Search results for "Biomass char"

showing 2 items of 2 documents

Midinfrared FT-IR as a Tool for Monitoring Herbaceous Biomass Composition and Its Conversion to Furfural

2015

A semiquantitative analysis by means of midinfrared FT-IR spectroscopy was tuned for the simultaneous determination of cellulose, hemicellulose, and lignin in industrial crops such as giant reed (Arundo donaxL.) and switchgrass (Panicum virgatumL.). Ternary mixtures of pure cellulose, hemicellulose, and lignin were prepared and a direct correlation area/concentration was achieved for cellulose and lignin, whereas indirect correlations were found for hemicellulose quantification. Good correspondences between the values derived from our model and those reported in the literature or obtained according to the official Van Soest method were ascertained. Average contents of 40–45% of cellulose, 2…

Article SubjectbiologySpectroscopy; Analytical Chemistry; Atomic and Molecular Physics and OpticsArundo donaxSettore ING-IND/27 - Chimica Industriale E Tecnologicabiology.organism_classificationFurfuralAtomic and Molecular Physics and OpticsAnalytical Chemistrychemistry.chemical_compoundHydrolysischemistryAtomic and Molecular PhysicsYield (chemistry)Biomass characterization FTIR lignocellulose biomass pretreatmentlcsh:QC350-467Panicum virgatumLigninOrganic chemistryHemicelluloseand OpticsCelluloselcsh:Optics. LightSpectroscopyNuclear chemistryJournal of Spectroscopy
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The effect of feedstock origin and temperature on the structure and reactivity of char from pyrolysis at 1300–2800 °C

2018

This study reports the effect of feedstock origin, residence time, and heat treatment temperature on CO2 and O2 reactivities, nanostructure and carbon chemistry of chars prepared at 1300, 1600, 2400, and 2800 °C in a slow pyrolysis reactor. The structure of char was characterized by transmission electron microscopy and Raman spectroscopy. The CO2 and O2 reactivity of char was investigated by thermogravimetric analysis. Results showed that the ash composition and residence time influence the char reactivity less than the heat treatment temperature. The heat treatment temperature and co-pyrolysis of pinewood char with biooil decreased the CO2 reactivity, approaching that of metallurgical coke…

Thermogravimetric analysisBiooilHigh-temperature pyrolysis020209 energyGeneral Chemical EngineeringEnergy Engineering and Power Technologychemistry.chemical_element02 engineering and technologyRaw materialsymbols.namesake020401 chemical engineeringMaschinenbau0202 electrical engineering electronic engineering information engineeringReactivity (chemistry)Char0204 chemical engineeringOrganic ChemistryReactivityMetallurgical cokeFuel TechnologychemistryChemical engineeringTransmission electron microscopyBiomass charsymbolsRaman spectroscopyCarbonPyrolysis
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