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Showing 1 to 20 of 24 for “"Steam Explosion"”.
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The steam explosion of wood
Thesis (B.S.) Massachusetts Institute of Technology. Dept. of Chemical Engineering, 1948.
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Clean Fractionation of Biomass - Steam Explosion and Extraction
… terms of relative cleanness. Red oak chips were steam exploded using a batch reactor at five different treatment severities, Ro 5,000, 10,000, 15,000, 20,000 and 35,000. Steam exploded fibers (SEF) of each severity were extracted with water and alkali. Mass fractionation and summative analysis …
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Torrefaction and Steam Explosion of Selected Biomass for Biofuel Production
… pretreatment processing methods, namely, steam explosion and torrefaction of selected biomass feedstocks (sawdust and oat straw), processing characteristics, and product properties. The study also discusses the economics of densifying biomass, outstanding challenges, the potential for …
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Modification of Wood Fiber with Thermoplastics by Reactive Steam-Explosion
… of co-refining wood and polyolefin (PO) by steam-explosion was scientifically explored for wood-thermoplastic composites without a coupling agent. Traditional studies have addressed the improvement of adhesion between components of wood thermoplastic composites through the use of coupling …
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Technical review and economic evaluation: steam- explosion/fractionation of biomass
… the process cost for several scenarios in steam-explosion/fractionation of wood. Steam -explosion pulping may prove to be an alternative to currently practiced standard pulping processes which require large capital investments, cause significant environmental problems, and produce a narrow …
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Steam Explosion Pretreatment of Cotton Gin Waste for Fuel Ethanol Production
… This study focused on the use of steam explosion as the pretreatment method. Steam explosion treatment of biomass has been previously described to increase cellulose accessibility. The governing factors for the effectiveness of steam explosion are steam temperature and retention …
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Comparison Study Between Post-Fermentation Stillage and Pre-Fermentation Mash Utilizing Acidification and Steam Explosion Techniques for Cellulose Saccharification
… were exposed to increasing temperatures for steam explosion techniques as well as increasing acidification techniques. Both underwent enzymatic saccharification to convert the exposed cellulose to glucose and other sugars. Once the optimum steam explosion technique parameters and …
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Evaluation of ruminal escape potential of crab meal and other protein supplements and influence of steam explosion of ruminal degradability of crab meal
… and the other to explore the potential of steam explosion technique to improve the nutritive value of crab meal. In Expt. 1, 48 Angus x Hereford and Angus x Simmental steers (avg. BW, 223 kg) were used in a 126-d growth study. Diets were formulated to contain 10.5% CP and 63% TDN, DM basis. …
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Assessment of pre-treatment technologies for bio-ethanol production using multi-objective optimisation
… for biofuel production in South Africa if steam generation from bagasse at the sugarcane mills was more efficient (Lynd et al., 2003). Bagasse comprises lignocellulose which does not contain free sugars, but requires pre-treatment so as to promote access to polysaccharides for hydrolys is …
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Twin screw extrusion pre-treatment of wheat straw for biofuel and lignin biorefinery applications
… physical, thermal and chemical treatments. Steam explosion is a batch process and is the most commonly used method for lignocellulosic pre-treatment. In the initial stage of this study, the yield of glucose obtained from enzymatic saccharification for both methods (extrusion and steam …
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Bioconversion of lignocellulosic hydrolysate to acetic acid using Moorella thermoacetica
… Four different hydrolysates obtained after steam pretreatment of lignocellulosic biomass were selected and fermented to acetic acid in batch fermentations. The bacterial strain (ATCC 39073) can effectively ferment xylose and glucose in steam exploded hydrolysates from wheat straw, forest …
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Numerical Simulation of Corium Jet Fragmentation
… concerning Fuel-Coolant Interactions (FCI). A steam explosion could occur depending on jet fragmentation and dispersion in the water. A 2-D in-house CFD MATLAB script has been developed by employing the Volume of Fluid Method (VOF) to simulate jet fragmentation in a water pool. This research is …
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Biomass pretreatment toward efficient hydrolysis for sustainable biofuel applications
… steps. Physicochemical pretreatments, such as steam explosion, have been identified as one of the most effective and cost-efficient pretreatment methods for lignocelluosic materials. In Chapter 2, SO2-catalyzed steam explosion will be discussed and the effect of pretreatment severity on the …
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Improving Brassica napus straw for cellulosic ethanol production
… of Brassica napus straw were investigated using steam explosion. Screening methods were developed to gather suitable data for association mapping. Areas of the B. napus transcriptome related to processing traits were highlighted and assessed. The results show that autocatalytic pretreatments are …
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Effect of pretreatment on the breakdown of lignocellulosic matrix in barley straw as feedstock for biofuel production
… using alkaline (NaOH) solution as a catalyst and steam explosion pretreatment at low severity factor. The pretreatment was applied on barley straw which was ground in hammer mill with a screen size of 1.6 mm, so as to enhance its accessibility and digestibility by enzymatic reaction during …
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Optimization of the production of bioethanol from duckweed (Lemna minor)
… additional use of thermophysical pretreatment (steam explosion) results in a dramatic decrease in the amount of enzyme required for quantitative saccharification. A more advanced commercial cellulase cocktail (Cellic® CTec 2; CTec 2) is likely to further reduce the enzyme cost. Methods for the …
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The exploitation of municipal solid waste (MSW) and related waste paper streams in the production of bioalcohol
… by the presence of alcohols at over 3-4% (v/v). Steam explosion of paper slightly enhanced saccharification. However, the approach was rejected due to high energy cost, production of fermentation inhibitors at high severities, and lack of clear benefit regarding ethanol yield. Interestingly, …
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Structure-property relationships in polyurethanes from lignin
… lignins and diisocyanates. Kraft and steam explosion lignin, hexamethylene diisocyanate (HDI) and tolylene diisocyanate (TDI), were used for the study. It was found necessary to use stoichiometric excess amounts of diisocyanates in the synthesis of the thermosetting polyurethanes. The …
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Characterization of a Novel Biodegradable Material to Reduce Emission of Ammonia
… ammonia control material was developed from steam exploded corn cob and its adsorption capacity was studied by packed column and titration method. The packed column studies showed that the maximum absorption capacities of the raw corn cob (RCC) and the steam exploded corn cob (SECC) were …
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