Vapor–Liquid Equilibrium Data for Binary Systems of n-Dodecane + {Propan-1-ol, Butan-1-ol, 2-Methylpropan-1-ol} at 40 kPa

Autor:	Latifa Negadi, Peterson Thokozani Ngema, Caleb Narasigadu, Zoubir Tebbal, Deresh Ramjugernath
Rok vydání:	2014
Předmět:	Activity coefficient Relative volatility Chemistry General Chemical Engineering Thermal conductivity detector Non-random two-liquid model Raoult's law Vapor–liquid equilibrium Thermodynamics Isobaric process General Chemistry Gas chromatography
Zdroj:	Journal of Chemical & Engineering Data. 59:1710-1713
ISSN:	1520-5134 0021-9568
Popis:	Isobaric (T–x–y) binary vapor–liquid equilibrium (VLE) data were measured and modeled for the n-dodecane + {propan-1-ol, butan-1-ol, or 2-methylpropan-1-ol} systems at 40 kPa. A low pressure dynamic still, capable of measuring systems of high relative volatility, was used for the measurements. The vapor and liquid equilibrium compositions were determined using a gas chromatograph with a thermal conductivity detector. The experimental data were regressed using the combined method (γ–φ approach). The nonrandom two-liquid (NRTL) activity coefficient model was used to describe the liquid phase nonideality, and the vapor phase was assumed to be ideal. The NRTL model parameters were determined using nonlinear least-squares regression. The experimental data were found to be well correlated with the thermodynamic modeling. No azeotropic behavior has been observed. The three investigated systems show a large positive deviation from Raoult’s law.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::60a35392d7187ea0196826397a5a0698 https://doi.org/10.1021/je500237g Zobrazit plný text záznamu