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相关概念视频

Distillation: Vapor–Liquid Equilibria01:01

Distillation: Vapor–Liquid Equilibria

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Distillation is a separation technique that takes advantage of the boiling point properties of disparate elements in a mixture. To perform distillation, we begin by heating a miscible mixture of two liquids with a significant difference in boiling points (at least 20°C). As the solution heats up and reaches the bubble point of the more volatile component, some molecules of the more volatile component transition into the gas phase and travel upward into the condenser, which is a glass tube...
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Intermolecular Forces and Physical Properties02:56

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Entropy and Solvation02:05

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The process of surrounding a solute with solvent is called solvation. It involves evenly distributing the solute within the solvent. The rule of thumb for determining a solvent for a given compound is that like dissolves like. A good solvent has molecular characteristics similar to those of the compound to be dissolved. For example, polar solutions dissolve polar solutes, and apolar solvents dissolve apolar solutes. A polar solvent is a solvent that has a high dielectric constant (ϵ...
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Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility02:34

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Intermolecular forces are attractive forces that exist between molecules. They dictate several bulk properties, such as melting points, boiling points, and solubilities (miscibilities) of substances. Molar mass, molecular shape, and polarity affect the strength of different intermolecular forces, which influence the magnitude of physical properties across a family of molecules.
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...
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相关实验视频

Updated: Jan 12, 2026

Measurement of the Rheology of Crude Oil in Equilibrium with CO2 at Reservoir Conditions
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在乳化,粘度,相逆特性和原油水混合系统预测方法方面的进展.

Haijun Luo1, Yuzhang Jia1, Yongrui Lu1

  • 1School of Petroleum Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China.

ACS omega
|November 3, 2025
PubMed
概括

这项研究回顾了原油-水乳液,详细说明了内部因素 (如青) 和外部因素 (如温度) 如何影响粘度和相位逆转. 了解这些特性对于优化油田生产和管道运输至关重要.

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科学领域:

  • 石油工程是石油工程中的一个.
  • 合体和表面科学科学

背景情况:

  • 由于剪切力,管道中的油水混合物会形成乳液.
  • 这些乳液增加混合物粘度,影响流动特性和压力下降.
  • 乳液特性取决于内部因素 (原油特性,表面活性剂) 和外部因素 (剪切,含水量,温度).

研究的目的:

  • 对原油-水系统的乳化,粘度,相位逆转和预测方法的研究进展进行审查.
  • 为了突显相位逆转点对油田运营的意义.
  • 确定未来的研究方向,以提高理解和应用.

主要方法:

  • 关于原油与水混合系统的研究文献综述.
  • 影响乳液稳定性的内部因素 (原油物理性质,天然表面活性剂如青) 的分析.
  • 检查影响乳化和粘度的外部因素 (剪切力,水含量,温度).

主要成果:

  • 内部因素影响表面张力,薄膜强度,颗粒分布和电双层状态,影响乳液稳定性.
  • 外部因素可以动态调节乳化程度和粘度.
  • 阶段逆转点是油田生产和运输的关键参数.

结论:

  • 未来的研究应该调查水相特性对乳化作用的影响.
  • 对于稳定和不稳定的系统,需要一个统一的粘度预测模型.
  • 大数据技术可以提高研究成果对油田开发的普遍性和适用性.