摘要
通过热重-红外联用技术,研究长江下游地区5个常见树种在纯氮气氛围中、40℃/min升温条件下的热解过程的特点。进气速率为40 m L/min,温度范围为30~800℃,得到样品的热重(TG)和微商热重(DTG)曲线。对产生的烟气进行红外光谱解析。结果表明,样品的热解反应在180℃时气体排放大量增加,可分为水分析出、快速热解、炭化3个过程。热解产物主要有CO、CO_2、酯类、酸、醛等物质。
Based on thermogravimetric analyzer coupled with an in-frared spectroscopy,the characteristics of 5 common trees branch-es and leaves which collected in the lower reach of Yangzi River were studied under the conditions of stream of pure N2(40 mL/min)and temperature from 30℃to 800℃.The heating rate was 40℃/min.The TG and DTG curves of samples were obtained.The FT-IR analysis on the smoke wascarried out.The results showed that within the temperature ascending period,a rapid rise of smoke emission was observed when temperature reached to 180℃.The pyrolysis process of branches and leaves included three stages,namely drying,fast-pyrolysis and carbonization.There were car-bon dioxide,carbon monoxide,esters,aldehydes,acids produced during the pyrolysis process.
作者
周涧青
苏文静
魏洪珉
李晨韵
刘晓东
张思玉
ZHOU Jian-qing;SU Wen-jing;WEI Hong-min;LI Chen-yun;LIU Xiao-dong;ZHANG Si-yu(Department of Forest Fire Prevention and Control,Nanjing Forestry Police College,Jiangsu Nanjing 210023,China;Engi.neering Research Center for Forest Fire Prevention and Control of State Forestry Administration,State Forestry Administration of the People’s Republic of China,Jiangsu Nanjing 210023,China;College of Fire Engineering,Southwest Forestry University,Yun.nan Kunming 650224,China;Key Laboratory of Forest Disaster Warning and Control,Yunnan Kunming 650224,China;College of Forestry,Nanjing Forestry University,Jiangsu Nanjing 210023,China;Co-innovation Center for Sustainable Forestry in Southern China,Nanjing Forestry University,Jiangsu Nanjing 210023,China;The Third Section of Urban Planning,Planning and Design Academy of Forest Products Industry,State Forestry Administration of the People’s Republic of China,Beijing 100010,China;College of Forestry,Beijing Forestry University,Beijing 100083,China;Key Laboratory for Silviculture and Conserva-tion of Ministry of Education,Beijing Forestry University,Beijing 100083,China)
出处
《消防科学与技术》
CAS
北大核心
2018年第3期313-315,共3页
Fire Science and Technology
基金
中央高校基本科研业务费专项资金项目(LGYB201705)
国家自然科学基金青年基金(31500532)
江苏省自然科学基金青年项目(BK20151010)
江苏省自然科学基金项目(BK20141501)
2017中国消防协会科学技术年会"青年消防学者论坛"交流论文
关键词
热解
升温速率
红外光谱
热红联用
热重
pyrolysis
heating rate
infrared spectroscopy
TG-FT-IR
thermogravimetric
