Kinetic and heat duty study of aprotic heterocyclic anion-based dual functionalized ionic liquid solutions for carbon capture

Lv, Bihong; Wu, Junhai; Lin, Chengrui; Zhou, Zhen; Jing, Guohua

doi:10.1016/j.fuel.2019.116676

Cited by 26 publications

(5 citation statements)

References 40 publications

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“…According to the energy consumption calculation method proposed by Leites, the energy consumption ( Q regen ) required to desorb 1 ton of CO 2 can be divided into three parts: the CO 2 reaction heat ( Q reac ), the sensible heat for heating the CO 2 -rich phase to the regeneration temperature ( Q sens ), and the latent heat for solvent vaporization ( Q latent ). , The calculation equations of Q regen are listed in eqs S6– S9. The heat flux solid lines for CO 2 absorption in the [N 2222 ][1,2,4-Triz]/N-MI solvents with different mass ratios are illustrated at 40 °C and 1 bar in Figure a.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, Table lists the parameters for calculating energy consumption. Notably, compared with 30 wt % MEA aqueous solution (3.77 GJ/ton CO 2 ), the [N 2222 ][1,2,4-Triz]/N-MI biphasic solvents with different mass ratios exhibited a significant reduction of 65–68% in the regeneration energy consumption. Specifically, the regeneration energy consumption of [N 2222 ][1,2,4-Triz]/N-MI (5:4) under 15% CO 2 partial pressure was 1.00 GJ/ton CO 2 , demonstrating great potentials as an energy-efficient alternative for CO 2 capture from flue gas.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, Table 2 lists the parameters for calculating energy consumption. Notably, compared with 30 wt % MEA aqueous solution (3.77 GJ/ton CO 2 ), 7…”

Section: Regeneration Energy Consumption Calculationsmentioning

confidence: 99%

“…However, high energy consumption of organic amine solvents is the main hindrance of large-scale applications for CO 2 capture due to high CO 2 reaction enthalpy with amines and large amounts of water vaporization. For example, the energy consumption of MEA aqueous solution regeneration for CO 2 capture from industrial flue gas was 3.50–4.20 GJ/ton CO 2 . − Therefore, it has become a great challenge to develop novel solvents with low volatility, high absorption performance, and low energy consumption. , …”

Section: Introductionmentioning

confidence: 99%

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A Water-Lean Triazole Ionic Liquid Biphasic Solvent for Energy-Efficient CO₂ Capture Through Reversible Polarity and Intermolecular Hydrogen Bonding

Sun,

Zeng,

Peng

et al. 2024

Ind. Eng. Chem. Res.

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The development of novel functionalized solvents with low volatility, high mass capacity, and low energy consumption for CO 2 capture technology is still a significant challenge. In this study, two triazole-functionalized ionic liquids (TFILs) were designed and combined with imidazole organic solvents as phase separation agents to form novel biphasic solvents for CO 2 capture. When the mass ratio of [N 2222 ][1,2,4-Triz]/1methylimidazole (N-MI) was 5:4, the CO 2 capacity reached 0.112 g of CO 2 /g of solvent at 40 °C and 1 bar, in which the CO 2 -rich phase accounts for 95% of the total CO 2 capacity and 60% of the total volume. Meanwhile, the energy consumption for CO 2 desorption of [N 2222 ][1,2,4-Triz]/N-MI (5:4) was 1.29 GJ/ton CO 2 , which is 65.78% lower than that of 30 wt % MEA aqueous solution. The results indicated that [N 2222 ][1,2,4-Triz] can react with CO 2 to produce carbamate that existed in the CO 2 -rich phase. Therefore, the original homogeneous liquid was transformed into liquid−solid phase during CO 2 absorption due to the great difference in polarity between imidazole organic solvents and carbamate products, as well as strong intermolecular hydrogen bonding between carbamate products. This study provides useful guidance for designing novel phase-change solvents with high CO 2 absorption performance and low energy consumption.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…In addition, Table 2 lists the parameters for calculating energy consumption. Notably, compared with 30 wt % MEA aqueous solution (3.77 GJ/ton CO 2 ), 7…”

Section: Regeneration Energy Consumption Calculationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Water-Lean Triazole Ionic Liquid Biphasic Solvent for Energy-Efficient CO₂ Capture Through Reversible Polarity and Intermolecular Hydrogen Bonding

Sun,

Zeng,

Peng

et al. 2024

Ind. Eng. Chem. Res.

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“…Significant progress was achieved in capturing CO 2 by the functionalized RTILs within recent years. [52][53][54] Chen and coworkers studied (3-aminopropyl)tributylphosphonium glycinate in the aqueous medium. 55 In their research, CO 2 uptake occurs due to the neutralization reaction of the dual amino bases.…”

Section: Introductionmentioning

confidence: 99%

Ammonium-, phosphonium- and sulfonium-based 2-cyanopyrrolidine ionic liquids for carbon dioxide fixation

Chaban

Andreeva

Voroshylova

2022

Phys. Chem. Chem. Phys.

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State of the art of ionic liquid‐modified adsorbents forCO₂capture and separation

Zheng

Zeng

et al. 2021

AIChE Journal

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The enormous emission of carbon dioxide (CO 2 ) from industries has triggered a series of environmental issues. In recent years, ionic liquids (ILs) as novel absorbents are widely used for CO 2 capture owing to their low vapor pressure and tunable structures. IL-modified adsorbents have the advantages of both ILs and porous supports, such as high CO 2 selectivity and high specific surface area, which are novel agents to capture CO 2 with broad application prospects. In this review, more than 140 IL-modified adsorbents for CO 2 capture in recent years were systematically summarized. The types of ILs including conventional ILs and functionalized ILs on CO 2 separation performance of different IL hybrid adsorbents, and their adsorption mechanisms were also discussed. Finally, future perspectives on IL-modified adsorbents for CO 2 separation were further posed.

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Kinetic and heat duty study of aprotic heterocyclic anion-based dual functionalized ionic liquid solutions for carbon capture

Cited by 26 publications

References 40 publications

A Water-Lean Triazole Ionic Liquid Biphasic Solvent for Energy-Efficient CO₂ Capture Through Reversible Polarity and Intermolecular Hydrogen Bonding

A Water-Lean Triazole Ionic Liquid Biphasic Solvent for Energy-Efficient CO₂ Capture Through Reversible Polarity and Intermolecular Hydrogen Bonding

Ammonium-, phosphonium- and sulfonium-based 2-cyanopyrrolidine ionic liquids for carbon dioxide fixation

State of the art of ionic liquid‐modified adsorbents forCO₂capture and separation

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Kinetic and heat duty study of aprotic heterocyclic anion-based dual functionalized ionic liquid solutions for carbon capture

Cited by 26 publications

References 40 publications

A Water-Lean Triazole Ionic Liquid Biphasic Solvent for Energy-Efficient CO2 Capture Through Reversible Polarity and Intermolecular Hydrogen Bonding

A Water-Lean Triazole Ionic Liquid Biphasic Solvent for Energy-Efficient CO2 Capture Through Reversible Polarity and Intermolecular Hydrogen Bonding

Ammonium-, phosphonium- and sulfonium-based 2-cyanopyrrolidine ionic liquids for carbon dioxide fixation

State of the art of ionic liquid‐modified adsorbents forCO2capture and separation

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Product

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A Water-Lean Triazole Ionic Liquid Biphasic Solvent for Energy-Efficient CO₂ Capture Through Reversible Polarity and Intermolecular Hydrogen Bonding

A Water-Lean Triazole Ionic Liquid Biphasic Solvent for Energy-Efficient CO₂ Capture Through Reversible Polarity and Intermolecular Hydrogen Bonding

State of the art of ionic liquid‐modified adsorbents forCO₂capture and separation