煤炭转化2025，Vol.48Issue(5)：105-116,12.DOI:10.19726/j.cnki.ebcc.202505010
基于热重分析的不同空间分布模式下富油煤与油页岩共热解研究
Co-pyrolysis of tar-rich coal and oil shale under different spatial distri-bution patterns based on thermogravimetric analysis
摘要
Abstract
Tar-rich coal is a high-value-added coal resource that integrates the characteristics of coal,oil,and gas.The thermal conversion via pyrolysis process can make full use of its value.In this study,thermogravimetric analysis(TGA)was used to investigate the co-pyrolysis characteristics and synergistic effects of tar-rich coal and oil shale under different spatial distribution patterns.Five spatial distribution configurations—including top-bottom,side-by-side,and mixed—were designed to systematically analyze their influence on weight loss characteristics,synergistic effects,and activation energy during co-pyrolysis.The results indicate that the"coal top-shale bottom"and"coal-shale mixed"spatial distribution patterns exhibite the highest weight loss rates and synergistic effect evalua-tion indices,reaching 27.09%and 27.08%,and 0.035 9 and 0.035 5,respectively.Under the"coal top-shale bottom"pattern,the weight loss rate during the main pyrolysis stage initially increases and then decreases,while the activation energy of the co-pyrolysis reaction is reduced.This suggests that the underlying oil shale acts as a solid hydrogen donor,promoting the release of hydrocarbon volatiles from the upper tar-rich coal layer.This study provides a theoretical basis for the synergistic and effi-cient utilization of rich-oil coal and oil shale,while also proposing a feasible approach to minimizing the impact of ash content by optimizing spatial distribution patterns.关键词
空间分布模式/共热解/热重分析/富油煤/油页岩Key words
spatial distribution pattern/co-pyrolysis/thermogravimetric analysis/tar-rich coal/oil shale分类
化学化工引用本文复制引用
曹虎生,肖建生,杨甫,李长聪,马祖飞,朱占荣,吴雷,周军..基于热重分析的不同空间分布模式下富油煤与油页岩共热解研究[J].煤炭转化,2025,48(5):105-116,12.基金项目
国家自然科学基金资助项目(22578348)、陕西省自然科学基础研究计划一般项目(2024JC-YBQN-0090)、陕西省教育厅重点科学研究计划项目(24JS028)、陕西省煤田地质集团重大科技专项(SMDZ-2023CX-5,SMDZ-2024-20)和中国中冶重点研发项目"181计划"重大研发项目. （22578348）
