Alkaline and ultrasound assisted alkaline pretreatment for intensification of delignification process from sustainable raw-material
نویسندگان
چکیده
منابع مشابه
Multifunctional Alkaline Pulping, Delignification and Hemicellulose Extraction
In this study, multifunctional alkaline pulping was suggested to produce different pulp grades at one mill site, ranging from high-yield paper pulp to high-purity dissolving pulp. In all process modifications, sulfur was successfully replaced by anthraquinone. Autohydrolysis and alkaline pre-extraction were applied to Eucalyptus globulus wood chips, followed by kraft and soda-AQ pulping. Alkali...
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Furfural residues produced from the furfural industry were investigated as a substrate for lactic acid production by simultaneous saccharification and fermentation (SSF). Alkaline peroxide was used for delignification of furfural residues to improve the final lactic acid concentration. The residue was treated with 1.3% to 1.7% hydrogen peroxide at 80 °C for 1 h with a substrate concentration of...
متن کاملSintered material from alkaline basaltic tuffs
he possibility to obtain sintered material from alkaline basaltic tuffs is demonstrated. The parent rock was milled for 10–15 min, the resulting owder was pressed at 100 MPa and the obtained samples were heat-treated in the range of 1000–1140 ◦C. The sintering behaviour and the phase ormation were studied by pycnometry, dilatometry, DTA, XRD and SEM. The final material was obtained by sintering...
متن کاملEffective alkaline metal-catalyzed oxidative delignification of hybrid poplar
BACKGROUND Strategies to improve copper-catalyzed alkaline hydrogen peroxide (Cu-AHP) pretreatment of hybrid poplar were investigated. These improvements included a combination of increasing hydrolysis yields, while simultaneously decreasing process inputs through (i) more efficient utilization of H2O2 and (ii) the addition of an alkaline extraction step prior to the metal-catalyzed AHP pretrea...
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ژورنال
عنوان ژورنال: Ultrasonics Sonochemistry
سال: 2014
ISSN: 1350-4177
DOI: 10.1016/j.ultsonch.2013.08.001