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首页> 外文期刊>Energy Conversion & Management >Coupling membrane pervaporation with a fixed-bed reactor for enhanced esterification of oleic acid with ethanol
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Coupling membrane pervaporation with a fixed-bed reactor for enhanced esterification of oleic acid with ethanol

机译：与固定床反应器偶联膜全蒸发，以增强油酸与乙醇的酯化作用

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摘要

Process intensification through membrane pervaporation (PV) integrated with a fixed-bed reactor could be successfully applied to the esterification of oleic acid and ethanol, which is a crucial step in the bio-diesel synthesis using waste oil and grease as resource. The properties of the NaA zeolite membrane such as structure, formulation and separation were investigated by scanning electronic microscopy-energy dispersive spectrometry (SEM-EDS), X-ray diffractometry (XRD) and PV dehydration. Results showed that the NaA zeolite membrane had good separating property for removing water from the organics mixture. The operating conditions were optimized as the ethanol to oleic acid molar ratio of 15:1, feedstock flow rate of 1.0 ml/min, reaction temperature of 80.0 degrees C and catalyst bed height of 132 mm. The final conversion of oleic acid increased from 84.23% to 87.18% by PV using the NaA zeolite membrane at 24.0 h of operation. The membrane showed good PV performance after used for eight successive runs in the PV-assisted esterification. The resin exhibited a much high catalytic activity and operation stability after used for 100 h in the consecutive single pass fixed-bed esterification. (C) 2015 Elsevier Ltd. All rights reserved.
机译：通过与固定床反应器集成的膜渗透蒸发（PV）进行的过程强化可以成功地应用于油酸和乙醇的酯化反应，这是利用废油和油脂作为资源进行生物柴油合成的关键步骤。通过扫描电子显微镜-能量色散光谱法（SEM-EDS），X射线衍射法（XRD）和PV脱水研究了NaA沸石膜的性质，结构，配制和分离。结果表明，NaA沸石膜具有良好的分离性能，可从有机物混合物中除去水。优化操作条件为乙醇与油酸的摩尔比为15：1，原料流速为1.0 ml / min，反应温度为80.0℃，催化剂床层高度为132 mm。在运行24.0 h时，使用NaA沸石膜通过PV将油酸的最终转化率从84.23％提高到87.18％。连续八次用于PV辅助酯化反应后，该膜显示出良好的PV性能。在连续的单程固定床酯化反应中使用100小时后，该树脂表现出很高的催化活性和操作稳定性。 （C）2015 Elsevier Ltd.保留所有权利。

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  • 来源
    《Energy Conversion & Management》 |2015年第12期|1379-1386|共8页
  • 作者

    Han Ying; Lv Enmin; Ma Lingling; Lu Jie; Chen Kexun; Ding Jincheng;

  • 作者单位

    Shandong Univ Technol, Coll Chem Engn, Zibo 255049, Shandong, Peoples R China;

    Shandong Univ Technol, Coll Chem Engn, Zibo 255049, Shandong, Peoples R China;

    Shandong Univ Technol, Coll Chem Engn, Zibo 255049, Shandong, Peoples R China;

    Shandong Univ Technol, Dept Resources & Environm Engn, Zibo 255049, Shandong, Peoples R China;

    Shandong Univ Technol, Coll Chem Engn, Zibo 255049, Shandong, Peoples R China;

    Shandong Univ Technol, Coll Chem Engn, Zibo 255049, Shandong, Peoples R China;

  • 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

    Esterification; Pervaporation; Fixed-bed reactor; Enhanced reactor; NaA zeolite membrane;

    机译：酯化;全蒸发;固定床反应器;强化反应器;NaA沸石膜;

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