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生物质化学工程 ›› 2020, Vol. 54 ›› Issue (2): 27-32.doi: 10.3969/j.issn.1673-5854.2020.02.005

• 研究报告 • 上一篇    下一篇

基于PY-GC/MS技术板栗壳快速热裂解特性的研究

黄萍,贾亮亮,李健*(),李冬兵   

  1. 西北农林科技大学 林学院, 陕西 咸阳 712100
  • 收稿日期:2019-11-26 出版日期:2020-03-30 发布日期:2020-04-16
  • 通讯作者: 李健 E-mail:ericlee99@nwsuaf.edu.cn
  • 作者简介:黄萍(1994-),女,湖北孝感人,硕士生,主要从事生物质热解研究工作
  • 基金资助:
    中央高校基本科研业务费(2452017299)

Characteristics of Fast Pyrolysis of Chestnut Shell Based on PY-GC/MS Technology

Ping HUANG,Liangliang JIA,Jian LI*(),Dongbing LI   

  1. College of Forestry, Northwest A&F University, Xianyang 712100, China
  • Received:2019-11-26 Online:2020-03-30 Published:2020-04-16
  • Contact: Jian LI E-mail:ericlee99@nwsuaf.edu.cn
  • Supported by:
    中央高校基本科研业务费(2452017299)

摘要:

为探究板栗壳快速热裂解特性,利用热裂解-气相色谱/质谱联用仪(Py-GC/MS)分别对板栗壳进行单级和双级快速热裂解,并对裂解产物进行定性定量分析。结果表明单级快速热裂解时,温度越高,产物种类数越多、产量越高,而双级快速热裂解时第一级热裂解温度对总产量影响不大,但第一级温度越高种类数越多。热裂解产物主要是含氮类、糖类和酸类化合物,其中D-阿洛糖和醋酸含量最高。在单级快速热裂解温度为500 ℃时D-阿洛糖在总产物中的量最高达到17%,双级快速热裂解第一级热裂解温度为450 ℃、第二级热裂解温度为600 ℃时醋酸在总产物中的量最高可达15.9%。

关键词: 生物质, D-阿洛糖, 醋酸, 热裂解, Py-GC/MS

Abstract:

In order to investigate the fast pyrolysis characteristics of chestnut shells, single-stage and two-stage fast pyrolysis were carried out by pyrolysis-gas chromatography/mass spectrometry(Py-GC/MS), and the pyrolysis products were qualitatively and quantitatively analyzed. The results showed that during single-stage fast pyrolysis the total number of product species and yield increased with the pyrolysis temperature. In the two-stage fast pyrolysis, the temperature of the first stage had little effect on the total product yield, but a higher temperature gave more product species. The main components of the pyrolysis products were nitrogenous, sugars or acids, of which D-allose and acetic acid were the highest. With the single-stage fast pyrolysis temperature of 500 ℃ the content of D-allose could go up to 17%. For the two-stage pyrolysis, when the first-step and second-step temperatures were 450 ℃ and 600 ℃, respectively, the content of acetic acid could go up to 15.9%.

Key words: biomass, D-allose, acetic acid, pyrolysis, Py-GC/MS

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