Isomorphic Viscosity Equation of State for Binary Fluid Mixtures

Acta Chimica Slovenica

Hashem Cheshmpak¹  Asma Jamali¹  Hassan Behnejad¹ 

[1] University of Tehran;

关键词: Viscosity;    Critical Phenomena;    Isomorphism Principle;    Binary Mixture.;   

DOI  :  10.17344/acsi.2015.1346

来源: DOAJ

【 摘 要 】

The thermodynamic behavior of the simple binary mixtures in the vicinity of critical line has a universal character and can be mapped from pure components using the isomorphism hypothesis. Consequently, based upon the principle of isomorphism, critical phenomena and similarity between P-Rho-T and T-Eta-P relationships, the viscosity model has been developed adopting two cubic, Soave-Redlich-Kwong (SRK) and Peng-Robinson (PR), equations of state (EsoS) for predicting the viscosity of the binary mixtures. This procedure has been applied to the methane-butane mixture and predicted its viscosity data. Reasonable agreement with the experimental data has been observed. In conclusion, we have shown that the isomorphism principle in conjunction with the mapped viscosity EoS suggests a reliable model for calculating the viscosity of mixture of hydrocarbons over a wide pressure range up to 35 MPa within the stated experimental errors.

【 授权许可】

Unknown