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

被引：3

作者：

Favareto, Rogerio ^{[1
,2
]}

Carvalho de Araujo, Paulo Cardozo ^{[2
]}

Bezerra, Isaac Dias ^{[1
]}

Zanette, Andreia Fatima ^{[3
]}

Arce, Pedro Felipe ^{[4
]}

Ferreira-Pinto, Leandro ^{[3
]}

Cardozo-Filho, Lucio ^{[2
,5
,6
]}

机构：

[1] Inst Fed Educ Ciencia & Tecnol Goiano, Campus Rio Verde, Rio Verde, Go, Brazil

[2] Univ Estadual Maringa, Dept Chem Engn, Maringa, Parana, 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] Sao Paulo State Univ UNESP, Campus Sao Joao da Boa Vista, Sao Joao Da Boa Vista, SP, Brazil

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

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2021年 / 170卷

基金：

巴西圣保罗研究基金会;

关键词：

PHBV; Chloroform; Supercritical; CO2; Phase equilibrium; VAPOR-LIQUID-EQUILIBRIUM; PHASE-EQUILIBRIUM; BETA-CAROTENE; SYSTEMS; FLUID; PRECIPITATION; MICROPARTICLES; NANOPARTICLES; MICROSPHERES; EXTRACTION;

D O I：

10.1016/j.supflu.2020.105140

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页数：11

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