Vapor Pressure and Vaporization of Petroleum Fractions

Katz, Donald L.; Brown, Geo. Granger.

doi:10.1021/ie50288a018

Cited by 43 publications

(20 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The idea of describing a complex mixture by a continuous function instead of discrete components first appeared about 60 years ago [30,31]. Since properties such molecular weight and volatility of components are significantly different, the evaporation characteristics cannot be accurately described by one or several substitute components.…”

Section: Continuous Thermodynamics Model Of Complex Multicomponent MImentioning

confidence: 99%

Modeling of Droplet Evaporation and Combustion

2016

Internal Combustion Processes of Liquid Rocket Engines

View full text Add to dashboard Cite

As liquid propellants are atomized into droplets in a liquid rocket engine combustor, the evaporation and combustion of droplets plays an important role in the engine performance. In a practical rocket engine, the combustion of liquid propellants is carried out in the form of a spray or droplet cluster. However, it is very difficult to study the combustion process of the whole liquid spray theoretically as well as experimentally. Since the combustion of a single droplet is the fundamental of the spray combustion, some approximate estimates for the liquid spray combustion can be obtained from droplet combustion. The combustion process of a fuel droplet consists of several stages: fuel evaporation from the droplet surface, mixing with the surrounding medium, and reaction with the oxide gas in the medium.This chapter elaborates on the evaporation of a single droplet under various conditions: in a static or convection environment at atmospheric pressure, at a high pressure, and in an oscillation environment. The evaporation of a single droplet of a multicomponent fuel will also be described. Theory for Quasi-Steady Evaporation and Combustion of a Single Droplet at Atmospheric PressureAs a classic case of droplet evaporation, the evaporation of an isolated spherical droplet in a static ambient at atmospheric pressure is widely studied. To derive an analytical solution in theoretical modeling, the droplet evaporation is commonly assumed to be a stationary process, though it is actually an unsteady process. It is also assumed that the droplets contain only one chemical component. Moreover, in most cases there is a velocity difference between the droplet Internal Combustion Processes of Liquid Rocket Engines: Modeling and Numerical Simulations, First Edition. Zhen-Guo Wang.

show abstract

Section: Continuous Thermodynamics Model Of Complex Multicomponent MImentioning

confidence: 99%

Modeling of Droplet Evaporation and Combustion

2016

Internal Combustion Processes of Liquid Rocket Engines

View full text Add to dashboard Cite

show abstract

“…Historically, the concept of pseudocomponents was developed under the name integral method quite some time ago (Katz and Brown, 1933). Hariu and Sage (1969) were the first to use a computer to use the pseudocomponent method to calculate a flash.…”

Section: Characterizationmentioning

confidence: 99%

“…It is possible to use this characterization to derive certain sets of pseudocomponents, which reflect the measured behavior. The concept of using these pseudocomponents to describe the mixture was introduced early by Katz and Brown in 1933. After introduction of correlation based properties, pseudocomponents can be used like actual chemical compounds.…”

Section: Introductionmentioning

confidence: 99%

New approach to refinery process simulation with adaptive composition representation

Briesen

Marquardt

2004

AIChE Journal

View full text Add to dashboard Cite

“…After splitting the heavy plus-fraction through a distribution, it is necessary to reduce the number of components and SCN fractions, grouping them in pseudocomponents. 24 This step is relevant for applications that require huge computational effort 25 such as reservoir simulations. To do so, the number of components and the criteria for grouping them is required as well as how to calculate the pseudocomponent properties.…”

Section: Introductionmentioning

confidence: 99%

“…After splitting the heavy plus-fraction through a distribution, it is necessary to reduce the number of components and SCN fractions, grouping them in pseudocomponents . This step is relevant for applications that require huge computational effort such as reservoir simulations.…”

Section: Introductionmentioning

confidence: 99%

Calculation of Bubble Pressure for Crude Oils: The Effect of q-Weibull Distribution for Splitting the Heavy Fraction

et al. 2019

View full text Add to dashboard Cite

Thermodynamic calculations involving crude oils require a proper characterization of the heavy-fraction in order to describe the phase behavior. Bubble pressure is a key property, and its calculation depends on splitting the heavyfraction of the crude oil through a distribution function to obtain properties such as molecular weight and specific gravity. Small changes in these properties can significantly affect phase behavior calculations. The exponential and gamma distributions are the most used for splitting but they fail in characterizing many oils. Alternatively, the q-Weibull distribution is proposed to the splitting step instead of the exponential and gamma distributions in order to calculate the molecular weight and specific gravity. These three distributions are critically tested and compared for 13 oils with extended composition selected from the literature, stressing the effect of the characterization methods on the calculation of bubble pressure for reservoir fluids.

show abstract

Vapor Pressure and Vaporization of Petroleum Fractions

Abstract: THE vapor pressure of a liquid at a specified temperature is the pressure under which the liquid is in equilibrium with a vapor. In the case of a pure substance or single

Cited by 43 publications

References 23 publications

Modeling of Droplet Evaporation and Combustion

Modeling of Droplet Evaporation and Combustion

New approach to refinery process simulation with adaptive composition representation

Calculation of Bubble Pressure for Crude Oils: The Effect of q-Weibull Distribution for Splitting the Heavy Fraction

Contact Info

Product

Resources

About