摘要
随着风电行业高速发展,我国淘汰废弃风机叶片量逐年增加,带来巨大的环保压力。对此,开展了不同温度中气氛对废弃风机叶片热转化过程中气、液、固产物生成特性影响研究,为今后热回收法处置风机叶片提供参考。结果表明:在N_(2)和CO_(2)气氛中,可燃气CH4产量800℃下达到最高,而可燃气CO产量随温度上升而升高;各气氛中焦油成分主要为对异丙烯基苯酚、对异丙基苯酚和双酚A3种。实验中也发现气氛中CO_(2)的存在有效阻碍了高温时焦油中多环芳烃(PAHs)的生成,有利于焦油的后续处理。实验中还发现在低温(400℃)时Air和CO_(2)气氛下焦炭产率相比于N_(2)气氛较高,而在更高温度(600℃及以上)中结果相反,可能是由于低温下不同气氛中的焦炭芳香化程度不同引起。
With the rapid development of wind power industry,the number of wasted wind turbine blades increased significantly year by year,which brings great environment pressure.Against this problem,the influence of atmosphere on the generation characteristics of gas,liquid and solid products of wasted wind turbine blades during thermal treatment at different temperatures was studied,to provide reference for thermal recovery strategies.The results showed that,in N_(2)and CO_(2)atmospheres,the production of combustible CH4reached the highest at 800℃,that of CO increased with temperature.Tar products in each atmosphere mainly consisted of p-isopropenyl phenol,p-isopropyl phenol and bisphenol A.Moreover,it was found in the experiment that,at high temperature,CO_(2)in the atmosphere effectively prevented the formation of polycyclic aromatic hydrocarbons(PAHs)in tar,which is helpful to subsequent treatment of tar.It is also found that,the coke yield in air and CO_(2)atmosphere was higher than that in N_(2)atmosphere,however,at higher temperatures(600℃and above),the results were opposite.This may be due to different carbonization levels in different atmospheres at low temperatures.
作者
李良钰
熊小鹤
冯敬武
张京晶
谭厚章
王毅斌
LI Liangyu;XIONG Xiaohe;FENG Jingwu;ZHANG Jingjing;TAN Houzhang;WANG Yibin(MOE Key Laboratory of Thermo-FluidScience and Engineering,Xi’an Jiaotong University,Xi’an 710049,China)
出处
《热力发电》
CAS
CSCD
北大核心
2023年第3期94-101,共8页
Thermal Power Generation
基金
国家自然科学基金项目(51906198,51876162)。
关键词
固体废弃物
风机叶片
玻璃钢
热解
气氛
solid wastes
wind turbine blades
glass fiber reinforced plastics
pyrolysis
atmosphere
