1. Electrostatic separation of mineral and vegetal powders with a custom built corona separator: application to biorefinery of rice husk
- Author
-
Claire Mayer-Laigle, Xavier Rouau, Lucien Dascalescu, Rova Karine Rajaonarivony, Ingénierie des Agro-polymères et Technologies Émergentes (UMR IATE), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université Montpellier 2 - Sciences et Techniques (UM2)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut Pprime (PPRIME), Université de Poitiers-Centre National de la Recherche Scientifique (CNRS)-ENSMA, Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université Montpellier 2 - Sciences et Techniques (UM2)-Université de Montpellier (UM)-Institut National de la Recherche Agronomique (INRA), ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers, Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université Montpellier 2 - Sciences et Techniques (UM2)-Université de Montpellier (UM)-Institut National de la Recherche Agronomique (INRA), and Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)
- Subjects
QC1-999 ,Ingénierie des aliments ,Separator (oil production) ,02 engineering and technology ,Husk ,Decay curve ,bioraffinerie ,0404 agricultural biotechnology ,agricultural resources ,[SDV.IDA]Life Sciences [q-bio]/Food engineering ,Food engineering ,poudre minérale ,fibre de cellulose ,Physics ,brisure de riz ,04 agricultural and veterinary sciences ,021001 nanoscience & nanotechnology ,Biorefinery ,040401 food science ,Electrostatic separation ,ressource agricole ,Cellulose fiber ,Chemical engineering ,Particle size ,0210 nano-technology ,procédé de séparation - Abstract
In a dry biorefinery scheme, the separation of plant materials into powders rich in the constituents of interest is a crucial step. In recent years, electrostatic separation of agri-resources has sparked a growing interest for its potentialities, but optimization efforts remain to be done especially in case of fine powders. In this study a custom-designed corona-electrostatic separator has been built and its usage for the separation of mineral (ash from rice husk) and vegetal powders (cellulose fibers) with different particle size distributions has been studied. First, the powders have been characterized by their electric charge decay curves and their behaviour on the separator was studied. At a second time, separation tests have been carried out with blends of these two powders, and with native, finely ground, rice husk powder (constituted of both mineral and vegetal particles). In each case, the efficiency of the process was evaluated.
- Published
- 2017