Solubility of CO<sub>2</sub> in nonaqueous system of 2-(butylamino)ethanol with 2-butoxyethanol: Experimental data and model representation

Yu Dong; Tiantian Ping; Shufeng Shen

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Solubility of CO₂ in nonaqueous system of 2-(butylamino)ethanol with 2-butoxyethanol: Experimental data and model representation

Chemical Engineering Thermodynamics | Updated：2026-01-06

- Solubility of CO₂ in nonaqueous system of 2-(butylamino)ethanol with 2-butoxyethanol: Experimental data and model representation
- Chinese Journal of Chemical Engineering Vol. 41, Issue 1, Pages: 441-448(2022)
- Affiliations：
  
  School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology,Shijiazhuang,China,050018
- Author bio：
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- DOI：
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- Published：2022
- Accepted：
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in nonaqueous system of 2-(butylamino)ethanol with 2-butoxyethanol: Experimental data and model representation[J]. 中国化学工程学报, 2022, 41(1): 441-448.
DOI：

in nonaqueous system of 2-(butylamino)ethanol with 2-butoxyethanol: Experimental data and model representation[J]. 中国化学工程学报, 2022, 41(1): 441-448. DOI：

摘要

Abstract

Nonaqueous amine-based system is an attractive solution to overcome high-energy-intensive CO

capture process using the conventional aqueous amines. Advanced nonaqueous absorbent of 2- (butylamino)ethanol (BAE) with 2-butoxyethanol (2-BE) has been recently proposed for low-energyconsumption CO

capture. In this work

Henry’s law constants of CO

in the BAE/2-BE blend were obtained by N

O/CO

analogy

and correlated in the temperature range of (283–333) K. Vapor-liquid equilibrium (VLE) data for the BAE + CO

+ 2-BE system at 65.4% (mass) BAE were also determined in a stirred equilibrium cell at temperatures of (313–393) K and CO

partial pressures up to 275 kPa. A single apparent equilibrium constant

app

was proposed for this system and correlated as a function of temperature

carbonated degree of amine and CO

loading. Solubility data were well represented by the modified Kent-Eisenberg model with an average absolute relative deviation (AARD) of 13%.

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Solubility of CO2 in nonaqueous system of 2-(butylamino)ethanol with 2-butoxyethanol: Experimental data and model representation

DOI：

摘要

Abstract

关键词

Keywords

references

Solubility of CO₂ in nonaqueous system of 2-(butylamino)ethanol with 2-butoxyethanol: Experimental data and model representation