Flash point of organic binary mixtures containing alcohols: experiment and prediction

Hristova, Mariana; Damgaliev, D.

doi:10.2478/s11532-012-0171-6

Cited by 9 publications

(15 citation statements)

References 11 publications

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“…Some authors have reported the predicted FP for ideal solutions. ,,− According to these authors, when the ideal behavior is observed, the mixture FP always present an intermediate value between the most and least flammable compound. As observed in Figure and in Tables –, this is true to the data reported in this study.…”

Section: Results and Discussionmentioning

confidence: 99%

Flash Point of Fatty Acid Methyl Ester Binary Mixtures

et al. 2019

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The flash point (FP) of binary mixtures formed by fatty acid methyl esters (FAMEs), which are the major compounds of methyl biodiesel, is investigated in this study, and the nonideality of the liquid phase was calculated with the ideal model, UNIFAC, UNIFAC-Dortmund (UNIFAC-Do), and NIST-UNIFAC models. The different models used to calculate the activity coefficient were compared through the FP result that was estimated using Liaw’s approach. The experimental results show that the larger the carbon chain of FAME is, or the richer the solution in the heavier compound is, the higher the FP of the compound and solution is. The results also show that the ideal model is the best one between those tested in this study because the solutions studied here can be considered ideal, and the calculated FP temperature of the binary mixtures presented an average root-mean-square deviation equal to 0.67% using this model. It was observed as an abrupt decrease in the FP value of the mixture with small addictions of the light compound in the region that is rich in the heavier compound, remarkably when the difference in the length of the alkyl carbon chain of these components is large. This behavior is an important factor that must be considered in safety and transportation cases.

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Section: Results and Discussionmentioning

confidence: 99%

Flash Point of Fatty Acid Methyl Ester Binary Mixtures

et al. 2019

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“…The predictive results of applied model describe the experimental data from [2] and [3] well within the error two times lower than experimental one. Based on this evidence, therefore, it appears reasonable to suggest potential application for our model in assessment of fire and explosion hazards, and development of inherently safer designs for chemical processes containing binary mixtures of flammable solvents.…”

Section: Discussionmentioning

confidence: 66%

“…The flash point for a solution can be estimated by Liaw´s model by equation of Le Chatelier [2][3][4] and an extended Antoine equation for estimating the saturated vapor pressure [5] and a model for estimating activity coefficients for given temperature and pressure conditions [6]. The model for predicting the flash point of mixtures take into account the non-ideality of the solution through liquid phase activity coefficients and have been used to predict efficiently the flash point of several mixtures [2,[7][8][9][10][11].…”

Section: Thermodynamic Modelmentioning

confidence: 99%

Flash-Point Prediction for Industrial Applications

Skřínská

Skřínský

Dolníček

et al. 2014

2014 International Conference on Mathematics and Computers in Sciences and in Industry

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This paper describes application of a model for predicting the flash point of binary alcohol mixtures. To confirm the predictive efficiency of the derived flash points values, the model was verified by comparing the predicted values with the experimental data for the selected mixtures. The flash points values determined were similar to those of predicted ones.However, the measured and predicted flash points were much different from those in MSDS. Therefore, manufacturers based on the results presented should be more careful when they use the MSDS values. Potential applications for the model concern the assessment of fire and explosion hazards, and the development of inherently safer designs for chemical processes containing binary mixtures of alcohols system.

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“…The flash points of pure chemical substances are widely reported in the literature 1,2,5,6 ; however, limited data are available for mixtures because the experimental measurements are relatively expensive and time‐consuming. Therefore, predictive theoretical methods have been studied to estimate the flash point of both pure compounds and mixtures 7 …”

Section: Introductionmentioning

confidence: 99%

“…There are several studies that describe methods to predict the flash point of simple mixtures with well‐defined and controlled characteristics using physicochemical parameters. These methods assume that the mixtures are ideal mixtures and that the liquid phase is in equilibrium with the vapor phase 4,7,8 . However, the calculation based on physicochemical models is not a trivial task, as complex mixtures (such as fragrances) may present large deviations from ideality, where depending on the parameters used, there may be differences in the order of tens 3,7 …”

Section: Introductionmentioning

confidence: 99%

Prediction of the flash point of fragrances by raman spectroscopy and multivariate calibration

Santos

Quellet

Poppi

2020

Flavour & Fragrance J

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In this work, we investigated the use of Raman spectroscopy for rapid, nondestructive, and low-cost determination of the flash point in fragrances. For this purpose, multivariate calibration based on partial least squares regression was applied to correlate the fragrances Raman spectra with the respective flash point estimated by the ASTM D7094-04 method. To perform this study, 32 fragrances having distinct odor profiles were chosen (referred to as "fragrance type" in the following), corresponding to a total of 81 batches produced in both factory and laboratory. For the samples in the prediction set, the correlation coefficient for the linear adjust between the flash point estimated by proposed methodology and the ASTM method was 0.9901, and the largest absolute error was 5.2°C. The proposed methodology presented an inverse of the analytical sensitivity of 2.1°C, that is, the minimum flash point difference which is discernible by the model. The results demonstrated that the proposed method is comparable to the standard method for analyzing the flash points of fragrances. K E Y W O R D Sflash point, fragrance, multivariate calibration, Raman spectroscopy

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Flash point of organic binary mixtures containing alcohols: experiment and prediction

Cited by 9 publications

References 11 publications

Flash Point of Fatty Acid Methyl Ester Binary Mixtures

Flash Point of Fatty Acid Methyl Ester Binary Mixtures

Flash-Point Prediction for Industrial Applications

Prediction of the flash point of fragrances by raman spectroscopy and multivariate calibration

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