Predicting the phase equilibria of synthetic petroleum fluids with the PPR78 approach

Jaubert, Jean‐Noël; Privat, Romain; Mutelet, Fabrice

doi:10.1002/aic.12232

Cited by 168 publications

(114 citation statements)

References 65 publications

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“…The capability of the PPR78 model is now illustrated in such mixtures. All the references of the experimental datapoints can be found in [12]. [12]).…”

Section: Predicting the Phase Behavior Of Co 2 -Containing Multicompomentioning

confidence: 99%

“…In the current state, the PPR78 model can cover a large spectrum of petroleum fluids, from natural gases to crude oils [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. 20 groups exist and make it possible to accurately predict the phase behavior of mixtures containing alkanes, alkenes, aromatic compounds, cycloalkanes, permanent gases (CO 2 …”

Section: The Equation Of State (Eos)mentioning

confidence: 99%

See 1 more Smart Citation

Predicting the Phase Equilibria of Carbon Dioxide Containing Mixtures Involved in CCS Processes Using the PPR78 Model

Privat¹,

Jaubert²

2014

CO2 Sequestration and Valorization

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“…The capability of the PPR78 model is now illustrated in such mixtures. All the references of the experimental datapoints can be found in [12]. [12]).…”

Section: Predicting the Phase Behavior Of Co 2 -Containing Multicompomentioning

confidence: 99%

Section: The Equation Of State (Eos)mentioning

confidence: 99%

Predicting the Phase Equilibria of Carbon Dioxide Containing Mixtures Involved in CCS Processes Using the PPR78 Model

Privat¹,

Jaubert²

2014

CO2 Sequestration and Valorization

Self Cite

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“…The group-contribution (GC) approach is a relatively recent concept [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] which originally aimed at predicting the physical properties of pure molecules starting from their chemical structures. The application of the GC concept to mixtures is actually an extension of the GC concept for single molecules [3,18].…”

Section: General Aspectsmentioning

confidence: 99%

The thermodynamics of alcohols-hydrocarbons mixtures

Privat

Jaubert

Molière³

2013

MATEC Web of Conferences

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Alcohols/hydrocarbons blends represent important products in the industry and remarkable systems from the thermodynamic standpoint, especially in presence of traces of water. In automotive applications, ethanol is incorporated in increasing proportions into car fuel formulations for environmental and economic reasons.From a thermodynamic viewpoint, the strongly polar nature of ethanol versus the rather apolar character of hydrocarbons makes the study of such blends particularly interesting in terms of vapor pressure and miscibility behavior.A long term collaboration between GE EnergyEurope (Belfort, France) and the Thermodynamics Team of the LRGP laboratory (Nancy, France) has been conducted to improve the knowledge of these systems, using the UNIFAC thermodynamic theory. First, blends of anhydrous ethanol and naphtha class hydrocarbons have been studied in terms of volatility: a strong liquid/vapor non-ideality effect has been put in evidence and numerically characterized. In a further step, blends of hydrated ethanol and hydrocarbons featuring diverse compositions have been the matter of a thermodynamic modeling that confirmed the paramount role played by the moisture content of ethanol on the miscibility, using the Maximum Miscibility Temperature ("TMM") concept; this study also pointed out the non-negligible influence of the PONA data and sulfur species of the hydrocarbon cut. Later on, other alcohols namely methanol, isopropanol and n-butanol, that may play an important role in future "green fuel" formulations, were included in this study that showed an interesting chain length effect.Recently, the team has started a study of the effect of biodiesel additions on the TMM of hydrated alcoholhydrocarbon mixtures.This paper summarizes the methodology and the results of the multi-step, collaborative modeling study developed in the field of ethanol/hydrocarbon thermodynamics.

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“…Normally, the NGL in the tank is a saturated liquid [6]. Once the pressure drops down to the saturation vapor pressure of the NGL during the leakage process, the NGL would evaporate, causing the coexistence of liquid and vapor phases in the tank and the leak hole [7,8]. …”

Section: Introductionmentioning

confidence: 99%

Dynamic Modeling of the Two-Phase Leakage Process of Natural Gas Liquid Storage Tanks

et al. 2017

Energies

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Abstract:The leakage process simulation of a Natural Gas Liquid (NGL) storage tank requires the simultaneous solution of the NGL's pressure, temperature and phase state in the tank and across the leak hole. The methods available in the literature rarely consider the liquid/vapor phase transition of the NGL during such a process. This paper provides a comprehensive pressure-temperature-phase state method to solve this problem. With this method, the phase state of the NGL is predicted by a thermodynamic model based on the volume translated Peng-Robinson equation of state (VTPR EOS). The tank's pressure and temperature are simulated according to the pressure-volume-temperature and isenthalpic expansion principles of the NGL. The pressure, temperature, leakage mass flow rate across the leak hole are calculated from an improved Homogeneous Non-Equilibrium Diener-Schmidt (HNE-DS) model and the isentropic expansion principle. In particular, the improved HNE-DS model removes the ideal gas assumption used in the original HNE-DS model by using a new compressibility factor developed from the VTPR EOS to replace the original one derived from the Clausius-Clayperon equation. Finally, a robust procedure of simultaneously solving the tank model and the leak hole model is proposed and the method is validated by experimental data. A variety of leakage cases demonstrates that this method is effective in simulating the dynamic leakage process of NGL tanks under critical and subcritical releasing conditions associated with vapor/liquid phase change.

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Predicting the phase equilibria of synthetic petroleum fluids with the PPR78 approach

Cited by 168 publications

References 65 publications

Predicting the Phase Equilibria of Carbon Dioxide Containing Mixtures Involved in CCS Processes Using the PPR78 Model

Predicting the Phase Equilibria of Carbon Dioxide Containing Mixtures Involved in CCS Processes Using the PPR78 Model

The thermodynamics of alcohols-hydrocarbons mixtures

Dynamic Modeling of the Two-Phase Leakage Process of Natural Gas Liquid Storage Tanks

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