文献类型：期刊文献

英文题名：Experimental study on biomass reactive drying based on three major components: Cellulose, hemicellulose, and lignin

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

机构：[1]East China Univ Sci & Technol, Natl Energy Res Ctr Coal Gasificat Technol, Carbon containing Waste Recycling Engn Ctr, POB 272, Shanghai 200237, Peoples R China

年份：2025

卷号：504

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20245217568600);WOS:【SCI-EXPANDED(收录号:WOS:001395265900001)】；

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：Cellulose; Hemicellulose; Lignin; Reactive drying; Chemical structure; Mechanical properties

摘要：Reactive drying is a promising method for optimizing the drying and comminution of biomass. This paper investigated the reactive drying mechanism and the mechanical properties of three major components of biomass: cellulose (CL), hemicellulose (HL), and lignin (LN). The results indicated that HL was most significantly affected by temperature, with weight loss observed in the following descending order: HL > LN > CL. Based on FTIR and C-13 NMR analyses, the chemical structure changes of these three components differed and the reactive drying mechanism was revealed. Specifically, the temperature range of 105-150 degrees C was primarily associated with dehydration reactions, while processes such as depolymerization of CL and HL as well as decarboxylation of LN occurred within the temperature range of 150-200 degrees C. The Young's modulus at different temperatures was measured using AFM, revealing that the Young's modulus changes were ranked as HL > CL > LN. The impact of reactive drying on Young's modulus could be attributed to the breakage of molecular chains due to the depolymerization of HL and CL, in addition to the thermal movement of the molecular chains.