基于热重-质谱分析的榆木/低阶煤共热解特性研究
Study on co-pyrolysis characteristics of elm/low rank coal based on thermogravimetric mass spectrometry-thermogravimetric analysis
梅艳阳 1侯原浩 1柴鸿川 1陈莹 1郑炎鑫 1侯靖凡1
作者信息
- 1. 河南理工大学机械与动力工程学院,河南 焦作 454003
- 折叠
摘要
为了研究烘焙对共热解行为的影响,以榆木(E)、250℃烘焙后榆木(ET250)和低阶煤(L)为原料,利用热重-质谱联用分析仪(TG-MS)进行榆木/低阶煤不同质量比例下(1∶1、1∶3、3∶1)的共热解实验.TG分析结果表明,相比E和ET250,L热解需要更高的温度和更长的时间;但当将生物质与低阶煤共热解后,共热解所需的温度和时间都随着生物质质量比的增加而减小;在共热解过程中,E与L的失重特性曲线相互影响,而ET250在热解过程中与L的失重特性基本一致,说明经250℃烘焙后榆木与低阶煤的品质相似.
Abstract
In order to study the effect of torrefying on co-pyrolysis behavior,the co-pyrolysis experiments of elmwood(E),torrefied elmwood(ET250)at 250℃ and low-rank coal(L)were carried out by using thermogray-mass spectrometry(TG-MS)at different mass ratios(1∶1,1∶3,3∶1).TG results show that compared with E and ET250,the pyrolysis of L requires a higher temperature and a longer time.However,when biomass is co-pyrolyzated with low-rank coal,the temperature and time required for co-pyrolysis decrease with the increase of biomass mass ratio.During the co-pyrolysis process,the weight loss characteristics of E and L influence each other,while the weight loss characteristics of ET250 and L are basically the same,indicating that the quality of elm and low-rank coal after torrefying at 250℃ is similar.The results can provide reference for the subsequent design of pyrolysis equipment.
关键词
生物质/低阶煤/烘焙/共热解Key words
biomass/low rank coal/torrefaction/co-pyrolysis引用本文复制引用
基金项目
国家自然科学基金资助项目(52206243)
河南省科技攻关项目(222102320277)
出版年
2024
NETL
NSTL
万方数据