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Vapor-liquid equilibrium of hydrogen-hydrocarbon systems and its effects on hydroprocessing reactors

机译：氢-烃系统的气液平衡及其对加氢反应器的影响

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摘要

An exhaustive review of the literature about the vapor-liquid equilibrium (VLE) of hydrogen-hydrocarbon (H_2-HC) systems is reported in this work, including studies where reactor modeling is considered or not. Hydrocarbons can be pure compounds or petroleum fractions. Reported petroleum fractions are from gasoline to vacuum residue. The analyzed information was: type of device or cell used to obtain experimental data, model used to predict the VLE behavior, and different options to adjust the EOS by interaction parameters of H_2-HC. Comparisons of the ranges of operating conditions (pressure and temperature) of VLE studies with or without reaction were done. The variations of the distribution coefficients of H_2 on HC were compared with respect to the pressure. Several of the studies show a strategy used to characterize the oil fraction. It is recognized the importance to consider VLE in the reactor modeling, because it affects the calculation of conversion, depending on the properties of the feedstock and operating conditions. For future work it is recommended to obtain VLE data for H_2-heavy petroleum fractions, to development appropriate experimental methods to determine the physical properties of pseudocomponents from heavy petroleum fraction, or mathematical techniques to overcome this deficiency. In addition, the use of analysis of phases' stability in the VLE is suggested to be sure about the number of phases present in the system to obtain more reliable H_2-pseudocomponents interaction parameters.
机译：这项工作报道了有关氢-烃（H_2-HC）系统的气液平衡（VLE）的文献的详尽综述，包括考虑或不考虑反应器建模的研究。烃可以是纯化合物或石油馏分。报告的石油馏分是从汽油到减压渣油。分析的信息是：用于获得实验数据的设备或细胞的类型，用于预测VLE行为的模型以及通过H_2-HC的相互作用参数调节EOS的不同选项。比较有无反应的VLE研究的工作条件（压力和温度）范围。比较了H_2在HC上的分布系数相对于压力的变化。一些研究显示了用于表征油馏分的策略。人们认识到在反应器模型中考虑VLE的重要性，因为它会影响进料的计算，具体取决于原料的性质和操作条件。为了将来的工作，建议获取H_2重质石油馏分的VLE数据，开发适当的实验方法以确定重质石油馏分中假组分的物理性质，或使用数学技术来克服这一缺陷。另外，建议在VLE中使用相稳定性分析来确定系统中存在的相数，以获得更可靠的H_2-假组分相互作用参数。

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  • 来源
    《Fuel》 |2014年第15期|156-175|共20页
  • 作者

    Luz M. Chavez; Fernando Alonso; Jorge Ancheyta;

  • 作者单位

    Instituto Mexicano del Petroleo, Eje Central Lazaro Cardenas Norte 152, Col. San Bartolo Atepehuacan, C.P. 07730 Mexico, D.F., Mexico;

    Instituto Mexicano del Petroleo, Eje Central Lazaro Cardenas Norte 152, Col. San Bartolo Atepehuacan, C.P. 07730 Mexico, D.F., Mexico;

    Instituto Mexicano del Petroleo, Eje Central Lazaro Cardenas Norte 152, Col. San Bartolo Atepehuacan, C.P. 07730 Mexico, D.F., Mexico;

  • 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

    Vapor-liquid equilibrium; Hydroprocessing; H_2-pseudocomponents interaction;

    机译：汽液平衡;加氢处理;H_2-假组分相互作用;

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