Article
Chemistry, Multidisciplinary
Yan Gao, Lilong Yang, Zhe Liu, Ruimin Gao, Guangfa Hu, Jianshe Zhao
Summary: A series of PIL-based POM salts were designed and synthesized, and supported catalysts were prepared for oxidative organic sulfide extraction in fuel oils. The supported catalyst showed better performance with maximum sulfur removal efficiencies up to 98.32% to 99.98%. The catalyst can be easily recovered and reused without significant activity decrease.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Energy & Fuels
Hang Xu, Jun Zhang, Dandan Zhang, Yafei Guo, Fengmin Wu
Summary: The silica gel supported ionic liquid ([Bmim]CoCl3) catalyst, prepared using a sol-gel method and coupled with [Bmim]BF4 and oxone, showed high desulfurization efficiency. The catalyst exhibited good recyclability and effective desulfurization performance on three sulfur-containing substances with high sulfur content. The desulfurization mechanism was speculated based on the GC-MS results.
Review
Chemistry, Multidisciplinary
N. Evelin Paucar, Peyton Kiggins, Bryson Blad, Karl De Jesus, Farjana Afrin, Srinath Pashikanti, Kavita Sharma
Summary: Ionic liquids have been developed as an effective method for extracting sulfur and nitrogen compounds from fuels, showing higher efficiency and selectivity compared to traditional processes. Despite limitations such as environmental biodegradation and bioaccumulation, they are still considered a promising technology for desulfurization and denitrogenation.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Review
Energy & Fuels
Amir Aghaei, Mohammad Amin Sobati
Summary: This study investigates various aspects of the extractive desulfurization process using ILs and DESs, including the physical and chemical properties of solvents, the structure of solvents, the role of oxidants and catalysts in the process, and experimental conditions. Regeneration issues related to ILs and DESs compared to traditional organic solvents are also discussed, along with challenges and associated problems in using ILs and DESs in the EDS process. Research gaps and future research directions are highlighted for further studies.
Article
Energy & Fuels
Subhajit Kundu, Debarati Mitra
Summary: A novel diesel desulfurization process at ambient temperature was developed without using catalyst, which involved solvent extraction using an ionic liquid to eliminate sulfur compounds, with the synthesized ionic liquid showing a high biodegradability rate.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2021)
Article
Engineering, Chemical
Kui Qiu, Zhihao Liu, Yu Dong, Luwei Liu, Weijun Li, Shihao Niu, Zhaobo Jin
Summary: An iron/copper bimetallic catalytic oxidation desulfurization system was developed by adding NMP and CuCl2 to an iron-based ionic liquid. The addition of NMP and water reduced the acidity and viscosity of the system and improved the gas-liquid mass transfer efficiency. The introduction of CuCl2 increased the oxidation potential and enabled Fe3+ to efficiently catalyze the oxidation of H2S.
CHEMICAL ENGINEERING & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Ahmad S. Darwish, Farah Abu Hatab, Tarek Lemaoui, Omar A. Z. Ibrahim, Ghaiath Almustafa, Botagoz Zhuman, Samah E. E. Warrag, Mohamed K. Hadj-Kali, Yacine Benguerba, Inas M. Alnashef
Summary: Eutectic solvents have been studied for fuel purification, with this work focusing on the extraction of multiple aromatics from n-decane using a salt-acid-based ES. Experimental and theoretical studies showed different extraction mechanisms for different impurities, with full recovery achieved for pyrrole and quinoline after 2 stages of extraction and lower efficiencies for thiophene and toluene.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Environmental
Yan Gao, Liangting Cheng, Ruimin Gao, Guangfa Hu, Jianshe Zhao
Summary: The study involves designing and preparing new polyionic liquid catalyst based on polyoxometalates, which shows high desulfurization activity. Additionally, supported catalysts were synthesized by loading polyoxometalate derivatives on the surface of graphene oxide, demonstrating excellent activity and recyclability in extraction-oxidation desulfurization.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Energy & Fuels
Zenglin Jiang, Xiaohong Wang, Hao Deng, Jia Zhao, Yugang Li
Summary: This study selected 16 environmentally friendly and easily degradable ionic liquids for fuel desulfurization research. Through molecular mechanism studies and experiments, it was found that [C2COOCH3ImC6H13][NTF2] ILs exhibited high desulfurization efficiency.
JOURNAL OF THE ENERGY INSTITUTE
(2024)
Article
Energy & Fuels
Guojia Yu, Xiaojia Wu, Lu Wei, Zhiyong Zhou, Wei Liu, Fan Zhang, Yixin Qu, Zhongqi Ren
Summary: Ionic liquids (ILs) are efficient green solvents for thiophene sulfides removal. In this study, several acidic ILs were synthesized and [NFM][TFA] showed excellent desulfurization efficiency. Through a proposed mechanism, [NFM][TFA] reacted with H2O2 to oxidize DBT in IL phase to corresponding sulfones.
Article
Chemistry, Multidisciplinary
Argam Akopyan, Polina D. Polikarpova, Nina Arzyaeva, Alexander Anisimov, Olga Maslova, Olga Senko, Elena N. Efremenko
Summary: This study investigated the effect of the hydrophobicity of mesoporous silicate SBA-15 on the catalytic activity and service life in the peroxide oxidation of sulfur-containing compounds. The immobilization of molybdate anion on SBA-15 support resulted in lower reaction temperature and longer catalyst lifespan. The hydrophobic catalyst showed insensitivity to initial sulfur content and hydrogen peroxide amount, retaining activity for at least six oxidation cycles.
Article
Chemistry, Multidisciplinary
Qinghua Liu, Chengmin Gui, Guoxuan Li, Zhigang Lei
Summary: In order to improve the quality of fluid catalytic cracking (FCC) diesel, promising neoteric solvents called ionic liquids (ILs) were used to extract certain compounds from FCC model oil. The selection of the most suitable extraction solvent was based on various factors including thermodynamic and physical properties. Experimental data and theoretical calculations were used to understand the extraction mechanism and differences in efficiency for different compounds.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Yan Gao, Diana Julia, Dinis F. Silva, Baltazar de Castro, Jianshe Zhao, Salete S. Balula
Summary: The use of peroxopolyoxometalates as oxidative catalysts in desulfurization systems has led to improved efficiency and sustainability. Specifically, Venturello peroxotungstate has shown superior performance in desulfurizing model diesel compared to analogues, with the ability to be reused for multiple cycles. This simple and cost-effective process allows for the reuse of catalyst and solvent without the need for additional techniques.
MOLECULAR CATALYSIS
(2021)
Article
Engineering, Environmental
Muhammad Nisar, Franciele L. Bernard, Evandro Duarte, V. V. Chaban, Sandra Einloft
Summary: The study developed an effective solvent-free CO2 adsorbent by encapsulating IL with metal oxides in polysulfone microcapsules, leading to enhanced CO2 sorption capacity for industrial applications.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Andres-Felipe Villamizar-Mogotocoro, Sandra-Milena Bonilla-Castaneda, Vladimir V. Kouznetsov
Summary: An ecofriendly and efficient method for the synthesis of new pharmacologically active 6-arylphenanthridines has been developed using inexpensive starting materials and consecutive reactions under microwave assistance and a catalytic system, resulting in moderate to excellent yields.
Article
Engineering, Chemical
Anuj Kumar, Pranay Mohadikar, Fiona Mary Anthony, Diwakar Z. Shende, Kailas L. Wasewar, Asawari Ninawe, Danish Beg
Summary: Glutaric acid is an important chemical compound that can be used for the manufacturing of various chemical products. Research shows that reactive separation is a simple, cost-effective, and environmentally friendly process for the recovery of glutaric acid.
INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING
(2022)
Article
Engineering, Chemical
Shitanshu Pandey, Kailas S. Wasewar, Dipaloy Datta, Sushil Kumar
Summary: This study investigates the experimental and theoretical perspectives of reactive extraction of gallic acid (GA) from aqueous solutions using tri-n-butyl phosphate (TBP) and tri-n-octylamine (TOA) as extractants dissolved in nontoxic natural oils, namely, rice bran oil, sunflower oil, and soybean oil. The extractability of the solvents is observed to be in the order of sunflower oil > rice bran oil > soybean oil and rice bran oil > sunflower oil > soybean oil with TOA and TBP, respectively. The theoretical insights of the reaction mechanisms for the extraction of GA are estimated through overall equilibrium constants (K-E), stoichiometric coefficients (m), individual equilibrium constants (K-11, K-12, K-21), and concentrations (C-11, C-12, and C-21) of various complexes formed between the extractant and the acid.
CHEMICAL ENGINEERING & TECHNOLOGY
(2022)
Article
Environmental Sciences
Anuj Kumar, Anjali Ingle, Diwakar Z. Shende, Kailas L. Wasewar
Summary: This study investigates the separation of levulinic acid using reactive extraction, validating its feasibility through experimental results and modeling. The use of a mixer settler reactor scheme for separation design parameters is also discussed. The findings of this study are helpful in recovering valuable chemicals in industrial processes and reducing environmental impacts.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Biotechnology & Applied Microbiology
Kalyani A. Motghare, Diwakar Z. Shende, Kailas L. Wasewar
Summary: This study investigates the extraction of butanol from aqueous media using ionic liquids and other solvents, finding variations in extraction efficiency and distribution coefficients among different solvents, which could be beneficial for improving butanol extraction efficiency.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2022)
Review
Environmental Sciences
Dhruti Sundar Pattanayak, Dharm Pal, Jyoti Mishra, Chandrakant Thakur, Kailas L. Wasewar
Summary: Tetracyclines (TCs) antibiotics are widely used in human and veterinary medicines, but their active residues released into the environment pose risks to ecosystems and human health. Photodegradation using graphitic carbon nitride (g-C3N4) as a photocatalyst provides a promising solution for complete antibiotic degradation. Doping g-C3N4 with elements improves its activity, broadens its light-responsive range, and reduces electron-hole recombination. This review discusses the design and efficiency of doped g-C3N4 for TCs degradation in aquatic environments.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Anuradha Nanewar Joshi, Anil Kumar Chandrakar, Kailas L. Wasewar
Summary: This study aims to retrieve 4-hydroxybenzoic acid from aqueous solution through physical extraction. The results showed that both natural oils and chemicals can be used as extraction solvents, with natural oils showing better extraction efficiency.
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2022)
Article
Biotechnology & Applied Microbiology
Anuj Kumar, Diwakar Z. Shende, Kailas L. Wasewar
Summary: This study utilizes a green solvent, sunflower oil, trioctylamine, and tri-n-butyl phosphate to separate levulinic acid, with important parameters obtained from experimental results. A multistage extraction design can achieve a recovery rate of nearly 100% for levulinic acid.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Anuj Kumar, Diwakar Z. Shende, K. L. Wasewar
Summary: This study is significant for the recovery of levulinic acid as a low-cost fuel additive through the separation process from wastewater using various solvents.
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Kalyani Ashok Motghare, Diwakar Zaparu Shende, Kailas Lachchhuram Wasewar
Summary: Depletion of conventional resources has led to the development of alternative energy sources. This paper explores the separation of bio-butanol from aqueous media using hydrophobic ionic liquids, and finds that THTDP [NTF2] ionic liquid has the highest separation efficiency.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Fiona Mary Antony, Kailas L. Wasewar
Summary: Due to their superior characteristics, ionic liquids (IL) have been used as a more environmentally friendly alternative for extracting protocatechuic acid (PCA) from industrial waste streams and fermentation. The study found that Imidazolium-based IL, specifically 1-butyl-3-methylimidazolium octyl sulfate and 1-Hexyl-3-methylimidazolium hexafluorophosphate, had an efficiency of 87% in separating PCA from an aqueous stream at 10% IL concentration and 10 mmol L-1 PCA concentration. The research also determined various parameters that are useful for designing an industrial separation unit.
CHEMICAL ENGINEERING COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Santosh K. Nath, Anuj Kumar, Fiona M. Antony, Diwakar Z. Shende, Kailas L. Wasewar
Summary: In this study, trioctylamine was used as an extractant to extract aspartic acid from aqueous solutions using different solvents, including 1-octanol, 1-decanol, and cyclohexane. The results showed that the maximum extraction efficiencies were 86.25%, 67.25%, and 58.50% with 1-octanol, 1-decanol, and cyclohexane by trioctylamine, respectively.
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Shraddha Wadatkar, Diwakar Z. Shende, Kailas L. Wasewar
Summary: The aim of this study was to use fly ash cenosphere to remove methylene blue from water streams. Nickel oxide, a semiconductor with excellent chemical stability and high catalytic activity, was used as an adsorbent material. Chitosan cenosphere buoyant composite coated with NiO was synthesized using hydrothermal grafting reaction. Batch adsorption experiments were conducted to investigate the adsorptive capabilities of the composite. The results showed that the composite exhibited enhanced degradation of methylene blue.
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2023)
Article
Biochemistry & Molecular Biology
Fiona Mary Antony, Kailas L. Wasewar
Summary: In the current scenario, the chemical industry is seeking sustainable alternatives for manufacturing chemicals, fuels, and bioplastics due to environmental degradation, global climate change, and the depletion of petroleum feedstock. Biorefining processes that integrate biomass conversion and microbial fermentation are preferred approaches to create value-added compounds. Effective separation and recovery procedures are essential to minimize costs and equipment size, addressing the challenges of dilute concentrations of final products and the demand for high purity goods.
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2023)
Article
Engineering, Chemical
Kanti Kumar Athankar, Kailas L. Wasewar
Summary: The separation of carboxylic acids from downstream processes is a major challenge in the chemical industry due to its high cost. In this study, the extraction of acrylic acid from aqueous solution using tri-n-butyl phosphate dissolved in organic diluents was investigated. Benzene showed the highest extraction efficacy and distribution coefficient, reaching 88.60% and 7.772, respectively, at lower acrylic acid concentration and higher tri-n-butyl phosphate concentration. The coextraction of water and the diffusion of acrylic acid were also discussed. The number of theoretical stages and minimum solvent-to-feed ratio were determined for the design of a continuous extraction column.
CHEMICAL ENGINEERING & TECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Shourabh Singh Raghuwanshi, Kailas L. Wasewar, Kanti Kumar Athankar
Summary: This study focused on extracting itaconic acid using reactive tri-n-butyl phosphate dissolved in natural, non-toxic diluents like sunflower oil, rice bran oil, and sesame oil. The results showed that sunflower oil had the highest extraction efficiency and distribution coefficient for itaconic acid.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
