Modeling of transport and volumetric properties of tributylamine based absorbents for CO2 capture

The excess molar volume (V-m(E)), deviation in dynamic viscosity (Delta eta), excess Gibb's energy of activation were calculated fromthe measured density (rho) and dynamic viscosity (eta) for tributylamine (TBA) with alkanol (C-1-C-3) at T=(298.15-323.15) K and at pressure of 0.1 MPa. The partial, excess partial and apparent molar volumes were derived from V-m(E) values. The Delta eta were described by Singh model as well as by Bloomfield and Dewan model. It was found that depolymerisation power of alkanol depends on the unlike interactions between TBA and alkanol. The thermodynamic parameters of activation for present binary mixtureswere also calculated. The eta values were further correlated using models/correlations with zero to four adjustable interactional parameters like Kendall-Monroe, Bingham, Arrhenius, Kendall, Frenkel, Grunberg-Nissan, Tamura-Kurata, Hind-McLaughlin-Ubbelohde, Katti-Chaudhari, McAllister's, Heric, Iulian, Krishnan and Laddha correlations. The prediction capabilities of these correlations/models were expressed in terms of standard deviation. (C) 2020 Elsevier B.V. All rights reserved.