Mineral Particles in Sugar Cane Bagasse: Localization and Morphometry Using Microtomography Analysis
| Autor: | João Eduardo Ferreira, Nathaly L. Archilha, Liu Y. Ling, Carlos Driemeier, Daison Yancy-Caballero |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Materials science 020209 energy General Chemical Engineering Energy Engineering and Power Technology Lignocellulosic biomass Biomass Mineralogy 02 engineering and technology Raw material Pulp and paper industry Combustion Abrasion (geology) 03 medical and health sciences 030104 developmental biology Fuel Technology 0202 electrical engineering electronic engineering information engineering Vitrification Biorefining COMPUTAÇÃO APLICADA Bagasse |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/acs.energyfuels.7b02247 |
| Popis: | Mineral particles are detrimental to lignocellulosic biomass utilization as fuel and feedstock of advanced biorefineries. Minerals may cause corrosion, sintering, and vitrification in boilers, gasifiers, and combustors as well as abrasion and erosion of mechanical equipment used in biomass processing. In this work, we employed synchrotron X-ray computed microtomography to analyze mineral particles in fibers of sugar cane bagasse, the vast lignocellulosic residue of the sugar cane industry. Hundreds of mineral particles with volumes from ∼102 to 104 μm3 were observed and analyzed. Mineral particles were found mostly in three regions of the biomass particles: (i) at external surfaces, (ii) at internal surfaces associated with tissue cracks, and (iii) inside parenchyma cells, which were ruptured for extraction of the sugar-rich juice. These results provide novel insights for the development of bagasse cleaning technologies aiming at improving feedstock quality for combustion and biorefining. |
| Databáze: | OpenAIRE |
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