steam explosion process


Bioresour T, exploded lignocellulosic biomass. Of all the pretreatment technologies, steam explosion has been considered, as a potential unit operation in the process schemes of numerous commercial products, http://dx.doi.org/10.1016/B978-0-12-800080-9.00006-2, [18,19]. However, the decrystallization effect of steam explosion also clearly were demonstrated, both on pure cellulose fibers and Loblolly pine, as the severity factors, merized after steam explosion with increasing severity, reflected by the decreasing viscosity, steam explosion pretreatment reduced cellulose DP to level off values (LODP), which is, considered to correspond to the certain periodicity in the highly ordered structure of cellu-, lose, such as the length of microcrystallite [117,118]. [38], allowing for the evaluation and optimization, of the steam explosion process based on the previous works in the pulping industry [39, This factor defines the severity of steam explosion in terms of the combined effect of temper-, ature and retention time and is developed on the assumption that the process kinetics is first, 14.75 is the conventional energy of activation, The value of severity index is calculated by the logarithmic, Karr et al. recovered hemicellu-, loses sugars as a carbon source for microbial oil production by, 2.3 g/L of total soluble sugars were obtained; 2.6, from steam-exploded wheat straw under the optimum condition (200, et al. proposed the mechanistic model for steam explosion pretreatment, at different biomass particle sizes (Figure 6.2) and suggested that the small particles could, submerge in condensate water and then result in the poor efficiency of explosive depre, ization on the biomass solids [46]. As reported by Cullis et al., increasing the steaming, moisture content from 12% to 30% resulted in a substantial decrease of recover, hemicelluloses-derived carbohydrates in water-soluble fraction, probably described as the, “buffering effect” of moisture against carbohydrate solubilization, decomposition, and auto-, hydrolysis [52]. catalyzed steam explosion pretreatment system [66]. Ballmann P, Lightfoot J, Müller M, Dröge S, Prade R. Microb Cell Fact. 2015 Mar 6;117:624-31. doi: 10.1016/j.carbpol.2014.10.012. COVID-19 is an emerging, rapidly evolving situation. Enzymatic conversion of biomass for fuels production. Cellulose pulp and byproducts from hemicellulose and lignin. In this work, the beech wood sawdust was first exploded at 180 or 200 °C for 5 min after water or dilute acid impregnation. Appl Biochem Biotechnol 2004;121, exploded wheat straw. Bioresour Technol, duction and alkaline delignification reactions performed on a pilot scale with sugarcane bagasse for bio-, ethanol production.

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