Feasible ionic liquid-amine hybrid solvents for carbon dioxide capture

Cao, Lingdi; Gao, Jubao; Zeng, Shaojuan; Dong, Haifeng; Gao, Hongshuai; Zhang, Xiangping; Huang, Junhua

doi:10.1016/j.ijggc.2017.09.015

Cited by 21 publications

(13 citation statements)

References 71 publications

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“…Ionic liquids (ILs) have emerged as potential solvents for gas separation (Zhang et al, 2013;Gao et al, 2015;Cao et al, 2017;Shang et al, 2017;Zhu et al, 2017) due to their outstanding properties, such as high thermal stability, low heat capacity, negligible vapor pressure and adjustable nature. ILs as CO 2 absorbents is one of the most effective alternatives to replace conventional aqueous alkanolamines solvents.…”

Section: Introductionmentioning

confidence: 99%

Protic ionic liquids with low viscosity for efficient and reversible capture of carbon dioxide

Bai

Zeng

et al. 2019

International Journal of Greenhouse Gas Control

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Protic ionic liquids (PILs) are considered as potential solvents for CO 2 capture due to their simple synthetic routes and unique properties. In this work, three low viscous PILs, tetramethylgunidinium imidazole ([TMGH][Im]), tetramethylgunidinium pyrrole ([TMGH][Pyrr]) and tetramethylgunidinium phenol ([TMGH][PhO]) were synthesized and the effect of anions, temperature, CO 2 partial pressure and water content on CO 2 absorption performance of PILs was also systematically studied. It was found that the PILs with larger basicity show higher CO 2 absorption capacity, and [TMGH][Im] simultaneously shows relatively high absorption rate and CO 2 absorption capacity of 0.154 g CO 2 /g IL at 40 ℃, 1 bar. The addition of H 2 O has a positive effect on gravimetric absorption capacity of CO 2 at the range of 0-20 wt% H 2 O, and the highest capacity of 0.186 g CO 2 /g IL was achieved as the water content was 7 wt%. In-situ FTIR, 13 C NMR and theoretical calculations verified that more stable bicarbonate are produced during CO 2 absorption by [TMGH][Im]-H 2 O system. However, neat [TMGH][Im] can react with CO 2 to form the reversible carbamate, leading to excellent recyclability after four absorption-desorption cycles. The results implied that neat [TMGH][Im] shows great potentials in CO 2 absorption applications.

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Section: Introductionmentioning

confidence: 99%

Protic ionic liquids with low viscosity for efficient and reversible capture of carbon dioxide

Bai

Zeng

et al. 2019

International Journal of Greenhouse Gas Control

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“…Among them, absorption technology is the most widely used, and aqueous monoethanolamine (MEA) is the most commonly applied solvent in industries. However, absorption technology with MEA suffers from the drawbacks of high energy usage, high solvent loss, and degradation, and thus, novel absorbents with low heat capacity and high stability are under development, such as ionic liquids (ILs) …”

Section: Introductionmentioning

confidence: 99%

Energy, Cost, and Environmental Assessments of Methanol Production via Electrochemical Reduction of CO₂ from Biosyngas

Chang

Lundgren

et al. 2023

ACS Sustainable Chem. Eng.

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Electrochemical reduction of CO 2 removed from biosyngas into value-added methanol (CH 3 OH) provides an attractive way to mitigate climate change, realize CO 2 utilization, and improve the overall process efficiency of biomass gasification. However, the economic and environmental feasibilities of this technology are still unclear. In this work, economic and environmental assessments for the stand-alone CO 2 electrochemical reduction (CO 2 R) toward CH 3 OH with ionic liquid as the electrolyte and the integrated process that combined CO 2 R with biomass gasification were conducted systematically to identify key economic drivers and provide technological indexes to be competitive. The results demonstrated that costs of investment associated with CO 2 R and electricity are the main contributors to the total production cost (TPC). Integration of CO 2 R with CO 2 capture/purification and biomass gasification could decrease TPC by 28%−66% under the current and future conditions, highlighting the importance of process integration. Energy and environmental assessment revealed that the energy for CO 2 R dominated the main energy usage and CO 2 emissions, and additionally, the energy structure has a great influence on environmental feasibility. All scenarios could provide climate benefits over the conventional coalto-CH 3 OH process if renewable sources are used for electricity generation.

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“…In view of the promising potential of ionic liquids in CO 2 absorption, 45−47 an ionic liquid-tuned functional electrolyte has been developed to gas capture. 48 Meanwhile, the ionic liquid can significantly improve the cell's high-temperature stability, 49−51 safety performance, 52 power performance, and corrosion inhibition. 53 The actual energy consumption of EVs directly affects the charging and discharging energies within a certain distance, which is more realistic and convenient for consumers.…”

Section: ■ Introductionmentioning

confidence: 99%

Ultrahigh Power Density and Safety Induced by Ultrathin Electrode Design and Bi-Salt Electrolyte Tailored Lithium Ion Batteries toward Durable 48 V Start/Stop Application

Cao

Gao

et al. 2023

Ind. Eng. Chem. Res.

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It is a bottleneck issue for state-of-the-art start/stop batteries used in commercialized electrical vehicles to have a long cycling life, high power output, and understanding safety performance. In this work, we fabricate prismatic cells to unravel how these tradeoffs can be balanced based on the material and cell design. Small-particle Li[Ni1/3Co1/3Mn1/3]O2 ternary materials with surface modification and isotropous graphite are respectively employed as cathode and anode to provide super power density. Ceramic-coated separators with high permeability and wide-temperature electrolytes with high conductivities enable the safety and cold cranking performance. Ultrathin-coating electrodes and whole poles are achieved to shorten the transferring distance of Li ions and promote the efficiency of Li intercalation and deintercalation kinetics, which demonstrates the lower internal resistance and current density. By unlocking charge transfer limitations, the cell presents a high discharge power density of >5000 W/kg at 25 °C, a 50% SOC (state of charge), and excellent cold cranking characteristics at −30 °C. A capacity retention of 3 C (100% depth of discharge, DoD) cycling approaches 80% over 6800 cycles at 25 °C and 4300 cycles at 45 °C. Also, a capacity retention of cycling at room temperature according to worldwide light vehicle test procedures reaches up to 92.3% over 6000 cycles with the energy throughput of 614.5 kWh and direct charge internal resistance does not soar with the cycling ongoing. The mechanism of the capacity loss is dissolved Ni, Co, and Mn, which results in irreversible loss of Li. The cell shows high safety characteristics by passing the 3 C overcharge and nail penetration tests. It is evident that the reported cell can be a promising commercialized candidate for 48 V start/stop and hybrid electric vehicle solutions.

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Feasible ionic liquid-amine hybrid solvents for carbon dioxide capture

Cited by 21 publications

References 71 publications

Protic ionic liquids with low viscosity for efficient and reversible capture of carbon dioxide

Protic ionic liquids with low viscosity for efficient and reversible capture of carbon dioxide

Energy, Cost, and Environmental Assessments of Methanol Production via Electrochemical Reduction of CO₂ from Biosyngas

Ultrahigh Power Density and Safety Induced by Ultrathin Electrode Design and Bi-Salt Electrolyte Tailored Lithium Ion Batteries toward Durable 48 V Start/Stop Application

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Feasible ionic liquid-amine hybrid solvents for carbon dioxide capture

Cited by 21 publications

References 71 publications

Protic ionic liquids with low viscosity for efficient and reversible capture of carbon dioxide

Protic ionic liquids with low viscosity for efficient and reversible capture of carbon dioxide

Energy, Cost, and Environmental Assessments of Methanol Production via Electrochemical Reduction of CO2 from Biosyngas

Ultrahigh Power Density and Safety Induced by Ultrathin Electrode Design and Bi-Salt Electrolyte Tailored Lithium Ion Batteries toward Durable 48 V Start/Stop Application

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Energy, Cost, and Environmental Assessments of Methanol Production via Electrochemical Reduction of CO₂ from Biosyngas