Performance and pressure drop of CO2 absorption into task-specific and halide-free ionic liquids in a microchannel

The gas-liquid two-phase flow pattern, absorption rate and pressure drop of CO2 absorbed into the aqueous solution of the task-specific ionic liquid (1-aminopropyl-3-methylimidazole tetrafluoroborate [Apmim][BF4] and 1- hydroxyethyl-3-methylimidazole tetrafluoroborate [OHemim][BF4]) and halide-free ionic liquid 1- butyl -3-methylimidazolium methylsulfate [Bmim][CH3SO4] were investigated in a microreactor. The absorption mechanism of the three ionic liquids was analyzed employing the 13C NMR spectroscopy. The [Apmim][BF4] was found to have the best ability of CO2 capture compared to the other two ionic liquids, as chemical absorption occurred between [Apmim][BF4] and CO2, while only physical absorption took place between [OHemim][BF4] / [Bmim][CH3SO4] and CO2. The sequence of CO2 absorption rate in three ionic liquid aqueous solutions is: [Apmim][BF4] > [Bmim][CH3SO4] >[OHemim][BF4]. Furthermore, the effects of gas-liquid flow rate and ionic liquids concentration on CO2 absorption rate and pressure drop were studied, the pressure drop models based on various flow patterns were proposed.

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Evaluation of Capability of Some Amino Acid-based Poly (Ionic Liquid)s as Biocompatible Agent for Co2 Absorption

10.21203/rs.3.rs-1123236/v1 ◽

2021 ◽

Author(s):

Narmin Noorani ◽

Abbas Mehrdad

Keyword(s):

Ionic Liquid ◽

Amino Acid ◽

Absorption Capacity ◽

Co2 Absorption ◽

Absorption Mechanism ◽

Chemical Absorption ◽

Ft Ir ◽

Poly Ionic Liquid ◽

Reaction Equilibrium ◽

Ft Ir Spectroscopy

Abstract In this study, seven amino acid-based poly(ionic liquid)s (AAPILs) such as poly(1-butyl-3-vinylimidazolium glycinate), P[VBIm][Gly], poly (1-butyl-3-vinylimidazolium alaninate), P[VBIm][Ala], poly(1-butyl-3-vinylimidazolium valinate), P[VBIm][Val], poly(1-butyl-3-vinylimidazolium prolinate) P[VBIm][Pro], poly(1-butyl-3-vinylimidazolium hisdinate), P[VBIm][His], poly(1-butyl-3-vinylimidazolium lysinate), P[VBIm][Lys], and poly(1-butyl-3-vinylimidazolium arginate), P[VBIm][Arg] have been synthesized, characterized, and their CO2 absorption capacities were investigated using quartz crystal microbalance (QCM) at temperature range 288.15–308.15 and pressures up to 5 bar. Based on the absorption mechanism, the reaction equilibrium thermodynamic model is applied to correlating the experimental CO2 absorption capacities. The reaction equilibrium constant and Henry’s law constant were calculated to evaluate the efficiency of the AAPILs for CO2 absorption. In the investigated AAPILs, the CO2 absorption capacity was as follows: P[VBIm][Arg] > P[VBIm][Lys] > P[VBIm][His] > P[VBIm][Pro] > P[VBIm][Gly] > P[VBIm][Val] > P[VBIm][Ala]. The accessibility of available more amine groups in AAPIL with arginate anion is the main factor for the high CO2 absorption capacity. Also, chemical absorption of CO2 via carbamate formation was corroborated by FT-IR spectroscopy.

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Research Trends of Carbon Dioxide Capture using Ionic Liquids and Aqueous Amine-Ionic Liquids Mixtures

Scientific Research Journal ◽

10.24191/srj.v13i1.9382 ◽

2016 ◽

Vol 13 (1) ◽

pp. 53

Author(s):

Siti Nabihah Jamaludin ◽

Ruzitah Mohd Salleh

Keyword(s):

Ionic Liquids ◽

Co2 Capture ◽

Membrane Separation ◽

Carbon Dioxide Capture ◽

Global Climate ◽

Research Trends ◽

Co2 Absorption ◽

Absorption Process ◽

Chemical Absorption ◽

Factors Influencing

Anthropogenic CO2 emissions has led to global climate change and widely contributed to global warming since its concentration has been increasing over time. It has attracted vast attention worldwide. Currently, the different CO2 capture technologies available include absorption, solid adsorption and membrane separation. Chemical absorption technology is regarded as the most mature technology and is commercially used in the industry. However, the key challenge is to find the most efficient solvent in capturing CO2. This paper reviews several types of CO2 capture technologies and the various factors influencing the CO2 absorption process, resulting in the development of a novel solvent for CO2 capture.

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DFT Study on the Chemical Absorption Mechanism of CO2 in Diamino Protic Ionic Liquids

The Journal of Physical Chemistry B ◽

10.1021/acs.jpcb.0c08500 ◽

2021 ◽

Vol 125 (5) ◽

pp. 1416-1428

Author(s):

Jing Ma ◽

Yutong Wang ◽

Xueqing Yang ◽

Mingxuan Zhu ◽

Baohe Wang

Keyword(s):

Ionic Liquids ◽

Dft Study ◽

Protic Ionic Liquids ◽

Absorption Mechanism ◽

Chemical Absorption

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Two-phase (gas—liquid) flow phenomena—I Pressure drop and hold-up for two-phase flow in vertical tubes

Chemical Engineering Science ◽

10.1016/0009-2509(60)87004-2 ◽

1960 ◽

Vol 12 (2) ◽

pp. 109-126 ◽

Cited By ~ 45

Author(s):

G.H. Anderson ◽

B.G. Mantzouranis

Keyword(s):

Pressure Drop ◽

Liquid Flow ◽

Two Phase Flow ◽

Phase Flow ◽

Two Phase ◽

Flow Phenomena ◽

Gas Liquid Flow ◽

Vertical Tubes

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An absorption mechanism and polarity-induced viscosity model for CO2 capture using hydroxypyridine-based ionic liquids

Physical Chemistry Chemical Physics ◽

10.1039/c6cp07209g ◽

2017 ◽

Vol 19 (2) ◽

pp. 1134-1142 ◽

Cited By ~ 12

Author(s):

Xiaowei An ◽

Xiao Du ◽

Donghong Duan ◽

Lijuan Shi ◽

Xiaogang Hao ◽

...

Keyword(s):

Ionic Liquids ◽

Co2 Capture ◽

Viscosity Model ◽

Absorption Mechanism ◽

Chemical Absorption

A series of new hydroxypyridine-based ionic liquids (ILs) are synthesized and applied in CO2 capture through chemical absorption.

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Partitioning behavior of recombinant lipase in Escherichia coli by ionic liquid-based aqueous two-phase systems

RSC Advances ◽

10.1039/c6ra16722e ◽

2016 ◽

Vol 6 (86) ◽

pp. 82571-82580 ◽

Cited By ~ 4

Author(s):

Muhammad Hakimi Hadzir ◽

Sahar Abbasiliasi ◽

Arbakariya B. Ariff ◽

Siti Baidurah Yusoff ◽

Hui Suan Ng ◽

...

Keyword(s):

Escherichia Coli ◽

Ionic Liquid ◽

Ionic Liquids ◽

Fermentation Broth ◽

Two Phase ◽

E Coli ◽

Recombinant Lipase ◽

Aqueous Two Phase Systems ◽

Phase Systems ◽

Partitioning Behavior

Evaluations of ILATPSs were performed with a variety of ionic liquids and salts as phase components to figure out their competencies in the recovery of lipase from a fermentation broth of E. coli using banana waste as a substrate.

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Synthesis, magnetism, aqueous-two phase formation and physical properties of novel guanidinium-based magnetic ionic liquids

RSC Advances ◽

10.1039/c6ra09879g ◽

2016 ◽

Vol 6 (58) ◽

pp. 52898-52904 ◽

Cited By ~ 10

Author(s):

Tian Yao ◽

Shun Yao ◽

Dan Tang ◽

Long Jing ◽

Daocai Wang ◽

...

Keyword(s):

Ionic Liquid ◽

Ionic Liquids ◽

Physical Properties ◽

Phase Formation ◽

Two Phase ◽

Magnetic Ionic Liquids ◽

Aqueous Two Phase Systems ◽

Magnetic Ionic Liquid ◽

Phase Systems

A novel magnetic ionic liquid aqueous two-phase systems (MILATPs) has been developed, based on a series of novelly synthesized guanidinium-based magnetic ionic liquids.

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