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Evaluation of catalytic pyrolysis of cassava rhizome by principal component analysis

机译：主成分分析评价木薯根茎的催化热解

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摘要

Rhizome of cassava plants (Manihot esculenta Crantz) was catalytically pyrolysed at 500 ℃ using analytical pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) method in order to investigate the relative effect of various catalysts on pyrolysis products. Selected catalysts expected to affect bio-oil properties were used in this study. These include zeolites and related materials (ZSM-5, Al-MCM-41 and Al-MSU-F type), metal oxides (zinc oxide, zirconium (IV) oxide, cerium (IV) oxide and copper chro-mite) catalysts, proprietary commercial catalysts (Criterion-534 and alumina-stabilised ceria-MI-575) and natural catalysts (slate, char and ashes derived from char and biomass). The pyrolysis product distributions were monitored using models in principal components analysis (PCA) technique. The results showed that the zeolites, proprietary commercial catalysts, copper chromite and biomass-derived ash were selective to the reduction of most oxygenated lignin derivatives. The use of ZSM-5, Criterion-534 and Al-MSU-F catalysts enhanced the formation of aromatic hydrocarbons and phenols. No single catalyst was found to selectively reduce all carbonyl products. Instead, most of the carbonyl compounds containing hydroxyl group were reduced by zeolite and related materials, proprietary catalysts and copper chromite. The PCA model for carboxylic acids showed that zeolite ZSM-5 and Al-MSU-F tend to produce significant amounts of acetic and formic acids.
机译：利用分析型热解-气相色谱/质谱法（Py-GC / MS）在500℃下对木薯植物的根茎（Manihot esculenta Crantz）进行催化热解，以研究各种催化剂对热解产物的相对影响。在这项研究中使用了预期会影响生物油特性的精选催化剂。其中包括沸石和相关材料（ZSM-5，Al-MCM-41和Al-MSU-F型），金属氧化物（氧化锌，氧化锆（IV），氧化铈（IV）和铜铬铁矿）催化剂，专有的商业催化剂（Criterion-534和氧化铝稳定的二氧化铈-MI-575）和天然催化剂（板岩，炭和来自炭和生物质的灰）。使用主成分分析（PCA）技术中的模型监控热解产物的分布。结果表明，沸石，专有的商业催化剂，亚铬酸铜和生物质衍生的灰分对大多数含氧木质素衍生物的还原具有选择性。 ZSM-5，Criterion-534和Al-MSU-F催化剂的使用增强了芳烃和苯酚的形成。没有发现单一催化剂选择性地还原所有羰基产物。取而代之的是，大多数含羟基的羰基化合物被沸石和相关材料，专有催化剂和亚铬酸铜还原。羧酸的PCA模型表明，沸石ZSM-5和Al-MSU-F倾向于产生大量的乙酸和甲酸。

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  • 来源
    《Fuel》 |2010年第1期|244-253|共10页
  • 作者

    Adisak Pattiya; James O. Titiloye; A.V. Bridgwater;

  • 作者单位

    Bio-Energy Research Laboratory, Faculty of Engineering, Mahasarakham University, Khantaravichai, Mahasarakham 44150, Thailand;

    Bioenergy Research Croup, Chemical Engineering and Applied Chemistry, Aston University, Birmingham B4 7ET, United Kingdom;

    Bioenergy Research Croup, Chemical Engineering and Applied Chemistry, Aston University, Birmingham B4 7ET, United Kingdom;

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

    cassava rhizome; analytical pyrolysis; principal component analysis (PCA); catalysts;

    机译：木薯根茎;分析热解主成分分析（PCA）;催化剂;

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