Enzymatic hydrolysis at high lignocellulosic content: Optimization of the mixing system geometry and of a fed-batch strategy to increase glucose concentration - IFPEN - IFP Energies nouvelles Access content directly
Journal Articles Renewable Energy Year : 2019

Enzymatic hydrolysis at high lignocellulosic content: Optimization of the mixing system geometry and of a fed-batch strategy to increase glucose concentration

Abstract

Working at high values of lignocellulosic Dry Matter (DM), as wheat straw, increases the reaction medium viscosity, making the mixing inefficient with the traditional agitators. Batch and fed-batch tests were conducted using different impellers: i) inclined blades, ii) marine impeller, iii) anchor, iv) paravisc and v) double helical impeller. Inclined blades appeared an inadequate device for batch and fed-batch tests. On contrary, double helical impellers and anchor gave optimal performances. An alternative to improve the reactor’s rheology is the modification of the feeding strategy. A particular fed-batch strategy allowed keeping low the reaction medium viscosity by a gradual increasing of the DM content in the reactor. In this way, three main benefits were achieved: i) a very good performances in terms of glucose concentration (85 g/L), ii) a strong reduction of the energetic consumption compared to batch test and iii) the adoption of a simple mixing devise.
Fichier principal
Vignette du fichier
Enzymatic hydrolysis Manuscript.pdf (606.39 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-02063461 , version 1 (11-03-2019)

Identifiers

Cite

Federico Battista, Mélanie Gomez Almendros, Romain Rousset, Pierre-Antoine Bouillon. Enzymatic hydrolysis at high lignocellulosic content: Optimization of the mixing system geometry and of a fed-batch strategy to increase glucose concentration. Renewable Energy, 2019, 131, pp.152-158. ⟨10.1016/j.renene.2018.07.038⟩. ⟨hal-02063461⟩

Collections

IFP
56 View
196 Download

Altmetric

Share

Gmail Facebook X LinkedIn More