2-Hydroxypropyl-diethylenetriamine (HPDETA)-based nonaqueous absorbents for energy-efficient CO2 capture with high stability and low corrosivity

Wu, Yan; Qian, Jun; Jiang, Yao; Jia, Shaojun; Xu, Xin; Cui, Peng

doi:10.1016/j.seppur.2024.128819

Separation and Purification Technology

2025

DOI: 10.1016/j.seppur.2024.128819

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2-Hydroxypropyl-diethylenetriamine (HPDETA)-based nonaqueous absorbents for energy-efficient CO2 capture with high stability and low corrosivity

Yan Wu,

Jun Qian,

Yao Jiang

et al.

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Cited by 3 publications

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Insight and assessment of CO2 capture using diethylenetriamine/2-(diethylamino)ethanol/n-propanol water-lean biphasic solvent: Experimental and quantum chemical calculation

Zhang,

Qian,

Liu

et al. 2024

Chemical Engineering Journal

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Insight and assessment of CO2 capture using diethylenetriamine/2-(diethylamino)ethanol/n-propanol water-lean biphasic solvent: Experimental and quantum chemical calculation

Zhang,

Qian,

Liu

et al. 2024

Chemical Engineering Journal

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Propanediamine-based absorbents with functionalized hydroxypropyl for efficient CO2 capture via intramolecular synergy

Chen,

Jia,

Huang

et al. 2024

Separation and Purification Technology

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n-Butanol-Regulated Phase Separation of Aminoethylethanolamine (AEEA) as an Efficient Absorbent for CO₂ Capture

Huang,

Jia,

Chen

et al. 2024

Ind. Eng. Chem. Res.

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Amine-based CO 2 phase change absorbents (CPCAs) have received considerable attention for their potential energy efficiency. This study presents an aminoethylethanolamine (AEEA)-based CPCA using n-butanol (n-BuOH) as a phase separator for efficient CO 2 capture. The experimental results demonstrate that the obtained CPCA of AEEA/n-BuOH/H 2 O exhibited a 44.0% higher cyclic capacity and 24.9% lower regeneration energy consumption compared to AEEA/H 2 O. In addition, quantitative NMR analysis of the species distribution in both the upper and lower phases revealed an effective separation between the phase separator and the CO 2 products. Specifically, n-BuOH was present in the rich phase at only 3.2%, with the remainder consisting of CO 2 products. Moreover, the phase separation mechanism was elucidated by studying the difference in dipole moments of the substances during CO 2 capture. Overall, the n-BuOH-regulated AEEA-based CPCA shows promise as a candidate for practical CO 2 capture applications.

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2-Hydroxypropyl-diethylenetriamine (HPDETA)-based nonaqueous absorbents for energy-efficient CO2 capture with high stability and low corrosivity

Cited by 3 publications

References 56 publications

Insight and assessment of CO2 capture using diethylenetriamine/2-(diethylamino)ethanol/n-propanol water-lean biphasic solvent: Experimental and quantum chemical calculation

Insight and assessment of CO2 capture using diethylenetriamine/2-(diethylamino)ethanol/n-propanol water-lean biphasic solvent: Experimental and quantum chemical calculation

Propanediamine-based absorbents with functionalized hydroxypropyl for efficient CO2 capture via intramolecular synergy

n-Butanol-Regulated Phase Separation of Aminoethylethanolamine (AEEA) as an Efficient Absorbent for CO₂ Capture

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Product

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2-Hydroxypropyl-diethylenetriamine (HPDETA)-based nonaqueous absorbents for energy-efficient CO2 capture with high stability and low corrosivity

Cited by 3 publications

References 56 publications

Insight and assessment of CO2 capture using diethylenetriamine/2-(diethylamino)ethanol/n-propanol water-lean biphasic solvent: Experimental and quantum chemical calculation

Insight and assessment of CO2 capture using diethylenetriamine/2-(diethylamino)ethanol/n-propanol water-lean biphasic solvent: Experimental and quantum chemical calculation

Propanediamine-based absorbents with functionalized hydroxypropyl for efficient CO2 capture via intramolecular synergy

n-Butanol-Regulated Phase Separation of Aminoethylethanolamine (AEEA) as an Efficient Absorbent for CO2 Capture

Contact Info

Product

Resources

About

n-Butanol-Regulated Phase Separation of Aminoethylethanolamine (AEEA) as an Efficient Absorbent for CO₂ Capture