陕西科技大学学报2025，Vol.43Issue(5)：16-22,7.
城市固体废弃物微波辅助热解过程的界面极化效应
Effect of interfacial polarization on microwave-assisted pyrolysis process of municipal solid wastes
摘要
Abstract
This study investigates the mechanism of interfacial polarization during microwave-assisted pyrolysis of urban solid waste and elucidates its effects on pyrolysis efficiency and product distribu-tion.A three-dimensional geometric model was developed by integrating finite element simulation with experimental validation,enabling the simulation of multi-field coupling among electromagnetic,thermal,and fluid fields under microwave conditions.The results demonstrate that interfacial polari-zation induces charge accumulation at the interfaces between heterogeneous particles,which enhances the local electric field to a maximum of 4.0 × 104 V/m.Consequently,the temperature at these con-tact interfaces reaches 880 ℃,considerably surpassing the 700 ℃ observed in non-contact regions.This localized high-temperature effect increases the system's heating rate by 34.1％(to 126.7 ℃/min)and improves the liquid product yield from 46.8％to 57.6％,while also enhancing the relative content of target phenolic compounds from 45.2％to 55.6％.These findings provide a robust theo-retical foundation and technical support for optimizing resource utilization technologies in urban solid waste management.关键词
微波辅助热解/界面极化效应/固体废弃物/数值模拟Key words
microwave-assisted pyrolysis/interfacial polarization effect/solid waste/numeri-cal simulation分类
资源环境引用本文复制引用
李杭酌,王文亮,苗晖,崔洋怡,高虎,侯格格,李新平..城市固体废弃物微波辅助热解过程的界面极化效应[J].陕西科技大学学报,2025,43(5):16-22,7.基金项目
国家自然科学基金项目(32571992) （32571992）
陕西省自然科学基础研究计划项目(2024JC-YBMS-140) （2024JC-YBMS-140）
