SOYBEAN BIOESTER OBTAINED IN A BUBBLE COLUMN ESTERIFICATION REACTOR – A RHEOLOGICAL STUDY

Sorina  BORAN; Andra  TĂMĂȘ; Giannin  MOȘOARCĂ

doi:10.24193/subbchem.2019.4.03

SOYBEAN BIOESTER OBTAINED IN A BUBBLE COLUMN ESTERIFICATION REACTOR – A RHEOLOGICAL STUDY

Authors

Sorina BORAN Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University, Timișoara, Romania. Email: sorina.boran@upt.ro. https://orcid.org/0000-0001-7840-3393
Andra TĂMĂȘ Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University, Timișoara, Romania. Email: andra.tamas@upt.ro. https://orcid.org/0000-0001-6642-3960
Giannin MOȘOARCĂ Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University, Timișoara, Romania. Email: giannin.mosoarca@chim.upt.ro. https://orcid.org/0000-0002-3789-7726

DOI:

https://doi.org/10.24193/subbchem.2019.4.03

Keywords:

apparent viscosity, fatty acids, non-Newtonian behavior

Abstract

The paper presents the rheological characterization of a bio-ester with possible lubricant properties, obtained from soybean oil fatty acids. The rheological characterization was carried out under thermostatic conditions, using a Brookfield CAP2000+L viscometer in the characteristic domain of these fluids. The variation of the apparent viscosity η_a as a function of shear rate and the variation of the two indices (K and n) as a function of temperature were determined, as well as the flow activation energy, E_afrom Arrhenius type equations. A rheological model was proposed.

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STUDIA UBB CHEMIA, Volume 64 (LXIV), No. 4, December 2019

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Published

2019-12-30

How to Cite

BORAN, S. ., TĂMĂȘ, A. ., & MOȘOARCĂ, G. . (2019). SOYBEAN BIOESTER OBTAINED IN A BUBBLE COLUMN ESTERIFICATION REACTOR – A RHEOLOGICAL STUDY. Studia Universitatis Babeș-Bolyai Chemia, 64(4), 31–36. https://doi.org/10.24193/subbchem.2019.4.03