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Sager A, Rahman S, Imtiaz SA, Zhang Y, Alodhayb A, Georghiou PE, Al-Gawati M. Oxidative and Extractive Desulfurization of Fuel Oils Catalyzed by N-Carboxymethyl Pyridinium Acetate and N-Carboxyethyl Pyridinium Acetate Acidic Ionic Liquids: Experimental and Computational DFT Study. ACS OMEGA 2024; 9:23485-23498. [PMID: 38854558 PMCID: PMC11154728 DOI: 10.1021/acsomega.3c09975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 04/03/2024] [Accepted: 04/04/2024] [Indexed: 06/11/2024]
Abstract
This study reports on the synthesis, characterization, and application of two acidic ionic liquids, namely, N-carboxymethylpyridinium acetate ([HO2CCH2Py][CH3CO2] or AIL1) and N-carboxyethylpyridinium acetate ([HO2C(CH2)2Py][CH3CO2] or AIL2), as both extractants and catalysts for the oxidative and extractive desulfurization (OEDS) of model fuel oils containing heteroaromatic sulfur compounds. The structural properties of the synthesized acidic ionic liquids (ILs) were confirmed by 1H NMR, 13C NMR, and FT-IR spectroscopic analysis. To optimize the performance of the acidic AILs in the desulfurization process, the effects of different parameters, such as H2O2 dosage, reaction time, and temperatures, were investigated. The experimental results showed that AIL1 has exceptionally high desulfurization-extraction rates, with values of 99.8%, 97.8%, and 95.4%, for DBT, BT, and 4,6-DMDBT, respectively, under the optimum conditions established. Under the same conditions, the desulfurization-extraction rates using AIL2 reached 91.6%, 87.3%, and 82.4%, respectively, for DBT, 4, 6-DMDBT, and BT. Both ionic liquids can be recycled up to 9 times without a significant decrease in their sulfur removal efficiencies. Furthermore, density functional theory (DFT) calculations were conducted to evaluate the electronic interaction energies (ΔIE) between the AILs with each of the sulfur-containing compounds and their putative oxidized products. The computational findings strongly supported the experimental outcomes.
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Affiliation(s)
- Amani Sager
- Department
of Process Engineering, Memorial University
of Newfoundland, St John’s, Newfoundland and Labrador A1B3X5, Canada
| | - Shofiur Rahman
- Biological
and Environmental Sensing Research Unit, King Abdullah Institute for
Nanotechnology, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Syed A. Imtiaz
- Department
of Process Engineering, Memorial University
of Newfoundland, St John’s, Newfoundland and Labrador A1B3X5, Canada
| | - Yan Zhang
- Department
of Process Engineering, Memorial University
of Newfoundland, St John’s, Newfoundland and Labrador A1B3X5, Canada
| | - Abdullah Alodhayb
- Biological
and Environmental Sensing Research Unit, King Abdullah Institute for
Nanotechnology, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Paris E. Georghiou
- Department
of Chemistry, Memorial University of Newfoundland, St John’s, Newfoundland
and Labrador A1B3X5, Canada
| | - Mahmoud Al-Gawati
- Biological
and Environmental Sensing Research Unit, King Abdullah Institute for
Nanotechnology, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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2
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Gorbunov V, Buryak A, Oskolok K, Popov AG, Tarkhanova I. Supported Ionic Liquid Catalysts for the Oxidation of S- and N-Containing Compounds—The Effect of Bronsted Sites and Heteropolyacid Concentration. Catalysts 2023. [DOI: 10.3390/catal13040664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023] Open
Abstract
In this article, a series of effective catalysts based on betaine and sulfuric or phosphomolybdic acids was obtained. These compositions were characterized by various physicochemical methods and tested in the oxidation of sulfur- and nitrogenous-containing compounds by H2O2. An increase in the amount of heteropolyacid (HPA) leads to a non-linear change in acidity, and the degree of removal of sulfur-containing compounds correlates with the concentration of Bronsted acid sites on the surface. On the contrary, the degree of pyridine removal is determined primarily by the content of heteropolyacids in the catalyst.
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3
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Zhang H, Chen L, Chen Y, Wang Z. Removal of sulfide from fuels by ionic liquids: prospects for the future. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2023. [DOI: 10.1007/s43153-023-00304-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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4
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Hu Y, Huang D, Yan J, Miao Z, Yu L, Cai N, Fang Q, Zhang Q, Yan Y. Polyoxovanadate-Based Cyclomatrix Polyphosphazene Microspheres as Efficient Heterogeneous Catalysts for the Selective Oxidation and Desulfurization of Sulfides. Molecules 2022; 27:molecules27238560. [PMID: 36500654 PMCID: PMC9738953 DOI: 10.3390/molecules27238560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/21/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022] Open
Abstract
The [V6O13]2- cluster is successfully immobilized to the polymeric framework of cyclomatrix polyphosphazene via the facile precipitation polymerization between the phenol group symmetrically modified [V6O13]2- and hexachlorocyclotriphosphazene. The structure of the as-prepared polyoxometalate-containing polyphosphazene (HCCP-V) was characterized by FT-IR, XPS, TGA, BET, as well as SEM and zeta potential. The presence of a rigid polyoxometalate cluster not only supports the porous structure of the polymeric framework but also provides an improved catalytic oxidation property. By using H2O2 as an oxidant, the as-prepared HCCP-V exhibited improved catalytic oxidation activity toward MPS, DBT, and CEES, which can achieve as high as 99% conversion. More importantly, the immobilization of POMs in the network of cyclomatrix polyphosphazene also provides better recyclability and stability of the heterogeneous catalyst.
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Affiliation(s)
- Yinghui Hu
- Department of Chemistry, School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an 710129, China
| | - Diping Huang
- Department of Chemistry, School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an 710129, China
| | - Jing Yan
- Department of Chemistry, School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an 710129, China
- Correspondence: (J.Y.); (Y.Y.)
| | - Zhiliang Miao
- Department of Chemistry, School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an 710129, China
| | - Lize Yu
- Queen Mary University of London Engineering School, Northwestern Polytechnical University, Xi’an 710129, China
| | - Ningjing Cai
- Queen Mary University of London Engineering School, Northwestern Polytechnical University, Xi’an 710129, China
| | - Quanhai Fang
- Department of Chemistry, School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an 710129, China
| | - Qiuyu Zhang
- Department of Chemistry, School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an 710129, China
| | - Yi Yan
- Department of Chemistry, School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an 710129, China
- Correspondence: (J.Y.); (Y.Y.)
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5
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Maslova O, Senko O, Stepanov N, Gladchenko M, Gaydamaka S, Akopyan A, Eseva E, Anisimov A, Efremenko E. Sulfur containing mixed wastes in anaerobic processing by new immobilized synthetic consortia. BIORESOURCE TECHNOLOGY 2022; 362:127794. [PMID: 35987436 DOI: 10.1016/j.biortech.2022.127794] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/12/2022] [Accepted: 08/13/2022] [Indexed: 06/15/2023]
Abstract
Methanogenic biotransformation of unusual substrates (sulfur (S)-containing wastes: non-purified vacuum gas oil, straight-run gasoline fraction (Naphtha), gas condensate, and straight-run diesel fraction) coming from oil industry after their oxidative desulfurization was investigated. Nitrogen-containing wastes (hydrolysates of chicken manure and Chlorella vulgaris biomass) were added as co-substrates to mixture with oil industry wastes. The 100 % conversion of S-organic compounds to inorganic sulfide accumulated in the reaction liquid medium was achieved with simultaneous production of biogas containing high methane percent (greater than 70 %). Polishing of effluents from methane tank was carried out by denitrifying oxidation of ammonium (DEAMOX). The high process efficiency was due to use of original immobilized artificial consortia at the stage of methanogenesis and DEAMOX. This study reveals the real potential in the processing of very complex mixtures of large-scale wastes, usually inhibiting methanogenesis, by developing biocatalysts based on synthetic biology approaches.
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Affiliation(s)
- Olga Maslova
- Faculty of Chemistry, Lomonosov Moscow State University, 1/3 Leninskiye Gory, Moscow 119991, Russia
| | - Olga Senko
- Faculty of Chemistry, Lomonosov Moscow State University, 1/3 Leninskiye Gory, Moscow 119991, Russia
| | - Nikolay Stepanov
- Faculty of Chemistry, Lomonosov Moscow State University, 1/3 Leninskiye Gory, Moscow 119991, Russia
| | - Marina Gladchenko
- Faculty of Chemistry, Lomonosov Moscow State University, 1/3 Leninskiye Gory, Moscow 119991, Russia
| | - Sergey Gaydamaka
- Faculty of Chemistry, Lomonosov Moscow State University, 1/3 Leninskiye Gory, Moscow 119991, Russia
| | - Argam Akopyan
- Faculty of Chemistry, Lomonosov Moscow State University, 1/3 Leninskiye Gory, Moscow 119991, Russia
| | - Ekaterina Eseva
- Faculty of Chemistry, Lomonosov Moscow State University, 1/3 Leninskiye Gory, Moscow 119991, Russia
| | - Alexander Anisimov
- Faculty of Chemistry, Lomonosov Moscow State University, 1/3 Leninskiye Gory, Moscow 119991, Russia
| | - Elena Efremenko
- Faculty of Chemistry, Lomonosov Moscow State University, 1/3 Leninskiye Gory, Moscow 119991, Russia.
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6
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Designing polyoxometalate based hybrid catalysts for efficient removal of hazardous sulfur from fuel via heterogeneous oxidative desulfurization. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.09.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Facial synthesis of mesoporous {Mo132}/BiOCl for the efficient oxidative desulfurization of fuel. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Polyoxometalate Dicationic Ionic Liquids as Catalyst for Extractive Coupled Catalytic Oxidative Desulfurization. Catalysts 2021. [DOI: 10.3390/catal11030356] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Wettability is an important factor affecting the performance of catalytic oxidative desulfurization. In order to develop an efficient catalyst for the extractive coupled catalytic oxidative desulfurization (ECODS) of fuel oil by H2O2 and acetonitrile, a novel family of imidazole-based polyoxometalate dicationic ionic liquids (POM-DILs) [Cn(MIM)2]PW12O40 (n = 2, 4, 6) was synthesized by modifying phosphotungstic acid (H3PW12O40) with double imidazole ionic liquid. These kinds of catalysts have good dispersity in oil phase and H2O2, which is conducive to the deep desulfurization of fuel oil. The catalytic performance of the catalysts was studied under different conditions by removing aromatic sulfur compound dibenzothiophene (DBT) from model oil. Results showed that [C2(MIM)2]PW12O40 had excellent desulfurization efficiency, and more than 98% of DBT was removed under optimum conditions. In addition, it also exhibited good recyclability, and activity with no significant decline after seven reaction cycles. Meanwhile, dibenzothiophene sulfone (DBTO2), the only oxidation product of DBT, was confirmed by Gas Chromatography-Mass Spectrometry (GC-MS), and a possible mechanism of the ECODS process was proposed.
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9
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Liu F, Yu J, Qazi AB, Zhang L, Liu X. Metal-Based Ionic Liquids in Oxidative Desulfurization: A Critical Review. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:1419-1435. [PMID: 33433212 DOI: 10.1021/acs.est.0c05855] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Ionic liquids (ILs) as novel functional desulfurization materials have attracted increasing attentions. Metal-based ionic liquids (MILs) are classified into three types of metal chloride ILs, metal oxide ILs, and metal complex ILs based on the definition and basic structure of MILs in this critical review. On the basis of the properties of ILs such as structure designability, super dissolution performance, good thermal and chemical stability, nonflammability, and wide electrochemical window, MILs exhibit unique advantages on hydrophobicity, oxidation performance, and Brönsted-Lewis acidity. Therefore, MILs possess both the absorption and oxidation centers for the intramolecular adsorption and oxidation to improve the oxidative desulfurization (ODS) process. During the novel nonaqueous wet oxidative desulfurization process (Nasil), H2S can be oxidized into elemental sulfur with hydrophobic MILs, which can be regenerated by oxygen for recycle, to solve the problems of low sulfur capacity, low sulfur quality, and severe secondary pollution in the aqueous Lo-Cat wet oxidative desulfurization process. Another outstanding feature of MILs in ODS is biomimetic catalysis, which has the function of activating molecular oxygen and improving the oxidation performance. Metal oxide ILs and metal complex ILs are used in combination with hydrogen peroxide or oxygen with the existing water to generate a Fenton-like reaction to convert hydrophobic organic sulfur or SO2 into hydrophilic sulfoxide/sulfone or sulfur acid, respectively. However, the corrosion of Cl- to the equipment and emulsification phenomenon in the extraction process of sulfoxide/sulfone separation still need further study. Furthermore, the promising strategies to construct highly efficient and green desulfurization processes for large-scale applications are provided.
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Affiliation(s)
- Fen Liu
- Research Group of Environmental Catalysis and Separation Process, Beijing Key Laboratory of Energy Environmental Catalysis, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jiang Yu
- Research Group of Environmental Catalysis and Separation Process, Beijing Key Laboratory of Energy Environmental Catalysis, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Abdul Basit Qazi
- Research Group of Environmental Catalysis and Separation Process, Beijing Key Laboratory of Energy Environmental Catalysis, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Li Zhang
- Research Group of Environmental Catalysis and Separation Process, Beijing Key Laboratory of Energy Environmental Catalysis, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xueke Liu
- Research Group of Environmental Catalysis and Separation Process, Beijing Key Laboratory of Energy Environmental Catalysis, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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10
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Maslova O, Senko O, Stepanov N, Gladchenko M, Gaydamaka S, Akopyan A, Polikarpova P, Lysenko S, Anisimov A, Efremenko E. Formation and use of anaerobic consortia for the biotransformation of sulfur-containing extracts from pre-oxidized crude oil and oil fractions. BIORESOURCE TECHNOLOGY 2021; 319:124248. [PMID: 33254470 DOI: 10.1016/j.biortech.2020.124248] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/06/2020] [Accepted: 10/07/2020] [Indexed: 06/12/2023]
Abstract
A new solution for fossil raw materials desulfurization based on a hybrid chemical-biocatalytic scheme with biogas and sulfide production is proposed.·H2O2, formic acid and Na2MoO4 were used for petroleum or oil fractions pre-oxidation. Ethanol or dimethylformamide was used as extractant to remove sulfur-contained compounds from pre-oxidized straight-run diesel oil fraction, non-hydro treated vacuum gas oil, gas condensate or crude oil. Compositions of cells (anaerobic sludge, Desulfovibrio vulgaris, Clostridium acetobutilycum, Rhodococcus ruber, Rhodococcus erythropolis) were specially developed, immobilized in poly(vinyl alcohol) cryogel and used for methanogenic treatment of sulfur-containing extracts, diluted with phosphate buffer (pH 7.2) and hydrolysates of renewable raw materials. The sulfur coming into the reactor with the extracts was 100% converted to inorganic sulfide or cell biomass. The ratio of methane in the biogas was 68-76%. Bioluminescent express-methods were used to control the possible toxicity of media and metabolic activity of cells used as biocatalysts.
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Affiliation(s)
- Olga Maslova
- Faculty of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow 119991, Russia
| | - Olga Senko
- Faculty of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow 119991, Russia; Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow 119334, Kosygina st., 4, Russia
| | - Nikolay Stepanov
- Faculty of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow 119991, Russia; Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow 119334, Kosygina st., 4, Russia
| | - Marina Gladchenko
- Faculty of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow 119991, Russia; Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow 119334, Kosygina st., 4, Russia
| | - Sergey Gaydamaka
- Faculty of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow 119991, Russia; Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow 119334, Kosygina st., 4, Russia
| | - Argam Akopyan
- Faculty of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow 119991, Russia
| | - Polina Polikarpova
- Faculty of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow 119991, Russia
| | - Sergey Lysenko
- Faculty of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow 119991, Russia
| | - Alexander Anisimov
- Faculty of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow 119991, Russia
| | - Elena Efremenko
- Faculty of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow 119991, Russia; Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow 119334, Kosygina st., 4, Russia.
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11
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Wazeer I, Hadj-Kali MK, Al-Nashef IM. Utilization of Deep Eutectic Solvents to Reduce the Release of Hazardous Gases to the Atmosphere: A Critical Review. Molecules 2020; 26:E75. [PMID: 33375265 PMCID: PMC7795314 DOI: 10.3390/molecules26010075] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 12/20/2020] [Accepted: 12/23/2020] [Indexed: 11/16/2022] Open
Abstract
The release of certain gases to the atmosphere is controlled in many countries owing to their negative impact on the environment and human health. These gases include carbon dioxide (CO2), sulfur oxides (SOx), nitrogen oxides (NOx), hydrogen sulfide (H2S) and ammonia (NH3). Considering the major contribution of greenhouse gases to global warming and climate change, mitigation of these gases is one of the world's primary challenges. Nevertheless, the commercial processes used to capture these gases suffer from several drawbacks, including the use of volatile solvents, generation of hazardous byproducts, and high-energy demand. Research in green chemistry has resulted in the synthesis of potentially green solvents that are non-toxic, efficient, and environmentally friendly. Deep eutectic solvents (DESs) are novel solvents that upon wise choice of their constituents can be green and tunable with high biocompatibility, high degradability, and low cost. Consequently, the capture of toxic gases by DESs is promising and environmentally friendly and has attracted much attention during the last decade. Here, we review recent results on capture of these gases using different types of DESs. The effect of different parameters, such as chemical structure, molar ratio, temperature, and pressure, on capture efficiency is discussed.
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Affiliation(s)
- Irfan Wazeer
- Chemical Engineering Department, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia;
| | - Mohamed K. Hadj-Kali
- Chemical Engineering Department, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia;
| | - Inas M. Al-Nashef
- Department of Chemical Engineering, Masdar Institute, Khalifa University of Science and Technology, P.O. Box 54224, Abu Dhabi, UAE;
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12
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Wang L, Wang H, Wang Y. Research of desulfurization of dibenzothiophene with SO3H-functionalized morpholine heteropolyacid ionic liquid catalyst. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128779] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Butt HS, Lethesh KC, Fiksdahl A. Fuel oil desulfurization with dual functionalized imidazolium based ionic liquids. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116959] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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García-Álvarez J. Special Issue: "Advances in Homogeneous Catalysis". Molecules 2020; 25:molecules25071493. [PMID: 32218341 PMCID: PMC7181144 DOI: 10.3390/molecules25071493] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 03/17/2020] [Indexed: 11/16/2022] Open
Abstract
The use of enzymes, organo-catalysts or transition metal catalysts, as opposed to the employment of stoichiometric quantities of other traditional promoters of different organic synthetic processes (like, inorganic/organic bases, Brønsted acids, radicals, etc.) has allowed the discovery of a great number of new synthetic protocols within the toolbox of organic chemists. Moreover, the employment of the aforementioned catalysts in organic synthesis permits: (i) the diminution of the global energy demand and production cost; (ii) the enhancement of both the chemoselectivity and stereoselectivity of the global process; and (iii) the reduction of metal-, organo- or bio-catalyst consumption, thanks to the possible recycling of the catalysts; all these being synthetic concepts closely related with the principles of so-called Green Chemistry. Thus, this Special Issue on “Advances in Homogenous Catalysis” has been aimed to showcase a series of stimulating contributions from international experts within different sub-areas of catalysis in organic synthesis (ranging from metal-, organo-, or bio-catalyzed organic reactions).
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Affiliation(s)
- Joaquín García-Álvarez
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Departamento de Química Orgánica e Inorgánica, (IUQOEM), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad de Oviedo, E-33071 Oviedo, Spain
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