Study on effectiveness of flow parameters in evaluating discharge performance of sawdust-coal mixtures

作     者：Yang, Yunfei Guo, Xiaolei Lu, Haifeng Liu, Haifeng 

作者机构：East China Univ Sci & Technol Shanghai Engn Res Ctr Coal Gasificat Shanghai 200237 Peoples R China 

出 版 物：《BIOMASS & BIOENERGY》 (Biomass Bioenergy)

年 卷 期：2025年第194卷

核心收录：

学科分类：0820[工学-石油与天然气工程] 080703[工学-动力机械及工程] 0828[工学-农业工程] 08[工学] 0807[工学-动力工程及工程热物理] 0836[工学-生物工程] 

基　　金：National Nat-ural Science Foundation of China Shanghai Engi-neering Research Center of Coal Gasification [18DZ2283900] 

主　　题：Sawdust-coal mixture Biomass mixing ratio Flow parameter Discharge rate 

摘      要：Biomass-coal co-gasification technology is a new approach that considers both energy demand and carbon emission reduction policies. A comprehensive understanding of flow properties of the biomass-coal mixture is important for the resolution of flow problems in the pneumatic conveying unit of the entrained flow gasification process. However, inconsistency exists between the laws obtained from different characterization methods of the flow properties. The discharge rate of the sawdust-coal mixture prepared by the co-milling method showed a decrease of about 21.4 % when the biomass mixing ratio reached 20 %. Based on the comparison of different characterization methods, the flow parameters that can effectively evaluate the discharge performance of the mixture were analyzed. In addition, an empirical model of the discharge rate with respect to the biomass mixing ratio was established with an error within +/- 15 %, which provides a reference for the mixing of biomass in cogasification process.