ABSTRACT

The thermodynamics properties of the mixtures of biodiesel and petroleum-based fuel are useful for the research of blending fuels. Biodiesel is mainly consisting of fatty acid alkyl esters. Densities and viscosity for the binary mixtures of three fatty acid methyl esters (methyl decanoate, methyl dodecanoate and methyl tetradecanoate) with methylcyclohexane (MCH) were measured at 7 temperatures from 293.15 to 323.15 K and at atmospheric pressure. Excess molar volumes and viscosity deviations of the three binary systems have been correlated and fitted to Redlich-Kister equation. The change of enthalpy, entropy and Gibbs energy of activation for the flow process for the binary mixtures were calculated on the basis of Eyring's absolute reaction rate theory. The experimental data and correlated results could provide important information for the research of the blends of biodiesel and diesel oil.

Compounds

#	Formula	Name
1	C11H22O2	methyl decanoate
2	C13H26O2	methyl dodecanoate
3	C15H30O2	methyl tetradecanoate
4	C7H14	methylcyclohexane

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	7
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	7
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	7
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	7
POMD	4 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	77
POMD	4 1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	77
POMD	4 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	77
POMD	4 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	77
POMD	4 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	77
POMD	4 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	77

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Measurement and correlation of density and viscosity of binary mixtures of fatty acid (methyl esters + methylcyclohexane)

Li, Dan, Guo, Meng, Wang, Xia, Lin, Shutong, Jia, Wei, Wang, Guangyi

ABSTRACT