Solubility of Carbon Dioxide in Carboxylic Acid-Based Deep Eutectic Solvents

被引：21

作者：

Rabhi, Fadhila ^{[1
]}

Mutelet, Fabrice ^{[2
]}

Sifaoui, Hocine ^{[1
]}

机构：

[1] Univ Abderrahmane Mira Bejaia, Fac Sci Exactes, Dept Chim, Lab Phys Chim Mat & Catalyse LPCMC, Bejaia 06000, Algeria

[2] Univ Lorraine, Lab React & Genie Proc, UMR CNRS 7274, 1 Rue Grandville, F-54001 Nancy, France

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2021年 / 66卷 / 01期

关键词：

SOLUTES THERMODYNAMIC PROPERTIES; AQUEOUS POTASSIUM-SALT; PERTURBED-CHAIN SAFT; EQUATION-OF-STATE; CHOLINE-CHLORIDE; IONIC LIQUIDS; L-PHENYLALANINE; CO2; PRESSURE; CAPTURE;

D O I：

10.1021/acs.jced.0c00844

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The solubility of carbon dioxide (CO2) in three carboxylic acid-based deep eutectic solvents (DESs) constituted by tetrabutylammonium bromide (TBABr)/octanoic acid (1:2) or TBABr/decanoic acid (1:2) or (DL-menthol/dodecanoic acid) (2:1) was measured using a high-pressure variable volume cell at a temperature ranging from 293.15 to 373.15 K and a pressure up to 122.9 bar. Under 40 bar and at 313.15 K, the best CO2 solubility (2.53 mol(CO2) kg(DES)(-1)) was found with TBABr/decanoic acid (1:2). Experimental measurements were correlated using the PC-SAFT strategy. In this work, the DESs are defined as pseudo-pure components and their PC-SAFT parameters were obtained by fitting to the density data of pure DESs. It was found that the PC-SAFT equation of state represents the CO2 solubility in carboxylic acid-based DESs with good accuracy.

引用

页码：702 / 711

页数：10