文献类型：期刊文献

英文题名：Characterization of woody biomass comminution based on entrained flow gasification

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

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;[2]Liaoning Petrochem Univ, Fushun 113005, Liaoning, Peoples R China

年份：2025

卷号：216

起止页码：124

外文期刊名：CHEMICAL ENGINEERING RESEARCH & DESIGN

收录：;EI(收录号：20250917979771);WOS:【SCI-EXPANDED(收录号:WOS:001439144500001)】；

基金：The authors acknowledge financial support from the Shanghai En-gineering Research Center of Coal Gasification (18DZ2283900) .

语种：英文

外文关键词：Moisture; Woody biomass; Mechanical properties; Hammer mill

摘要：Efficient dense-phase pneumatic conveying in entrained-flow gasification, processes requires biomass feedstocks to be comminuted to millimeter-scale particles. This study investigates the comminution characteristics of four typical woody biomasses sycamore, metasequoia, birch, and pine using a hammer mill with various screen sizes and moisture contents ranging from 0.5 to 16 wt%. The results reveal that the moisture content significantly effects energy demand and particle size distribution, depending on the biomass composition. For a screen size of 1.0 mm, materials with comparable lignin content (sycamore, metasequoia, and birch) at 0.5 wt% moisture exhibited energy demand and D-90 values of 39.4 kWh/t and 605.5 mu m, respectively. For higher lignin content (pine), the energy demands and D-90 values were 55.1 kWh/t and 732.6 mu m. The interplay between moisture and lignin significantly influenced mechanical properties such as bending stress, with pine (>30 % lignin) showing a 61 % reduction in bending stress as moisture increased. Consequently, a predictive model developed to relate energy demand and moisture content achieved a deviation of less than +/- 12 %.