6533b82afe1ef96bd128bfde

RESEARCH PRODUCT

Isobaric Vapor−Liquid Equilibria for the Binary System 3-Methylpentane + 2-Methyl-2-propanol and for the Ternary System Methyl 1,1-Dimethylethyl Ether + 3-Methylpentane + 2-Methyl-2-propanol at 101.3 kPa

Josep M. Penya-rojaPaula MarzalAnd Juan B. MontónCarmen Gabaldón

subject

Propanolchemistry.chemical_compoundUNIQUACTernary numeral systemchemistryGeneral Chemical EngineeringAzeotropeNon-random two-liquid modelThermodynamicsGeneral ChemistryBinary systemTernary operation3-Methylpentane

description

Isobaric vapor−liquid equilibria data were obtained for the 3-methylpentane + 2-methyl-2-propanol binary system and methyl 1,1-dimethylethyl ether + 3-methylpentane + 2-methyl-2-propanol ternary system at 101.3 kPa in a temperature range from 329 to 356 K. The data were found to be thermodynamically consistent according to the Van Ness−Byer−Gibbs method for the binary system and according to the McDermott−Ellis method for the ternary one. The binary system shows a minimum boiling azeotrope that boils at 333.4 K and contains 82.6 mol % of 3-methylpentane. The binary interaction parameters obtained from this work and literature data are used to predict the vapor−liquid equilibrium for the ternary system using the UNIQUAC, NRTL, and Wilson models. The ternary system is well predicted from binary data.

https://doi.org/10.1021/je990105l