Loosely bonded dual-functionalized ionic liquid-based phase change solvent for energy-saving CO2 capture

Wang, Rujie; Qi, Cairao; Zhao, Huajun; Wang, Lemeng; Li, Qiangwei; Wang, Li Dong

doi:10.1016/j.fuel.2023.128748

Cited by 13 publications

(1 citation statement)

References 42 publications

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“…Notably, the viscosity of PILs was observed to be lower than that of conventional ILs, owing to a minimal hydrogen bond network, with the azolide presence as an anion being a contributing factor. Similarly, Mao et al and Wang et al conducted investigations into the synthesis of [DMAPA][Tz] and [DETA][1-MI] DFILs, respectively. Their investigations revealed that [DMAPA][Tz] could capture 1.95 mol-CO 2 /mol-IL, whereas [DETA][1-MI] exhibited a capture capacity of 2.06 mol CO 2 /mol IL.…”

Section: Introductionmentioning

confidence: 99%

Kinetics Study and Modeling of CO₂ Capture in New Class Dual-Functionalized Ionic Liquid Blend Methyl Diethanolamine Absorbents

Tiwari,

Pant,

Upadhyayula

2024

Ind. Eng. Chem. Res.

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In the capture of CO2 through the absorption process, selecting the absorbent blend system based on the absorption kinetics is crucial. This study focuses on the kinetic investigation of two new lab-synthesized dual-functionalized ionic liquids (DFILs), namely, T-Im and D-Im, which were employed as promoters in low-reactive aqueous methyldiethanolamine (MDEA) solvent for making a highly CO2 absorbing blend system. Then, CO2 absorption kinetic performance of these blends was assessed across a temperature range of 303–328 K. The results indicated a significant enhancement in the initial absorption rate with an increase in the DFIL concentration (2.5–10 wt %). The overall rate constant (k ov) values were higher in the capture using these DFILs compared to those with the reported promoters such as monoethanolamine (MEA), diethanolamine (DEA), and piperazine (PZ). The absorption rate followed the Arrhenius law with an activation energy of 25.61 kJ/mol for T-Im/MDEA and 24.87 kJ/mol for D-Im/MDEA, respectively. 13C NMR characterization confirmed that carbamate formation increased with an increasing T-Im concentration in the blend. The rate kinetic was modeled using the termolecular, zwitterion, and base-catalyzed hydration mechanisms. The rate equations based on the zwitterion mechanism for the T-Im and D-Im blended absorbents were k 2 , normalT − I m = 2.242 × 10 9 exp ( − 3531.09 T ) and k 2 , normalD − I m = 1.11 × 10 9 exp ( − 3504.22 T ) , respectively. The accuracy of the rate kinetic models expressed in terms of average absolute deviation (AAD) was found to be in the range of 4 to 8%.

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Section: Introductionmentioning

confidence: 99%

Kinetics Study and Modeling of CO₂ Capture in New Class Dual-Functionalized Ionic Liquid Blend Methyl Diethanolamine Absorbents

Tiwari,

Pant,

Upadhyayula

2024

Ind. Eng. Chem. Res.

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Biphasic solvents based on dual-functionalized ionic liquid for enhanced post-combustion CO2 capture and corrosion inhibition during the absorption process

Mao,

Li,

Yun

et al. 2024

Chemical Engineering Journal

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Capturing CO2 using novel nonaqueous biphasic solvent TMEDA/MEA/DMSO: Absorption and phase splitting mechanism

Jin,

Hou,

Zhan

et al. 2024

Chemical Engineering Journal

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Loosely bonded dual-functionalized ionic liquid-based phase change solvent for energy-saving CO2 capture

Cited by 13 publications

References 42 publications

Kinetics Study and Modeling of CO₂ Capture in New Class Dual-Functionalized Ionic Liquid Blend Methyl Diethanolamine Absorbents

Kinetics Study and Modeling of CO₂ Capture in New Class Dual-Functionalized Ionic Liquid Blend Methyl Diethanolamine Absorbents

Biphasic solvents based on dual-functionalized ionic liquid for enhanced post-combustion CO2 capture and corrosion inhibition during the absorption process

Capturing CO2 using novel nonaqueous biphasic solvent TMEDA/MEA/DMSO: Absorption and phase splitting mechanism

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Loosely bonded dual-functionalized ionic liquid-based phase change solvent for energy-saving CO2 capture

Cited by 13 publications

References 42 publications

Kinetics Study and Modeling of CO2 Capture in New Class Dual-Functionalized Ionic Liquid Blend Methyl Diethanolamine Absorbents

Kinetics Study and Modeling of CO2 Capture in New Class Dual-Functionalized Ionic Liquid Blend Methyl Diethanolamine Absorbents

Biphasic solvents based on dual-functionalized ionic liquid for enhanced post-combustion CO2 capture and corrosion inhibition during the absorption process

Capturing CO2 using novel nonaqueous biphasic solvent TMEDA/MEA/DMSO: Absorption and phase splitting mechanism

Contact Info

Product

Resources

About

Kinetics Study and Modeling of CO₂ Capture in New Class Dual-Functionalized Ionic Liquid Blend Methyl Diethanolamine Absorbents

Kinetics Study and Modeling of CO₂ Capture in New Class Dual-Functionalized Ionic Liquid Blend Methyl Diethanolamine Absorbents