Density, viscosity, surface tension, and excess properties of DSO and gas condensate mixtures

IF 0.125

Applied Petrochemical Research Pub Date : 2017-10-23 DOI:10.1007/s13203-017-0183-4

Ahmad Khorami, Seyed Ali Jafari, Mohamad Mohamadi-Baghmolaei, Reza Azin, Shahriar Osfouri

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引用次数: 7

Abstract

Disulfide oil (DSO) mostly burned or stored is known as a low-grade byproduct in gas refining industries. This material is highly perilous to environment. A common way to reduce the environmental impact of DSO is blending in a specific ratio with gas condensate stream in gas refinery. This would improve DSO quality and consequently strengthen its unique application. In this work, density, viscosity and surface tension of DSO and gas condensate mixtures were measured and modeled. Viscosity and density of DSO, gas condensate, and their mixtures were measured in temperature range of 283.15–318.15?K. In addition, surface tension was measured at 298.15?K at different volumetric fractions of DSO–gas condensate mixture. Excess molar volume (V ^E), viscosity deviation (?μ), deviation of excess Gibbs free energy (?G ^E), and excess surface tension (σ ^E) were determined based on measured properties. Results showed a positive and negative trend for excess molar volume and excess surface tension, respectively. While fluctuation was observed in viscosity deviation and deviation of excess Gibbs free energy and results showed positive and negative values in different mole fraction. In addition, Redlich–Kister equation is proposed to predict excess properties of DSO and gas condensate mixtures.

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密度，粘度，表面张力，以及DSO和凝析气体混合物的过剩性能

二硫化油(DSO)是天然气炼制工业中的一种低品位副产品，主要用于燃烧或储存。这种材料对环境有很大的危害。减少DSO对环境影响的一种常用方法是在炼油厂与凝析液按一定比例混合。这将提高DSO的质量，从而加强其独特的应用。在这项工作中，测量了DSO和凝析气混合物的密度、粘度和表面张力，并建立了模型。在283.15 ~ 318.15 K的温度范围内测量了DSO、凝析油及其混合物的粘度和密度。此外，测得表面张力为298.15?不同体积分数dso -凝析气混合物的K值。过量摩尔体积(V E)，粘度偏差(?μ)，过量吉布斯自由能偏差(?G E)和多余表面张力(σ E)根据测量的性能确定。结果表明，过量摩尔体积和过量表面张力分别呈正、负趋势。黏度偏差和过量吉布斯自由能偏差均有波动，且在不同摩尔分数下均为正负。此外，提出了Redlich-Kister方程来预测DSO和凝析气混合物的过剩性质。

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来源期刊

Applied Petrochemical Research ENGINEERING, CHEMICAL-

自引率

0.00%

发文量

审稿时长

13 weeks

期刊介绍： Applied Petrochemical Research is a quarterly Open Access journal supported by King Abdulaziz City for Science and Technology and all the manuscripts are single-blind peer-reviewed for scientific quality and acceptance. The article-processing charge (APC) for all authors is covered by KACST. Publication of original applied research on all aspects of the petrochemical industry focusing on new and smart technologies that allow the production of value-added end products in a cost-effective way. Topics of interest include: • Review of Petrochemical Processes • Reaction Engineering • Design • Catalysis • Pilot Plant and Production Studies • Synthesis As Applied to any of the following aspects of Petrochemical Research: -Feedstock Petrochemicals: Ethylene Production, Propylene Production, Butylene Production, Aromatics Production (Benzene, Toluene, Xylene etc...), Oxygenate Production (Methanol, Ethanol, Propanol etc…), Paraffins and Waxes. -Petrochemical Refining Processes: Cracking (Steam Cracking, Hydrocracking, Fluid Catalytic Cracking), Reforming and Aromatisation, Isomerisation Processes, Dimerization and Polymerization, Aromatic Alkylation, Oxidation Processes, Hydrogenation and Dehydrogenation. -Products: Polymers and Plastics, Lubricants, Speciality and Fine Chemicals (Adhesives, Fragrances, Flavours etc...), Fibres, Pharmaceuticals.