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首页> 外文期刊>Journal of Analytical & Applied Pyrolysis >Pyrolysis study on cattle manure: From conventional analytical method to online study of pyrolysis photoionization time-of-flight mass spectrometry
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Pyrolysis study on cattle manure: From conventional analytical method to online study of pyrolysis photoionization time-of-flight mass spectrometry

机译：牛粪的热解性研究：从传统分析方法到热解光离子飞行时间质谱中的在线研究

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摘要

Cattle manure is a kind of abundant agriculture waste but potential renewable resource to be converted into fuel by pyrolysis. The pyrolysis behavior of cattle manure was analyzed by three methods in this work: thermogravimetric analyzer (TG), pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) and pyrolysis photoionization time-of-flight mass spectrometry (Py-PI-TOFMS). The pyrolysis process of cattle manure included four stages, dehydration stage, lignocellulose decomposition stage, lignin and protein decomposition stage, char and mineral matter decomposition stage. The products were mainly classified into six groups: ketones, aldehydes, phenolic compounds, acids, hydrocarbons and N-containing compounds. Based on the time-evolved profiles and temperature-programmed profiles, the characteristics of these major products were analyzed and discussed. Maillard reaction has great effects on the pyrolysis process of cattle manure because cellulose can easily react with protein to produce abundant Amadori products and then generate cyclopentanes and furanmethanol. In addition, some Amadori products and amino acids can also be cyclized to generate N-heterocycle compounds like pyrroles and pyrazines. The decomposition of lignin basic units with more methoxy groups require higher reaction temperature, and the removal of hydroxy and methoxy group on phenols mainly occurred at around 350 degrees C. Furthermore, primary decomposition pathways of cattle manure were also proposed and discussed.
机译：牛粪是一种丰富的农业垃圾，但潜在的可再生资源通过热解来转化为燃料。通过这项工作中的三种方法分析了牛粪的热解行为：热重分析仪（Tg），热解 - 气相色谱/质谱（Py-GC / MS）和热解光离子飞行时间质谱（Py-Pi- TOFMS）。牛粪的热解过程包括四个阶段，脱水阶段，木质纤维素分解阶段，木质素和蛋白质分解阶段，炭和矿物质分解阶段。该产品主要分为六组：酮，醛，酚类化合物，酸，碳氢化合物和含N的化合物。基于时间演进的简档和温度编程的轮廓，分析并讨论了这些主要产品的特征。毛泽东反应对牛粪的热解过程具有很大的影响，因为纤维素可以容易地与蛋白质反应以产生丰富的Amadori产品，然后产生环戊烷和呋喃甲醇。此外，还可以将一些Amadori产品和氨基酸环化以产生吡咯和吡嗪等N-杂环化合物。具有更多甲氧基的木质素碱性单元的分解需要更高的反应温度，并在酚醛化上除去羟基和甲氧基的除去主要发生在350℃左右。此外，还提出并讨论了牛粪的主要分解途径。

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  • 来源
    《Journal of Analytical & Applied Pyrolysis》 |2020年第10期|104916.1-104916.10|共10页
  • 作者

    He Sirong; Cao Congcong; Wang Jinglan; Yang Jiuzhong; Cheng Zhanjun; Yan Beibei; Pan Yang; Chen Guanyi;

  • 作者单位

    Tianjin Univ Sch Environm Sci & Engn Tianjin 300072 Peoples R China;

    Tianjin Univ Sch Environm Sci & Engn Tianjin 300072 Peoples R China;

    Tianjin Univ Sch Environm Sci & Engn Tianjin 300072 Peoples R China;

    Univ Sci & Technol China Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Tianjin Univ Sch Environm Sci & Engn Tianjin 300072 Peoples R China|Tianjin Univ Tianjin Engn Res Ctr Organ Wastes Safe Disposal & Tianjin Key Lab Biomass Waste Utilizat Key Lab Efficient Utilizat Low & Medium Energy Tianjin 300072 Peoples R China;

    Tianjin Univ Sch Environm Sci & Engn Tianjin 300072 Peoples R China|Tianjin Univ Tianjin Engn Res Ctr Organ Wastes Safe Disposal & Tianjin Key Lab Biomass Waste Utilizat Key Lab Efficient Utilizat Low & Medium Energy Tianjin 300072 Peoples R China;

    Univ Sci & Technol China Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Tianjin Univ Commerce Sch Mech Engn Tianjin 300134 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Cattle manure; Pyrolysis; Products analysis; Thermogravimetric; Analyzer; Pyrolysis-gas chromatography/mass spectrometry; Pyrolysis photoionization time-of-flight mass spectrometry;

    机译：牛粪;热解;产品分析;热重分析;分析仪;热解 - 气相色谱/质谱;热解光离心飞行时间的质谱法;

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