重庆理工大学学报2025，Vol.39Issue(23)：210-217,8.DOI:10.3969/j.issn.1674-8425(z).2025.12.026
半导体激光加热的生物质快速热解研究
Research on rapid pyrolysis of biomass by semiconductor laser heating
摘要
Abstract
In rapid pyrolysis of biomass,heating rate and thermal uniformity are the main factors affecting product yield and quality.In this paper,a rapid pyrolysis experimental platform with a maximum heating rate of 200℃/s is independently developed by adopting a semiconductor laser heating technology.The rapid pyrolysis weight loss characteristics and kinetic laws of the poplar wood under different heating rates and final pyrolysis temperatures are investigated.Thermogravimetric analysis shows high heating rates markedly cut the pyrolysis time of poplar wood and there is no clear boundary between the complete release of moisture and volatile matter.Moreover,a critical heating rate of β=100 K/s is identified.The differential thermogravimetric curves exhibit a single sharp peak with a narrowed pyrolysis interval under high heating rates,whereas double peaks occur at low heating rates.The distributed activation energy model is employed for pyrolysis kinetic analysis.Results show the change of activation energy is divided into four distinct stages.Both the activation energy and pre-exponential factor decrease with the rise of weight-loss rate,demonstrating the kinetic compensation effect inherent in laser-assisted rapid pyrolysis of poplar wood.关键词
生物质/杨木/快速热解/激光加热/升温速率Key words
biomass/poplar wood/rapid pyrolysis/laser heating/heating rate分类
化学化工引用本文复制引用
YANG Shuo,WANG Tianyu,MA Rui,WANG Shaohui,LUO Jintao,LIU Zhanzhi,CUI Changchun,CUI Jie,LIU Zhe..半导体激光加热的生物质快速热解研究[J].重庆理工大学学报,2025,39(23):210-217,8.基金项目
辽宁省教育厅高等学校基本科研业务项目(LJ242411632102,JYTMS20230299) （LJ242411632102,JYTMS20230299）
辽宁省科学技术厅项目(2023JH2/101700256,2023JH2/101700257) （2023JH2/101700256,2023JH2/101700257）
