Vapour pressure measurements and prediction for heavy esters

Bureau, Nathalie; José, Jacques; Mokbel, Ilham; Hemptinne, J-C. de

doi:10.1006/jcht.2001.0859

Cited by 29 publications

(14 citation statements)

References 13 publications

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“…A res = A seg + A chain + A assoc + A multi-polar (1) where A seg and A chain respectively account for segment interactions (repulsive + attractive) and chain formation. The third term A assoc deals with associative interactions (e.g.…”

Section: Equation Of Statementioning

confidence: 99%

“…as drilling fluids in upstream petroleum industry [1], but also in food industry [2], in bio-fuel synthesis [3,4]. Optimization of industrial processes involving esters requires reliable equations of state allowing to correlate accurately the physical properties and the phase equilibrium data of the pure compounds as well as their mixtures.…”

Section: Introductionmentioning

confidence: 99%

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Predicting VLE of heavy esters and their mixtures using GC-SAFT

NguyenHuynh

Falaix

Passarello

et al. 2008

Fluid Phase Equilibria

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Section: Equation Of Statementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Predicting VLE of heavy esters and their mixtures using GC-SAFT

NguyenHuynh

Falaix

Passarello

et al. 2008

Fluid Phase Equilibria

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“…Again using the Peng-Robinson/Abdoul-Péneloux model, we compared the methane -ester -toluene mixtures and the methane -alkane -toluene mixtures behaviour (see figure 5) and the conclusions were similar. In Bureau et al [6], we compared the vapour pressure of alkanes and esters and we deduced that the important factor for vapour pressure is the molecular weight. Thus, alkanes and esters with close structures and molecular weights have close vapour pressures.…”

Section: Resultsmentioning

confidence: 99%

Interactions Between Drilling Fluid and Reservoir Fluid

Bureau

Hemptinne

Audibert

et al. 2002

SPE Annual Technical Conference and Exhibition

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TX 75083-3836, U.S.A., fax 01-972-952-9435.With this model, it is now possible to describe the phase equilibria of methane -heavy esters systems in a totally predictive way, with an accuracy of 16% (maximum 50 bar error) and to reproduce the volumetric properties with an error of 6%.The final aim of this work is the study of a real oil based mud taking into account the presence of brine in our systems. These systems will also be investigated at low temperature in order to describe the deep offshore conditions.

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“…Alternatively, the data discrimination method of Wilsak and Thodos [15,16] is here applied. As briefly presented in the SM5, the data can be considered of good quality if the d values are placed on a smooth concave curve as can be seen for both compounds in Fig.…”

Section: Pure Component Vapor Pressurementioning

confidence: 99%

Phase equilibrium data and modeling of ethylic biodiesel, with application to a non-edible vegetable oil

Fahad

Oliveira

Pignat

et al. 2017

Fuel

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a b s t r a c tContributing to extending the knowledge for the design and operation of biodiesel production processes, isobaric PTxy vapor-liquid equilibria data of ethanol + ethyl hexanoate, 1-pentanol + ethyl hexanoate and 1-pentanol + ethyl octanoate at two different pressures are reported for the first time. Consistency tests were applied to attest the quality of the collected data, for these especially complex measurements. Besides that, vapor pressures of the pure ethyl esters have also been measured. For modeling purposes, the Lyngby and Dortmund UNIFAC variants were used to predict the VLE phase diagrams. Generally, the predictions are of very good quality, being the UNIFAC-Do (Dortmund) better, as the deviations in temperature and vapor compositions are always lower to 1.0 K and 0.020, respectively. Checking for the viability for extrapolations in pressure, CPA EoS was also applied to the modeling of the experimental data with very good results. Finally, aiming at examining the model capabilities to describe multicomponent systems, VLE measurements involving two alcohols and the fatty acid ethyl ester mixture obtained from non-edible vegetable oil have been carried out showing the good performance of the predictive models.

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Vapour pressure measurements and prediction for heavy esters

Cited by 29 publications

References 13 publications

Predicting VLE of heavy esters and their mixtures using GC-SAFT

Predicting VLE of heavy esters and their mixtures using GC-SAFT

Interactions Between Drilling Fluid and Reservoir Fluid

Phase equilibrium data and modeling of ethylic biodiesel, with application to a non-edible vegetable oil

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