文献类型：期刊文献

英文题名：Impact of reactive drying on physiochemical and comminution characteristics of agroforestry biomass

作者：Wang, Shicheng[1,2];Guo, Xiaolei[1,2];Zhang, Xu[1,2];Lu, Haifeng[1,2];Liu, Haifeng[1,2,3]

机构：[1]East China Univ Sci & Technol, Natl Energy Coal Gasificat Technol Res & Dev Ctr, POB 272, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Engn Res Ctr Coal Gasificat, POB 272, Shanghai 200237, Peoples R China;[3]Liaoning Petrochem Univ, Fushun 113001, Liaoning, Peoples R China

年份：2025

卷号：248

外文期刊名：RENEWABLE ENERGY

收录：;EI(收录号：20251618239266);WOS:【SCI-EXPANDED(收录号:WOS:001473292300001)】；

基金：The authors acknowledge financial supports from the Shanghai En-gineering Research Center of Coal Gasification (18DZ2283900) . The authors would like to thank the workers in Shiyanjia Lab for the 13 C NMR spectra test.

语种：英文

外文关键词：Agroforestry biomass; Reactive drying; Comminution; Chemical structure

摘要：Prior to biomass gasification, the pretreatment process consumes substantial consumption of equivalent energy from feedstock, a careful trade-off is necessary among the costs of moisture removal, the power consumption for comminution, and the operational benefits of handling dried feedstock. This study focused on the reactive drying process of eucalyptus, corn stalks, and Phyllostachys edulis those were pretreated at a temperature range of 150 degrees C-200 degrees C under inert conditions. The physicochemical and comminution characteristics of three agroforestry biomass after reactive drying were comparatively analyzed, revealing the mechanisms behind the mechanical impacts of chemical changes. The results indicated that the reactive drying primarily involved moisture removal and slight depolymerization of hemicellulose. By analyzing FTIR, the removal of hydroxyl groups was attributed to the release of internal water (105 degrees C-160 degrees C) and the depolymerization of hemicellulose (160 degrees C-200 degrees C). Based on 13C NMR results, the reactive drying led to only minor changes in carbon structures, corresponding to the -CH3 carbon of the acetyl units of hemicellulose and the C-2,3,5 of carbohydrates. From a microscopic molecular view, the changes were attributed to the depolymerization of hemicellulose, which reduced the fibrous nature between particles.