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Title: A simulation-based model studying monoethanolamine and aprotic heterocyclic anion ionic liquid (AHA-IL) mixtures for carbon capture

Abstract

Capturing of waste CO2, particularly from large industrial point sources, is necessary for either permanent storage or CO2 utilization. Amine solvents used for carbon capture have certain drawbacks, particularly the high energy required by the reboiler for solvent regeneration and degradation of the amine with absorption/regeneration cycling. These challenges may be overcome using ionic liquids (ILs) that can be tailored for operating under typical flue gas stream conditions (8–10% CO2, 18–20% H2O, 2–3% O2, and 67–72% N2). ILs, however, oftentimes suffer from high viscosities, leading to diffusion limitations when compared to amine solvents. This work models the combinations of aprotic heterocyclic anion ILs (AHA-IL) with monoethanolamine (MEA) and studies the carbon capture effectiveness of these mixtures. Furthermore, this study found that all AHA-IL/MEA mixtures exhibited 32 % lower enthalpy of reaction (compared to MEA) and 64 % lower viscosity (compared to AHA-IL), which are desirable characteristics for CO2 capture solvents.

Authors:
 [1]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]
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  1. Lamar University, Beaumont, TX (United States)
Publication Date:
Research Org.:
Lamar Univ., Beaumont, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
2328555
Alternate Identifier(s):
OSTI ID: 2283984
Grant/Contract Number:  
FE0031558
Resource Type:
Accepted Manuscript
Journal Name:
Computers and Chemical Engineering
Additional Journal Information:
Journal Volume: 183; Journal ID: ISSN 0098-1354
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Carbon capture; Ionic liquid; Monoethanolamine; Viscosity; Absorption capacity

Citation Formats

Madugula, Adhish Chandra Saketh, Jeffryes, Clayton, Henry, James, Gossage, John, and Benson, Tracy J. A simulation-based model studying monoethanolamine and aprotic heterocyclic anion ionic liquid (AHA-IL) mixtures for carbon capture. United States: N. p., 2024. Web. doi:10.1016/j.compchemeng.2024.108599.
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Madugula, Adhish Chandra Saketh, Jeffryes, Clayton, Henry, James, Gossage, John, & Benson, Tracy J. A simulation-based model studying monoethanolamine and aprotic heterocyclic anion ionic liquid (AHA-IL) mixtures for carbon capture. United States. https://doi.org/10.1016/j.compchemeng.2024.108599
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Madugula, Adhish Chandra Saketh, Jeffryes, Clayton, Henry, James, Gossage, John, and Benson, Tracy J. Thu . "A simulation-based model studying monoethanolamine and aprotic heterocyclic anion ionic liquid (AHA-IL) mixtures for carbon capture". United States. https://doi.org/10.1016/j.compchemeng.2024.108599.
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@article{osti_2328555,
title = {A simulation-based model studying monoethanolamine and aprotic heterocyclic anion ionic liquid (AHA-IL) mixtures for carbon capture},
author = {Madugula, Adhish Chandra Saketh and Jeffryes, Clayton and Henry, James and Gossage, John and Benson, Tracy J.},
abstractNote = {Capturing of waste CO2, particularly from large industrial point sources, is necessary for either permanent storage or CO2 utilization. Amine solvents used for carbon capture have certain drawbacks, particularly the high energy required by the reboiler for solvent regeneration and degradation of the amine with absorption/regeneration cycling. These challenges may be overcome using ionic liquids (ILs) that can be tailored for operating under typical flue gas stream conditions (8–10% CO2, 18–20% H2O, 2–3% O2, and 67–72% N2). ILs, however, oftentimes suffer from high viscosities, leading to diffusion limitations when compared to amine solvents. This work models the combinations of aprotic heterocyclic anion ILs (AHA-IL) with monoethanolamine (MEA) and studies the carbon capture effectiveness of these mixtures. Furthermore, this study found that all AHA-IL/MEA mixtures exhibited 32 % lower enthalpy of reaction (compared to MEA) and 64 % lower viscosity (compared to AHA-IL), which are desirable characteristics for CO2 capture solvents.},
doi = {10.1016/j.compchemeng.2024.108599},
journal = {Computers and Chemical Engineering},
number = ,
volume = 183,
place = {United States},
year = {Thu Jan 25 00:00:00 EST 2024},
month = {Thu Jan 25 00:00:00 EST 2024}
}
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This content will become publicly available on January 25, 2025
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https://doi.org/10.1016/j.compchemeng.2024.108599
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