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Fine Comminution of Pine Bark: How Does Mechanical Loading Influence Particles Properties and Milling Efficiency?

The use of lignocellulosic plant biomass as an alternative to fossil feedstocks for chemistry, energy and materials often involves an intense dry comminution step, for which the energy consumed can vary significantly according to the process parameters, the particle size targeted, and the properties...

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Autores principales: Rajaonarivony, Karine, Rouau, Xavier, Lampoh, Komlanvi, Delenne, Jean-Yves, Mayer-Laigle, Claire
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6955659/
https://www.ncbi.nlm.nih.gov/pubmed/31698754
http://dx.doi.org/10.3390/bioengineering6040102
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author Rajaonarivony, Karine
Rouau, Xavier
Lampoh, Komlanvi
Delenne, Jean-Yves
Mayer-Laigle, Claire
author_facet Rajaonarivony, Karine
Rouau, Xavier
Lampoh, Komlanvi
Delenne, Jean-Yves
Mayer-Laigle, Claire
author_sort Rajaonarivony, Karine
collection PubMed
description The use of lignocellulosic plant biomass as an alternative to fossil feedstocks for chemistry, energy and materials often involves an intense dry comminution step, for which the energy consumed can vary significantly according to the process parameters, the particle size targeted, and the properties of the biomass. Here we studied the fine milling of maritime pine bark in an impact-mill configuration and in an attrition-mill configuration. The properties of the resulting powders (particle size distribution, particle shape, specific surface area, agglomeration level) obtained in each configuration were compared in relation to process energy consumption. Results evidenced that the agglomeration phenomena drive milling efficiency and limit the possibilities for reaching ultrafine particles. Interestingly, impact loading proved more effective at breaking down coarse particles but tended to generate high agglomeration levels, whereas attrition milling led to less agglomeration and thus to finer particles.
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spelling pubmed-69556592020-01-23 Fine Comminution of Pine Bark: How Does Mechanical Loading Influence Particles Properties and Milling Efficiency? Rajaonarivony, Karine Rouau, Xavier Lampoh, Komlanvi Delenne, Jean-Yves Mayer-Laigle, Claire Bioengineering (Basel) Article The use of lignocellulosic plant biomass as an alternative to fossil feedstocks for chemistry, energy and materials often involves an intense dry comminution step, for which the energy consumed can vary significantly according to the process parameters, the particle size targeted, and the properties of the biomass. Here we studied the fine milling of maritime pine bark in an impact-mill configuration and in an attrition-mill configuration. The properties of the resulting powders (particle size distribution, particle shape, specific surface area, agglomeration level) obtained in each configuration were compared in relation to process energy consumption. Results evidenced that the agglomeration phenomena drive milling efficiency and limit the possibilities for reaching ultrafine particles. Interestingly, impact loading proved more effective at breaking down coarse particles but tended to generate high agglomeration levels, whereas attrition milling led to less agglomeration and thus to finer particles. MDPI 2019-11-06 /pmc/articles/PMC6955659/ /pubmed/31698754 http://dx.doi.org/10.3390/bioengineering6040102 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Rajaonarivony, Karine
Rouau, Xavier
Lampoh, Komlanvi
Delenne, Jean-Yves
Mayer-Laigle, Claire
Fine Comminution of Pine Bark: How Does Mechanical Loading Influence Particles Properties and Milling Efficiency?
title Fine Comminution of Pine Bark: How Does Mechanical Loading Influence Particles Properties and Milling Efficiency?
title_full Fine Comminution of Pine Bark: How Does Mechanical Loading Influence Particles Properties and Milling Efficiency?
title_fullStr Fine Comminution of Pine Bark: How Does Mechanical Loading Influence Particles Properties and Milling Efficiency?
title_full_unstemmed Fine Comminution of Pine Bark: How Does Mechanical Loading Influence Particles Properties and Milling Efficiency?
title_short Fine Comminution of Pine Bark: How Does Mechanical Loading Influence Particles Properties and Milling Efficiency?
title_sort fine comminution of pine bark: how does mechanical loading influence particles properties and milling efficiency?
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6955659/
https://www.ncbi.nlm.nih.gov/pubmed/31698754
http://dx.doi.org/10.3390/bioengineering6040102
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