from wheat bran was studied. The influence of catalyst type and loading, reaction time and different metal cations were discussed in terms of the hydrolysis yield of arabinose and xylose oligomers as well as the formation of furfural as degradation product. A high yield of […]

Read More

Kinetics analysis of solubilized biomass from a hydrolysis process by supercritical and subcritical water

A suitable technique to upgrade biomass is an essential point in order to make it possible to develop a sustainable economy based on biomass sources. One likely and green option to extract chemicals from biomass is hydrothermal processing. A process that only requires water, high temperature and pressure to fractionate biomass. In the same way, […]

Read More

Hydrolysis of Arabinoxylans From Wheat Bran into Monomeric Sugars Over Heterogeneous Catalysts

The aim of this work is to study the conversion of arabinoxylans from wheat bran into monomeric sugars, namely xylose and arabinose, using RuCl3-based catalysts. Arabinoxylans (AX), which are the major components of wheat bran, can be converted into arabinose and xylose by a hydrolysis process (Fig. 1). These two sugars are very interesting platform […]

Read More

Disolution/Hydrolysis and repolymerization of lignin using ultrafast reactors in supercritical water

Efficient biomass fractionation is actually one of the major challenges posed to the biorefinery, because the complex structure of the plant cell wall and the high crystallinity of cellulose make the feedstock recalcitrant to separation into its components. Isolation/pretreatment methods that result in consistent types of lignin of high quality and purity are highly desirable. […]

Read More

Heterogeneous catalysts for the extraction of arabinoxylans from wheat bran

The conversion of biomass within biorefineries into chemicals and energy is seen as a real possibility for the substitution of fossil resources. Raw materials of high lignocellulosic content are an interesting option. Nowadays wheat bran is gaining interest as raw material for biorefineries due to its high content in polysaccharides. In this sense, arabinoxylans (AX), […]

Read More