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首页> 外文期刊>Clean technologies and environmental policy >Hydroesterification of bio-oils over HZSM-5, BETA and Y zeolites
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Hydroesterification of bio-oils over HZSM-5, BETA and Y zeolites

机译：HZSM-5，BETA和Y沸石上生物油的加氢酯化

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摘要

The primary aim of this research is to study the influence of various experimental parameters on the reaction in order to establish the optimum conditions for which the highest conversion level of zeolite-catalysed oil hydroesterification (two-step reaction: oil hydrolysis and fatty acid esterification) can be achieved. The experimental results indicate that optimising the reaction temperature and stirring rate (providing adequate mass transfer rate and preventing the diffusion limitations) are the main factors to reach into the optimal catalytic performance. An inadequate concentration of water and alcohol can lead to incomplete conversion of the oil during the hydrolysis and fatty acid esterification steps. Exceeding stoichiometric values during hydrolysis (excess H~(2)O) or esterification (excess CH~(3)OH) does not enhance the conversion level of the oil and can act adversely on the extent of hydroesterification. In excess of 95% of the original zeolite activity was recovered via calcination in air during studies of catalyst deactivation.
机译：这项研究的主要目的是研究各种实验参数对反应的影响，以建立最佳条件，以达到最高的沸石催化油加氢酯化转化率（两步反应：油水解和脂肪酸酯化）可以实现。实验结果表明，优化反应温度和搅拌速率（提供足够的传质速率并防止扩散限制）是达到最佳催化性能的主要因素。水和醇的浓度不足会导致在水解和脂肪酸酯化步骤中油的不完全转化。水解（过量的H〜（2）O）或酯化反应（过量的CH〜（3）OH）过程中超过化学计量值不会提高油的转化率，并且会对加氢酯化的程度产生不利影响。在研究催化剂失活过程中，通过空气中的煅烧回收了超过95％的原始沸石活性。

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  • 来源
    《Clean technologies and environmental policy》 |2018年第4期|727-738|共12页
  • 作者

    Omid Mowla; Eric Kennedy; Michael Stockenhuber;

  • 作者单位

    Priority Research Centre for Energy, School of Engineering, Faculty of Engineering and Built Environment, The University of Newcastle;

    Priority Research Centre for Energy, School of Engineering, Faculty of Engineering and Built Environment, The University of Newcastle;

    Priority Research Centre for Energy, School of Engineering, Faculty of Engineering and Built Environment, The University of Newcastle;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Oil hydroesterification; Zeolite; Biodiesel; Conversion level;

    机译：石油加氢酯化;沸石;生物柴油;转化率;

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