Experimental data and thermodynamics modeling (PC-SAFT EoS) of the [CO2 + chloroform plus PHBV] system at high pressures

Author(s)

Favareto, Rogerio ^{[1, 2]} ; Carvalho de Araujo, Paulo Cardozo ^[1] ; Bezerra, Isaac Dias ^[2] ; Zanette, Andreia Fatima ^[3] ; Arce, Pedro Felipe ^[4] ; Ferreira-Pinto, Leandro ^[3] ; Cardozo-Filho, Lucio ^{[1, 5, 6]}

Affiliation

^[1] Univ Estadual Maringa, Dept Chem Engn, Maringa, Parana - Brazil

^[2] Inst Fed Educ Ciencia & Tecnol Goiano, Campus Rio Verde, Rio Verde, GO - Brazil

^[3] Sao Paulo State Univ UNESP, Campus Rosana, Rosana, SP - Brazil

^[4] Univ Sao Paulo, Engn Sch Lorena, Dept Chem Engn, Lorena, SP - Brazil

^[5] Ctr Univ Fundacao Ensino Octavio Bastos UNIFEOB, Res Ctr, Sao Joao Da Boa Vista, SP - Brazil

^[6] Sao Paulo State Univ UNESP, Campus Sao Joao da Boa Vista, Sao Joao Da Boa Vista, SP - Brazil

• Document type: Journal article
• Source: JOURNAL OF SUPERCRITICAL FLUIDS; v. 170, APR 2021.
• Web of Science Citations: 0

Abstract

Herein, the influence of HV (hydroxyvalerate) addition (8.0 and 8.7 wt% HV) on the PHBV (poly(3-hydroxybutyrate-co-3-hydroxyvalerate)) composition from the perspective of phase equilibrium in high-pressure [(CO2 (1) + chloroform (2) + {[}PHBV - 8.0 wt%] (3) and (CO2 (1) + chloroform (2) + {[}PHBV - 8.7 wt%] (3)] systems was examined using the static synthetic method with a visual variable-volume view cell at temperatures ranging from 303.15 to 333.15 K, pressures approximately 10 MPa, and different concentrations of PHBV (HV = 8.0 and 8.7 wt%) in chloroform (0.01 and 0.02 g.cm(-3)). Transitions of the solid-vapor-liquid (SVL) were observed. The experimentally determined phase transitions were successfully modeled using the PC-SAFT equation of state. (AU)

• FAPESP's process: 15/05155-8 - Modeling of the thermophysical properties of pure fluids (ionic liquids and components present in natural products) and thermodynamic behaviour of the phase equilibrium of mixtures
• Grantee: Pedro Felipe Arce Castillo
• Support Opportunities: Regular Research Grants
• FAPESP's process: 18/23063-1 - Phase and kinetic equilibrium study using Supercritical CO2 from the extraction of essential oils from plant matrices with anxiolytic potentials from the Paranapanema region
• Grantee: Leandro Ferreira Pinto
• Support Opportunities: Regular Research Grants
• FAPESP's process: 18/03739-0 - EXPERIMENTAL MEASUREMENT, CORRELATION AND PREDICTION OF THE FLUID PHASE BEHAVIOR OF SYSTEMS CONTAINING IONIC LIQUIDS (IMIDAZOLIUM) AND SUPERCRITICAL CO2.
• Grantee: Pedro Felipe Arce Castillo
• Support Opportunities: Regular Research Grants