化工进展 ›› 2018, Vol. 37 ›› Issue (09): 3379-3385.DOI: 10.16085/j.issn.1000-6613.2017-1964

• 能源加工与技术 • 上一篇    下一篇

HZSM-5催化条件下反应温度对热解油品质影响规律

李萍1, 王丽红2, 司慧1, 王一青2   

  1. 1 北京林业大学工学院, 北京 100083;
    2 山东理工大学山东省清洁能源工程技术研究中心, 山东 淄博 255091
  • 收稿日期:2017-09-18 修回日期:2017-10-30 出版日期:2018-09-05 发布日期:2018-09-05
  • 通讯作者: 司慧,教授,博士生导师,主要从事生物质能源利用技术等方面的研究。
  • 作者简介:李萍(1992-),男,硕士研究生,主要从事生物质热解液化技术研究。
  • 基金资助:
    北京市科技计划(Z161100001316004)及国家自然科学基金青年项目(51406109)。

Effect of reaction temperature on pyrolysis oil quality over HZSM-5 catalyst

LI Ping1, WANG Lihong2, SI Hui1, WANG Yiqing2   

  1. 1 School of Technology, Beijing Forestry University, Beijing 100083, China;
    2 Shandong Research Center of Engineering and Technology for Clean Energy, Shangdong University of Technology, Zibo 255091, Shandong, China
  • Received:2017-09-18 Revised:2017-10-30 Online:2018-09-05 Published:2018-09-05

摘要: 在酸性分子筛HZSM-5催化条件下,以玉米秸秆粉为原料,考察了反应温度对热解油品质的影响。在自制流化床热裂解装置上,选取了5种反应温度(450℃、500℃、550℃、600℃及650℃),进行催化热裂解实验,探究热解油含水率、pH和化学组分的变化规律。结果表明:在HZSM-5催化剂作用下,热解油含水率与pH随反应温度线性增加,酸性随着含水率的升高而减弱(pH增大);热解油中酸类、酚类、酯类及醇类相对含量比酮类、醛类及糖类受反应温度影响更加明显;在HZSM-5催化剂与物料质量比1:10,反应温度为500℃时,热解油品质较好,腐蚀性低、稳定性高,酚类物质种类丰富、相对含量高。研究结果为HZSM-5催化条件下反应温度调控、改善热解油品质提供了一定的科学依据,有利于热解油后续高值化、环保化利用。

关键词: 生物质, 流化床, 热解油, 催化作用, 反应温度, 组分分析

Abstract: The effect of reaction temperatures on the quality of pyrolysis oil was investigated over acidic HZSM-5 zeolite, using corn stalk powder as raw material. In the self-made fluidized bed pyrolysis device, five reaction temperatures (450℃, 500℃, 550℃, 600℃ and 650℃) were tested in the catalytic pyrolysis experiments to study the moisture content, pH and chemical composition of pyrolysis oil. The results showed that, under the action of HZSM-5 catalyst, the moisture content and pH of pyrolysis oil increased linearly with the reaction temperature, and the acidity decreased with the increase of water content (pH increased); the content of phenols, esters and alcohols was more sensitive than that of ketones, aldehydes and sugars by the reaction temperature; under the conditions of HZSM-5 catalyst and material mass ratio of 1:10, the reaction temperature was 500℃, oil quality was in a good state, corrosive low, high stability, rich phenolic species and high relative content. The results provided a scientific evident that the reaction temperature controlled and improved the quality of pyrolysis oil over HZSM-5 catalyst, which will be beneficial to the subsequent high-value and environmental protection utilization of pyrolysis oil.

Key words: biomass, fluidized-bed, pyrolysis oil, catalysis, reaction temperature, component analysis

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