Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7071980 | Bioresource Technology | 2016 | 8 Pages |
Abstract
A process has been validated for the deconstruction of lignocellulose on a pilot scale installation using six types of biomass selected for their sustainability, accessibility, worldwide availability, and differences of chemical composition and physical structure. The process combines thermo-mechano-chemical and bio-catalytic action in a single twin-screw extruder. Three treatment phases were sequentially performed: an alkaline pretreatment, a neutralization step coupled with an extraction-separation phase and a bioextrusion treatment. Alkaline pretreatment destructured the wall polymers after just a few minutes and allowed the initial extraction of 18-54% of the hemicelluloses and 9-41% of the lignin. The bioextrusion step induced the start of enzymatic hydrolysis and increased the proportion of soluble organic matter. Extension of saccharification for 24Â h at high consistency (20%) and without the addition of new enzyme resulted in the production of 39-84% of the potential glucose.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Virginie Vandenbossche, Julien Brault, Oscar Hernandez-Melendez, Philippe Evon, Eduardo Barzana, Gérard Vilarem, Luc Rigal,