Modeling of oil evaporation in aqueous environment

Yang, Wei; Wang, Hsiang

doi:10.1016/0043-1354(77)90076-8

Cited by 42 publications

(16 citation statements)

References 2 publications

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“…where C t is the concentration at time t and C 0 is the initial concentration [11,38]. The resulting decay curve and regression line for the normal alkanes are shown in Fig.…”

Section: Determination Of Kinetic Rate Constantsmentioning

confidence: 99%

Gas chromatographic retention index as a basis for predicting evaporation rates of complex mixtures

Mcllroy

Jones

McGuffin

2014

Analytica Chimica Acta

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“…where C t is the concentration at time t and C 0 is the initial concentration [11,38]. The resulting decay curve and regression line for the normal alkanes are shown in Fig.…”

Section: Determination Of Kinetic Rate Constantsmentioning

confidence: 99%

Gas chromatographic retention index as a basis for predicting evaporation rates of complex mixtures

Mcllroy

Jones

McGuffin

2014

Analytica Chimica Acta

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“…To assess the evaporation rate, we applied the pseudo-component approach that has been described in previous studies [8]. The pseudo-component approach characterizes the mass of the individual hydrocarbon components evaporated, grouped by vapor pressure fraction.…”

Section: Methodsmentioning

confidence: 99%

Modeling Human Exposure Levels to Airborne Volatile Organic Compounds by the Hebei Spirit Oil Spill

Kim

Kwak

et al. 2012

Environ Health Toxicol

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ObjectivesThe goal was to model and quantify the atmospheric concentrations of volatile organic compounds (VOCs) as the result of the Hebei Spirit oil spill, and to predict whether the exposure levels were abnormally high or not.MethodsWe developed a model for calculating the airborne concentration of VOCs that are produced in an oil spill accident. The model was applied to a practical situation, namely the Hebei Spirit oil spill. The accuracy of the model was verified by comparing the results with previous observation data. The concentrations were compared with the currently used air quality standards.ResultsEvaporation was found to be 10- to 1,000-fold higher than the emissions produced from a surrounding industrial complex. The modeled concentrations for benzene failed to meet current labor environmental standards, and the concentration of benzene, toluene, ortho- meta- para-xylene were higher than the values specified by air quality standards and guideline values on the ocean. The concentrations of total VOCs were much higher than indoor environmental criteria for the entire Taean area for a few days.ConclusionsThe extent of airborne exposure was clearly not the same as that for normal conditions.

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“…A comparison of the maximum evaporation rates for a few oils, gasoline, and water, measured under the wind-free condition showed that some oil rates exceeded that for water by as much as an order of magnitude (E water = 0.034, light crude oil ASMB = 0.075, and Gasoline = 0.34 g min −1 (Fingas, 2012) being in agreement with the E data obtained in this study. Further experiments performed by Yang and Wang (1997) showed that a film could be formed on evaporating oils and this compact, solid-like film significantly retarded evaporation. The evaporation rate turned out to be reduced fivefold after the surface film formation.…”

Section: Volatile Hydrocarbon Propertiesmentioning

confidence: 99%

Influence of Surfactant Concentration and Temperature Gradients on Spreading of Crude-Oil at Sea*

Boniewicz-Szmyt

Pogorzelski

2018

Front. Mar. Sci.

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Spreading kinetics measurements were carried out on crude oils surfactant-containing sea water of well-controlled thermo elastic surface properties in laboratory conditions. It was found that oil lens expansion rates, predicted from the classical surface tension-driven spreading theory, were higher by a factor of 6-9 than those experimentally derived for Baltic collected sea water. Previously, in order to explain such a discrepancy, the initial spreading coefficient S 0-entering the lens radius vs. time dependence was replaced with the temporal one S t dependent on the water phase surface viscoelasticity of Boniewicz-Szmyt and Pogorzelski (2008). Now, natural surfactant concentration and temperature gradients perpendicular to the surface were shown to drive a particular cell-like flow at the surface microlayer, as a result of the classic and thermal Marangoni phenomenon. The balance of interfacial forces was taken as:-µ∂U s /∂z = ∂γ /∂T•∂T/∂x+∂γ /∂c•∂c/∂x where: µ is the dynamic viscosity, U s-the velocity, z and x axes oriented perpendicularly and horizontally to the main flow direction, T, γ , c are the temperature, surface tension, and concentration of surfactants. Computations performed on original seawater (Baltic Sea) systems, shown that the natural surfactant concentration term ∂γ /∂c is several times lower than the thermal ∂γ /∂T one (Boniewicz-Szmyt and Pogorzelski, 2016). Such a surface tension gradients induce the Benard-Marangoni instability, for high enough the so-called Marangoni numbers that could significantly slow down the spreading process. On the basis of thermo-physical model liquids properties, the critical temperature difference T c required to initiate the process under an evaporative cooling condition was evaluated. In this just concept study, the preliminary results suggest that the vertical processes are involved, and that a realistic model of oil dispersion should include vertical velocity shears appearing in the final surface tension-driven stage of oil pollution development.

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Modeling of oil evaporation in aqueous environment

Cited by 42 publications

References 2 publications

Gas chromatographic retention index as a basis for predicting evaporation rates of complex mixtures

Gas chromatographic retention index as a basis for predicting evaporation rates of complex mixtures

Modeling Human Exposure Levels to Airborne Volatile Organic Compounds by the Hebei Spirit Oil Spill

Influence of Surfactant Concentration and Temperature Gradients on Spreading of Crude-Oil at Sea*

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