CIESC Journal ›› 2019, Vol. 70 ›› Issue (8): 3196-3201.DOI: 10.11949/0438-1157.20190320

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Physicochemical properties and pyrolysis characteristics of heavy bio-oil

Zejun LUO1(),Yonghua HU2,Yusong WANG3,Xiefei ZHU1,Xifeng ZHU1()   

  1. 1. School of Engineering Science, University of Science and Technology of China, Hefei 230026, Anhui, China
    2. Key Laboratory for Tobacco Chemistry of Anhui Province, China Tobacco Anhui Industrial Co. , Ltd. ,Hefei 230026, Anhui, China
    3. Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, China
  • Received:2019-04-01 Revised:2019-05-07 Online:2019-08-05 Published:2019-08-05
  • Contact: Xifeng ZHU

重质生物油理化性质及其热解特性研究

罗泽军1(),胡永华2,王雨松3,朱谢飞1,朱锡锋1()   

  1. 1. 中国科学技术大学工程科学学院,安徽 合肥 230026
    2. 安徽中烟工业有限责任公司烟草化学安徽省重点实验室,安徽 合肥 230026
    3. 中国科学技术大学合肥微尺度物质科学国家研究中心,安徽 合肥 230026
  • 通讯作者: 朱锡锋
  • 作者简介:罗泽军(1995—),男,硕士研究生,<email>Luozejun@mail.ustc.edu.cn</email>
  • 基金资助:
    国家重点研发计划项目(2018YFB1501404)

Abstract:

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.

Key words: heavy bio-oil, NMR, TG-DTG, Py-GC/MS, pyrolysis

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。

关键词: 重质生物油, NMR, TG-DTG, Py-GC /MS, 热解

CLC Number: