摘要
利用核磁共振波谱仪(NMR)与气相色谱/质谱联用仪(GC/MS)对重质生物油理化性质进行表征,并应用热重分析仪(TG-DTG)与热裂解仪-气相色谱/质谱联用仪(Py-GC/MS)对重质生物油热解特性进行研究。结果表明:重质生物油主要由芳香族化合物和糖类物质组成。重质生物油在N2氛围下热解主要分为三个阶段:室温~300℃为蒸发段,300~520℃为热解段,520~800℃为成焦段。重质生物油经不同温度热解后,产物种类有明显差异:中温段(低于500℃)热解时,产物种类随温度的升高逐渐增加;高温段(高于500℃)热解时,随着热解温度的提高,产物种类逐渐趋于稳定。
The physicochemical properties of heavy bio-oil were characterized by NMR and GC/MS, and thermogravimetric analyzer(TG-DTG) and pyrolysis instrument-gas chromatography/mass spectrometry(Py-GC/MS) was used to study the pyrolysis characteristics of heavy bio-oil. The results indicate that the heavy bio-oil consists of aromatic compounds and saccharides. The first stage is the volatilization of light compounds from ambient temperature to 300℃. The second stage is the pyrolysis, oxidation and polymerization of the heavy compounds at higher temperature(300-520℃). The last stage is the formation of coke(520-800℃). When the pyrolysis temperature is lower than 500℃, the species of products gradually increases with increasing temperature.When the temperature is higher than 500℃, the species of products tends to be stable with increasing temperature.
作者
罗泽军
胡永华
王雨松
朱谢飞
朱锡锋
LUO Zejun;HU Yonghua;WANG Yusong;ZHU Xiefei;ZHU Xifeng(School of Engineering Science, University of Science and Technology of China, Hefei 230026, Anhui, China;Key Laboratory for Tobacco Chemistry of Anhui Province, China Tobacco Anhui Industrial Co., Ltd.,Hefei 230026, Anhui,China;Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China,Hefei 230026, Anhui,China)
出处
《化工学报》
EI
CAS
CSCD
北大核心
2019年第8期3196-3201,共6页
CIESC Journal
基金
国家重点研发计划项目(2018YFB1501404)
