Vapor–liquid equilibria (VLE), density, and viscosity of the ternary mixtures of ethane, water, and bitumen at T = 190–210 °C and P = 2.5 MPa—Measurements and CPA-EoS modeling

IF 2.8 3区工程技术 Q3 CHEMISTRY, PHYSICAL

Fluid Phase Equilibria Pub Date : 2024-11-14 DOI:10.1016/j.fluid.2024.114285

Shakerullah Turkman, Devjyoti Nath, Mahmood Abdi, Hassan Hassanzadeh

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Abstract

In this paper, we study vapor-liquid equilibria (VLE) of a ternary system consisting of ethane, water and Mackay River bitumen. The experimental measurements were compared with the predictions of the Cubic Plus Association (CPA) Equation of State (EoS) model at temperatures ranging from 190 to 210 °C and at 2.5 MPa pressure. The feed mole fractions of ethane and water are varied while maintaining a constant bitumen mole fraction to study the VLE region and the associated thermophysical properties, such as the density and viscosity, of the liquid phase. The ternary phase diagrams are constructed at three different temperatures (190, 200, and 210 °C) and pressure at 2.5 MPa. Liquid (L), liquid–liquid (LL), vapor–liquid (VL), and vapor–liquid–liquid (VLL) phase boundaries are determined using phase stability analysis and flash calculations. The experimentally determined phase molar compositions are reported for ethane, water, and bitumen and compared with the model predictions. The AARDs for predicting the liquid phase composition for bitumen, water, and ethane are 1.71 %, 9.34 %, and 3.16 %, respectively. For the vapor phase composition, the AARDs for the water and ethane are 5.91 % and 4.75 %, respectively.

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乙烷、水和沥青三元混合物在 T = 190-210 °C 和 P = 2.5 MPa 条件下的气液平衡 (VLE)、密度和粘度--测量和 CPA-EoS 建模

本文研究了由乙烷、水和麦凯河沥青组成的三元体系的汽液平衡（VLE）。在温度为 190 至 210 °C、压力为 2.5 兆帕的条件下，将实验测量结果与立方协会（CPA）状态方程（EoS）模型的预测结果进行了比较。在保持沥青摩尔分数不变的情况下，改变乙烷和水的进料摩尔分数，以研究 VLE 区域和相关的热物理性质，如液相的密度和粘度。在三种不同温度（190、200 和 210 °C）和 2.5 兆帕压力下构建了三元相图。利用相稳定性分析和闪蒸计算确定了液相 (L)、液-液 (LL)、汽-液 (VL) 和汽-液-液 (VLL) 相边界。报告了实验确定的乙烷、水和沥青的相摩尔组成，并与模型预测进行了比较。预测沥青、水和乙烷液相成分的 AARD 分别为 1.71 %、9.34 % 和 3.16 %。在气相成分方面，水和乙烷的平均可得系数分别为 5.91 % 和 4.75 %。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Fluid Phase Equilibria 工程技术-工程：化工

CiteScore

5.30

自引率

15.40%

发文量

223

审稿时长

53 days

期刊介绍： Fluid Phase Equilibria publishes high-quality papers dealing with experimental, theoretical, and applied research related to equilibrium and transport properties of fluids, solids, and interfaces. Subjects of interest include physical/phase and chemical equilibria; equilibrium and nonequilibrium thermophysical properties; fundamental thermodynamic relations; and stability. The systems central to the journal include pure substances and mixtures of organic and inorganic materials, including polymers, biochemicals, and surfactants with sufficient characterization of composition and purity for the results to be reproduced. Alloys are of interest only when thermodynamic studies are included, purely material studies will not be considered. In all cases, authors are expected to provide physical or chemical interpretations of the results. Experimental research can include measurements under all conditions of temperature, pressure, and composition, including critical and supercritical. Measurements are to be associated with systems and conditions of fundamental or applied interest, and may not be only a collection of routine data, such as physical property or solubility measurements at limited pressures and temperatures close to ambient, or surfactant studies focussed strictly on micellisation or micelle structure. Papers reporting common data must be accompanied by new physical insights and/or contemporary or new theory or techniques.