Key Laboratory of Pulp & Paper Science and Technology Ministry of Education, Shandong Polytechnic University, Jinan 250353, PR China.
Bioresour Technol. 2013 Feb;129:676-9. doi: 10.1016/j.biortech.2012.11.150. Epub 2012 Dec 13.
The thermogravimetric of sugarcane bagasse pretreated by hot-water has been studied in this paper. Results indicated that residual solid pretreatment by hot water could decrease the activation energy of phase 2 (270-350 °C) obviously, which makes the pyrolysis more energy-saving. By hot water pretreatment, the hemicellulose, especially xylose (9.78%/o.d. dry mass at 170 °C and 1 h) was greatly extracted into hydrolyzates liquor. Greatly minimized hemicellulose waste at low temperature during pyrolysis also agreed with biorefinery concept. Therefore, bagasse with hot-water pretreatment should be a good pyrolysis material for value-added material.
本文研究了热水预处理甘蔗渣的热重分析。结果表明，热水预处理残余固体可明显降低第二阶段（270-350°C）的活化能，使热解更加节能。通过热水预处理，半纤维素，特别是木糖（170°C 和 1 小时时的 o.d.干质量为 9.78%）大量提取到水解产物中。在热解过程中，低温下半纤维素的废物大大减少也符合生物炼制的概念。因此，经过热水预处理的甘蔗渣应该是一种很好的增值热解材料。
