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首页> 外文期刊>Energy & fuels >Experimental and Modeling Study of Organic Chloride Compounds Removal from Naphtha Fraction of Contaminated Crude Oil Using Sintered y-AI_2O_3 Nanoparticles: Equilibrium, Kinetic, and Thermodynamic Analysis
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Experimental and Modeling Study of Organic Chloride Compounds Removal from Naphtha Fraction of Contaminated Crude Oil Using Sintered y-AI_2O_3 Nanoparticles: Equilibrium, Kinetic, and Thermodynamic Analysis

机译：利用烧结的y-AI_2O_3纳米颗粒从原油的石脑油馏分中去除有机氯化物的实验和建模研究：平衡，动力学和热力学分析

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摘要

Because of destructive effects of organic chlorides, elimination of these compounds from contaminated crude oil and its distillates is very crucial for oil refiners. Despite the importance of the subject, limited researches in this field are performed and most of the proposed removal methods are operationally difficult and costly. In the present study, an adsorption process as an efficient technology is proposed and employed to eliminate the organic chlorides compounds from the naphtha fraction of contaminated crude oil. The gamma-Al2O3 nanoparticles as an adsorbent are prepared and characterized by XRD, SEM-EDS, and BET analyses. Adsorption experiments are carried out at different operating temperatures and also various initial organic chloride concentrations. The experimental results indicated that the adsorption efficiency reaches to more than 96%, when the initial concentration of the organic chloride in the sample is 8.5 mg/L. The adsorption equilibrium analysis revealed that the Freundlich isotherm model provided the best fit and prediction of experimental data. It was also found that, for all of the verified samples, the adsorption kinetics followed the pseudo-second-order equation well. According to experimental investigations reported in the present work, the sintered gamma-Al2O3 nanoparticles would be an effective adsorbent for elimination of organic chloride as a hazardous material from the naphtha distillate of crude oil.
机译：由于有机氯化物的破坏作用，从受污染的原油及其馏出物中消除这些化合物对于炼油厂非常重要。尽管该主题很重要，但在该领域的研究仍很少，而且大多数建议的去除方法在操作上都困难且成本高昂。在本研究中，提出了一种吸附工艺作为一种有效技术，并用于从受污染原油的石脑油馏分中去除有机氯化物。制备了作为吸附剂的γ-Al2O3纳米颗粒，并通过XRD，SEM-EDS和BET分析对其进行了表征。吸附实验是在不同的操作温度以及各种初始有机氯化物浓度下进行的。实验结果表明，样品中有机氯的初始浓度为8.5 mg / L时，吸附效率达到96％以上。吸附平衡分析表明，Freundlich等温线模型提供了最佳拟合和实验数据的预测。还发现，对于所有验证的样品，吸附动力学都很好地遵循了伪二级方程。根据目前工作中报告的实验研究，烧结的γ-Al2O3纳米颗粒将是从原油石脑油馏出物中消除作为有害物质的有机氯化物的有效吸附剂。

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  • 来源
    《Energy & fuels》 |2018年第3期|4025-4039|共15页
  • 作者

    Arjang Samad; Motahari Kazem; Saidi Majid;

  • 作者单位

    Arak Univ, Dept Chem Engn, Arak 3815688349, Iran;

    Arak Univ, Dept Chem Engn, Arak 3815688349, Iran;

    Univ Tehran, Coll Sci, Sch Chem, POB 14155-6455, Tehran, Iran;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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