• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International symposium on emerging technologies of pulping and papermaking;ISETPP >PYROLYSIS CHARACTERISTICS OF WHEAT STRAW RESIDUE FROM BIOETHANOL PRODUCTION, KLASON LIGNIN AND ORIGINAL WHEAT STRAW USING TG-FTIR TECHNIQUE
【24h】

PYROLYSIS CHARACTERISTICS OF WHEAT STRAW RESIDUE FROM BIOETHANOL PRODUCTION, KLASON LIGNIN AND ORIGINAL WHEAT STRAW USING TG-FTIR TECHNIQUE

机译：TG-FTIR技术分析生物乙醇生产中小麦秸秆残留物，克拉森木质素和原麦秸秆的热解特性

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Wheat straw residue (WSR) from bioethanol production is an important biomass waste. However, the residue has not been fully used and burned directly. In the study, the pyrolysis behavior has been analyzed using thermogravimetry coupled with Fourier transform infrared spectroscopy (TG-FTIR) technique at the heating rate of 10 °C /min under nitrogen atmosphere. At the same time, the pyrolysis behavior of the WSR was compared with the original wheat straw (OWS) and the Klason lignin (KL) prepared from the WSR under the same conditions. The results show that the pyrolysis peaks are 330.16, 371.38 and 333.96 °C for the WSR, KL and OWS respectively, with the corresponding maximum pyrolysis rates of 0.2838, 0.2868 and 0.8003 mg/min. With the increase of acid insoluble lignin content, the biomass is more difficult to pyrolyze, resulting in more residue at the final temperature. The main volatile compounds detected by FTIR are similar for the three biomasses, including CO2, CO, H2O, CH4, HCHO, CH3OH, hydrocarbon and aromatic compounds. The kinetic studies demonstrate that the reaction order is three for the WSR within the pyrolysis temperature range of 285.13-408.5 °C. Both the KL and OWS exhibit two pyrolysis reaction orders within the corresponding pyrolysis temperature range of 220.30-566.58 °C, and 208.64-428.61 °C. The activation energy and the frequency factor increase with the decrease of acid insoluble lignin content for the three materials.
机译：生物乙醇生产产生的小麦秸秆残留物（WSR）是重要的生物质废物。但是，残渣尚未充分利用并直接燃烧。在这项研究中，已经使用热重分析法和傅立叶变换红外光谱（TG-FTIR）技术在氮气气氛下以10°C / min的加热速率分析了热解行为。同时，在相同条件下，将WSR的热解行为与原始WST和由WSR制备的Klason木质素（KL）进行了比较。结果表明，WSR，KL和OWS的热解峰分别为330.16、371.38和333.96°C，相应的最大热解速率为0.2838、0.2868和0.8003 mg / min。随着酸不溶性木质素含量的增加，生物质更难以热解，从而在最终温度下产生更多的残留物。 FTIR检测到的主要挥发性化合物在三种生物质中相似，包括CO2，CO，H2O，CH4，HCHO，CH3OH，烃和芳族化合物。动力学研究表明，在285.13-408.5°C的热解温度范围内，WSR的反应顺序为3。 KL和OWS均在220.30-566.58°C和208.64-428.61°C的相应热解温度范围内表现出两个热解反应顺序。三种材料的活化能和频率因数随酸不溶性木质素含量的降低而增加。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号