In this paper an exergy analysis of thermochemical ethanol production from biomass is presented. This process combines … ethanol. The production process involves several process sections, including biomass drying and gasification, syngas cleaning …, reforming, conditioning, and compression, ethanol synthesis, separation of synthesis products, and heat recovery. The process is …

Based on the torrefaction experiments carried out on beechwood and on its macromolecular constituents – cellulose … observed in part 1 between constituents were then taken into account by means of an empirical factor related to cellulose …

–300 °C under an inert or nitrogen atmosphere. The main constituents contained in biomass include hemicellulose, cellulose and … constituents, including hemicellulose, cellulose, lignin, xylan and dextran, were individually torrefied in a thermogravimetry. Two … the blend of hemicellulose, cellulose and lignin at the three torrefaction temperatures were also examined. The weight …

cellulose in an autoclave at various temperatures (200 °C–400 °C) and residence times (5 min–2 h). The gas products mainly …

– cellulose, lignin and xylan. The main volatile species measured were water, formaldehyde, acetic acid and carbon dioxide. Thanks … cellulose and the two other constituents. A hypothetical mechanism was proposed to explain these interactions. …

cellulose and lignin was hydrolyzed into glucose and propiolic acid, respectively. Increased pretreatment temperature, reaction … time, and H2SO4 concentration generated more hemicellulose, cellulose, and lignin degradation products, including … following the pretreatment, a large amount of cellulose was hydrolyzed into glucose and cellobiose, whereas hemicellulose was …

considered as an effective route for improving the properties of biomass. Hemicellulose, cellulose, lignin and xylan are the … predict the thermal decompositions of hemicellulose, cellulose, lignin and xylan. A thermogravimetry is used to perform …. From the analyses, the recommended values of the order of reaction of hemicellulose, cellulose, lignin and xylan are 3, 1 …

converted to organic acids via furans. Impact of hemicelluloses and lignin on acid hydrolysis of cellulose was investigated to … focus on monosaccharide production with different degrees of cellulose purity. Two-step concentrated sulphuric acid process … was applied to biomass for monosaccharide conversion. Kinetics of cellulose hydrolysis was analysed using 1H NMR …

Herein, α-cellulose, d-xylose, and lignin, which are major lignocellulosic biomass constituents, are subject to being … liquefied in scEtOH (supercritical ethanol). Biomass conversion, biocrude yield, gas composition and energy content resulting … from the liquefaction are analyzed. When cellulose is used, the biocrude yield increased significantly from 1.6 to 48.4 wt …