Experimental Data and Thermodynamics Modeling (PC-SAFT EoS) of the {CO₂ + Acetone + Pluronic F-127} System at High Pressures

Abstract

In this study, we reported data of phase equilibria of the ternary {CO2 (1) + acetone (2) + pluronic F-127 (3)} system using the static synthetic method with a visual cell at temperatures ranging from 303 to 323 K, pressures near to 10 MPa, two concentrations of pluronic F-127 in acetone (0.01 g·cm–3 and 0.02 g·cm–3), and molar fractions varying between 0.3 to 0.9. The thermodynamic modeling using the perturbed-chain statistical associating fluid theory equation of state (PC-SAFT EoS) was capable of describing the behavior of the experimental data (liquid–vapor transitions bubble points) satisfactorily.

Experimental Measurements of the {CO2 (1) + Acetone (2) + Ivermectin (3)} System at High Pressure

“…Pressure–composition diagram comparison between {[CO 2 (1) + acetone (2)]} (open square: 303.15 K; solid square: 323.15 K) and {[CO 2 (1) + acetone (2) + ivermectin B1a (3)]} at concentrations of 0.029 mol·kg –1 (open circle: 303.15 K; solid circle: 323.15 K)}, 0.043 mol·kg –1 (open triangle: 303.15 K; solid triangle: 323.15 K), and 0.058 mol·kg –1 (open star: 303.15 K; solid star: 323.15 K).…”

“…However, the pressures required for solubilization of the system exceeded 35 MPa, which is the limit of operation of the experimental apparatus. Figure 5 presents a comparison between a binary {CO 2 (1) + acetone (2)} system reported in the literature 41 and the ternary systems studied in this work.…”

Gaseificação da biomassa em água supercrítica como tecnologia de produção de hidrogênio

“…Nesse estado ocorre a formação de uma névoa densa, na qual as fases líquidas e gasosas não podem ser distinguidas. Esta fase possui características intermediárias entre líquido e gás: alta permeabilidade como a dos gases, densidade e poder de solvatação dos líquidos (Brunner, 2009;Ferreira-Pinto et al, 2019;McHugh & Krukonis, 2013).…”