Title:
Surface Characterization of Unmodified/Modified Lignocellulosic Biomass, Before and After Adsorption
Author(s):
Apostolopoulos, G., Fardis, M., Chandrinou, C., Giannakopoulos, K., Kontos, A., Bidikoudi, M., Boukos, N., Falaras, P., Batzias, F.A., Sidiras, D.K.
Document(s):
Paper
Poster
Abstract:
This work deals with the surface characterization of unmodified/modified wheat straw biomass, before and after adsorption under laboratory conditions. The changes induced by autohydrolysis modification process at biomass surface are studied with scanning electron microscopy (SEM) with a view to drawing qualitative and quantitative conclusions about the induced changes and understanding the modification mechanism triggered at micro-scale and correlating them with the treatment process parameters in order to allow the manipulation of the adsorption properties of the produced material by properly adjusting the modification process parameters. Besides topography, the chemical composition at micro-scale using SEM with energy dispersive X-ray analysis (SEM/EDS) has also been investigated. The study has been performed on SEM INSPECT of FEI that allows low vacuum conditions, a prerequisite for handling biomass specimens that not only contain high levels of moisture and gasses but have insulating properties, as well. Moreover, as the biomass material is not homogeneous, it was necessary to study several microscopic fields and many specimens to assure statistically significant findings, according to small sample theory.
Keywords:
biomass, cellulose, lignin, hydrolysis, absorbent
Topic:
Biomass Conversion Technologies for Intermediates, Liquid and Gaseous Fuels, Chemicals and Materials
Subtopic:
Biorefineries and chemicals production
Event:
22nd European Biomass Conference and Exhibition
Session:
3BV.3.15
Pages:
1058 - 1070
ISBN:
978-88-89407-52-3
Paper DOI:
10.5071/22ndEUBCE2014-3BV.3.15
Price:
FREE
