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Tytuł:
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Polyethylene glycol-based deep eutectic solvents as a novel agent for natural gas sweetening.
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Autorzy:
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Aldawsari JN; Department of Chemical Engineering, King Saud University, Riyadh, Saudi Arabia.; King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia.
Adeyemi IA; Department of Chemical Engineering, Khalifa University, SAN Campus, Abu Dhabi, United Arab Emirates.
Bessadok-Jemai A; Department of Chemical Engineering, King Saud University, Riyadh, Saudi Arabia.
Ali E; Department of Chemical Engineering, King Saud University, Riyadh, Saudi Arabia.
AlNashef IM; Department of Chemical Engineering, Khalifa University, SAN Campus, Abu Dhabi, United Arab Emirates.
Hadj-Kali MK; Department of Chemical Engineering, King Saud University, Riyadh, Saudi Arabia.
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Źródło:
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PloS one [PLoS One] 2020 Sep 21; Vol. 15 (9), pp. e0239493. Date of Electronic Publication: 2020 Sep 21 (Print Publication: 2020).
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Typ publikacji:
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Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
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Język:
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English
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Imprint Name(s):
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Original Publication: San Francisco, CA : Public Library of Science
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MeSH Terms:
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Natural Gas/*analysis
Oil and Gas Industry/*methods
Polyethylene Glycols/*chemistry
Solvents/*chemistry
Absorption, Physicochemical ; Bromides ; Caprylates ; Carbon Dioxide/analysis ; Choline ; Computer Simulation ; Environmental Pollution/prevention & control ; Equipment Design ; Hydrogen Bonding ; Models, Chemical ; Molecular Structure ; Oil and Gas Industry/economics ; Oil and Gas Industry/instrumentation ; Onium Compounds ; Quaternary Ammonium Compounds ; Salts ; Temperature ; Thermodynamics ; Transition Temperature ; Trityl Compounds
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References:
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PLoS One. 2013;8(3):e59145. (PMID: 23554985)
J Phys Chem B. 2016 Mar 10;120(9):2300-10. (PMID: 26814164)
Molecules. 2018 Jul 28;23(8):. (PMID: 30060584)
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Substance Nomenclature:
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0 (Bromides)
0 (Caprylates)
0 (Natural Gas)
0 (Onium Compounds)
0 (Quaternary Ammonium Compounds)
0 (Salts)
0 (Solvents)
0 (Trityl Compounds)
142M471B3J (Carbon Dioxide)
15912-74-0 (triphenylmethylphosphonium)
3WJQ0SDW1A (Polyethylene Glycols)
CBU2X6BBJR (tetrabutylammonium)
N91BDP6H0X (Choline)
OBL58JN025 (octanoic acid)
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Entry Date(s):
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Date Created: 20200921 Date Completed: 20201112 Latest Revision: 20201112
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Update Code:
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20240105
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PubMed Central ID:
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PMC7505472
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DOI:
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10.1371/journal.pone.0239493
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PMID:
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32956424
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Deep eutectic solvents (DESs) have received significant attention as potential extracting agents in recent years due to their favorable characteristics including low cost, easy preparation and environmentally safe starting materials. Experimentally screening for highly efficient DESs meeting various requirements for natural gas sweetening remains a challenging task. Thus, an extensive database of estimated Henry's law constants (Hi) and solubilities (xi) of CO2 in 170 different DESs at 25°C has been constructed using the COSMO-RS method to select potential DESs. Based on the COSMO-RS study, three DESs, namely tetrabutylammonium bromide (TBAB)+polyethylene glycol (PEG-8) (on a molar basis 1:4), TBAB+octanoic acid (OCT) (1:4), and methyltriphenylphosphonium bromide (MTPB)+PEG-8 (1:10), were chosen for further experimentation up to 2 bar at 25°C using a vapor-liquid equilibria (VLE) apparatus. Reliable thermophysical properties were determined experimentally, and a detailed equilibrium-based model was developed for one of the glycol-based DESs (i.e., TBAB+PEG-8 (1:4)). This information is an essential prerequisite for carrying out process simulations of natural gas sweetening plants using ASPEN PLUS. The simulation results for the proposed DES were compared to those of monoethylene glycol (MEG). Here, we find that the aqueous TBAB+PEG-8 (1:4) solvent shows ~60% lower total energy consumption and higher CO2 removal when compared to those using the MEG solvent.
Competing Interests: The authors have declared that no competing interests exist.
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