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首页> 外文期刊>Fuel >Biodiesel production from palm oil and methanol via zeolite derived catalyst as a phase boundary catalyst: An optimization study by using response surface methodology
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Biodiesel production from palm oil and methanol via zeolite derived catalyst as a phase boundary catalyst: An optimization study by using response surface methodology

机译：通过沸石衍生的催化剂作为相界催化剂从棕榈油和甲醇中生产生物柴油：使用响应面方法的优化研究

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摘要

A zeolite derived catalyst was prepared by lithium modified zeolites, which can be used as a phase boundary catalyst for the reaction of soybean oil or palm oil with short chain alcohols such as methanol or ethanol. The zeolite derived catalyst was characterized by XRD, TG, SEM, CO2-TPD, DLS and contact angles (CA). The results showed that Li3AlSiO5 , the main active components of the zeolite derived catalyst, had excellent catalytic activity. The surface of the zeolite derived catalyst possess the complex pore structure, and zeolite derived catalyst belonged to monodisperse system in methanol suspension. Small molecules such as methanol could diffuse easily, and fully contacted the active sites on the surface of zeolite derived catalyst, which would promote the formation of CH3O-. Interestingly, the optical contact angle indicated that the zeolite derived catalyst had a strong hydrophilicity, so that the zeolite derived catalyst was located between the two-phase boundary of the alcohol and oil. It would offer large interfacial area and overcome the mass transfer obstacles between the multiphase, effectively enhanced the reaction rate. Furthermore, the stability test confirmed that the zeolite derived catalyst had good reusability and universality. The Response Surface Methodology (RSM) was used to optimize the process parameters of palm oil and methanol in the synthesis of biodiesel, which has better guiding significance for the industrial production of biodiesel in the future.
机译：用锂改性的沸石制备了沸石衍生的催化剂，该催化剂可用作大豆油或棕榈油与短链醇如甲醇或乙醇反应的相边界催化剂。通过XRD，TG，SEM，CO2-TPD，DLS和接触角（CA）表征沸石衍生的催化剂。结果表明，沸石衍生催化剂的主要活性组分Li3AlSiO5具有优异的催化活性。沸石衍生催化剂的表面具有复杂的孔结构，并且沸石衍生催化剂属于甲醇悬浮液中的单分散体系。诸如甲醇之类的小分子很容易扩散，并与沸石衍生的催化剂表面上的活性位点完全接触，这将促进CH3O-的形成。有趣的是，光学接触角表明该沸石衍生的催化剂具有很强的亲水性，因此该沸石衍生的催化剂位于醇和油的两相边界之间。它将提供大的界面面积并克服多相之间的传质障碍，有效地提高了反应速率。此外，稳定性测试证实了该沸石衍生的催化剂具有良好的可重复使用性和通用性。响应面法（RSM）用于优化生物柴油合成中棕榈油和甲醇的工艺参数，对今后生物柴油的工业化生产具有较好的指导意义。

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  • 来源
    《Fuel》 |2020年第jul15期|117680.1-117680.10|共10页
  • 作者

  • 作者单位

    Jiangnan Univ Sch Chem & Mat Engn Key Lab Synthet & Biol Colloids Minist Educ Wuxi 214122 Jiangsu 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

    Biodiesel; Transesterification; Phase interface catalysis; Response surface methodology; Zeolite;

    机译：生物柴油酯交换相界面催化;响应面方法;沸石;

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