Hot Water Pretreatment of Boreal Aspen Woodchips in a Pilot Scale Digester
AbstractHot water extraction of aspen woodchips was treated at about 160 °C for 2 h with a liquor-to-solid ratio of 4.76:1 in a 1.84 m3 batch reactor with external liquor circulation. Both five-carbon and six-carbon sugars are obtained in the extraction liquor. Xylose and xylooligomers are the main five-carbon sugar in the hot water extract, which reached a maximum concentration of 0.016 mol/L, and 0.018 mol/L, respectively. Minor monosaccharides including galactose, mannose, rhamnose, glucose, and arabinose are also obtained during the hot water extraction. Rhamnose is the main six-carbon sugar in the extraction liquor, which has a maximum concentration of 0.0042 mol/L. The variations of acetyl groups and formic acid are investigated due to their catalytic effect on the extraction reactions. Zeroth-order kinetics models are found to be adequate in describing the dissolved solids, acids, xylose, and xylooligomers. View Full-Text
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Yan, J.; Liu, S. Hot Water Pretreatment of Boreal Aspen Woodchips in a Pilot Scale Digester. Energies 2015, 8, 1166-1180.
Yan J, Liu S. Hot Water Pretreatment of Boreal Aspen Woodchips in a Pilot Scale Digester. Energies. 2015; 8(2):1166-1180.Chicago/Turabian Style
Yan, Jipeng; Liu, Shijie. 2015. "Hot Water Pretreatment of Boreal Aspen Woodchips in a Pilot Scale Digester." Energies 8, no. 2: 1166-1180.