Journal of Ionic Liquids最新文献

{"title":"Phase equilibrium and kinetic studies of choline chloride-based deep eutectic solvents in water system for the inhibition of methane gas hydrate formation","authors":"Aliyu Adebayo Sulaimon ,&nbsp;Ali Qasim ,&nbsp;Mohamad Athif ,&nbsp;Asiah Nusaibah Masri ,&nbsp;Pearl Isabellah Murungi ,&nbsp;Aneel Jordan Atthi Tasan Singh","doi":"10.1016/j.jil.2024.100127","DOIUrl":"10.1016/j.jil.2024.100127","url":null,"abstract":"<div><div>Gas hydrates in subsea pipelines can lead to blockages, potentially causing explosions, and Deep Eutectic Solvents (DESs) offer an alternative to traditional chemical inhibitors or can minimize their usage when mixed with other chemicals. The thermodynamic hydrate inhibition (THI) and kinetic hydrate inhibition (KHI) behavior of two DESs i.e., choline chloride (ChCl) solution with glycerol and ethylene glycol are investigated using Micro Differential Scanning Calorimetry (μ-DSC). The DES-in-water systems were prepared by diluting the prepared DES in water. The difference between water-in-DES and DES-in-water systems is based on the extent of dilution. For DES-in-water systems, the water is in higher concentration and DES is a minor component. Whereas, water-in-DES systems involve adding a small amount of water to a DES. This can disrupt the hydrogen bonding network within the DES, leading to changes in its physical and chemical properties. The concentration of the DES solution was 10 and 15 wt% and the study was performed in-between the pressure range of 6.32–13.27 MPa while the Hydrate-Liquid-Vapor-Equilibrium (HLVE) temperature lies between the range of 281.4–290 .1K. Both compounds acted as thermodynamic and kinetic hydrate inhibitors for methane gas hydrates. HLVE was calculated for five pressure values. THI results show that the average depression temperature (ADT) of ChCl: Ethylene glycol is 1.47 K which is higher than the ADT achieved by ChCl: glycerol of 0.50 K at 10 wt%. Also, regarding kinetic hydrate inhibition, ChCl: Ethylene glycol showed better performance than ChCl: glycerol. The highest induction time attained by ChCl: Ethylene glycol is 1.5 h at 14.1 bar while for ChCl: glycerol, it is 1.2 h at the same pressure. Thermodynamic hydrate modeling for methane hydrates was also performed using the Dickens and Quinby-Hunt model. It showed an overall Mean Absolute error (MAE) value of 0.26 K while for the ChCl: Ethylene Glycol system, the MAE value is 0.32 K. The R² value was higher than 0.90 for both systems, proving the model's good fit. DESs have the potential to be applied in practical flow assurance applications due to their environmentally benign properties. The work is novel as it investigates the use of DESs for methane hydrate inhibition at high pressure along with the thermodynamic modeling.</div></div>","PeriodicalId":100794,"journal":{"name":"Journal of Ionic Liquids","volume":"5 1","pages":"Article 100127"},"PeriodicalIF":0.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing water circularity: Lactic acid-menthol deep eutectic solvent for efficient fats, oils and grease (FOG) removal and recovery from contaminated waters","authors":"Andrés S. Lagos ,&nbsp;Andrea C. Landázuri","doi":"10.1016/j.jil.2024.100126","DOIUrl":"10.1016/j.jil.2024.100126","url":null,"abstract":"<div><div>Water pollution, particularly the contamination of water sources by fats, oils, and grease (FOG), presents a significant environmental challenge exacerbated by climate change. While conventional water resource recovery facilities (WRRFs) address various contaminants, FOG treatment often remains indirect and suboptimal. This study introduces an innovative, environmentally benign approach utilizing deep eutectic solvents (DESs) for the targeted removal and recovery of FOG from contaminated waters via liquid-liquid extraction. A binary DES comprising menthol and lactic acid was synthesized and evaluated for its efficacy in extracting oleic acid, selected as a model fatty acid contaminant. The investigation employed a comprehensive factorial design to optimize key operational parameters, including the molar ratio of DES components, solvent-to-water ratio, contact time, initial contaminant concentration, stirring speed, and phase separation time. Results demonstrated exceptional removal efficiencies exceeding 95 % under optimized conditions, with peak performance approaching 99.5 %. Optimal parameters were identified as a 1:1 molar ratio of menthol to lactic acid, 1:10 DES-to-water ratio, 15-minute contact time, 300 mg L⁻¹ initial contaminant concentration, 500 RPM stirring speed, and 8-hour phase separation. This research establishes a foundation for the application of DESs in water decontamination processes, potentially revolutionizing FOG management and advancing water circularity initiatives. The study's findings align with multiple UN Sustainable Development Goals, including SDG 6 (Clean Water and Sanitation), SDG 14 (Life Below Water), and SDG 12 (Responsible Consumption and Production), offering a promising avenue for sustainable water treatment technologies.</div></div>","PeriodicalId":100794,"journal":{"name":"Journal of Ionic Liquids","volume":"4 2","pages":"Article 100126"},"PeriodicalIF":0.0,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142652250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Designing dicationic organic salts and ionic liquids exhibiting high fluorescence in the solid state","authors":"David King,&nbsp;Matthew C. Le,&nbsp;Yan P. Arnaiz,&nbsp;Seonghyeok L. Cox,&nbsp;Jakob Smith,&nbsp;Haesook Han,&nbsp;Pradip K. Bhowmik","doi":"10.1016/j.jil.2024.100125","DOIUrl":"10.1016/j.jil.2024.100125","url":null,"abstract":"<div><div>Dicationic ionic liquids (DILs) are emerging as a powerful, next-generation approach to designing applied ILs because of their superior physicochemical properties as well as their diverse complexity and tunability for task specific applications. DILs are scarce in the literature compared to monocationic ILs (MILs), and one of their main issues is their expected tendency to possess higher melting temperatures. A series of 1,4-bis[2-(4-pyridyl)ethenyl]benzene and 1,4-bis[2-(2-pyridyl)ethenyl]benzene quaternary salts (Q-BPEBs) with different counterions (bromide, tosylate, and triflimide) and carbon chain lengths (C₆, C₉, and C₁₂) have been synthesized for their potential as DILs with strong photoluminescent properties in the solid state. All Q-BPEB salts demonstrated robust thermal stabilities as determined by thermogravimetric analysis (TGA). The differential scanning calorimetry (DSC) thermograms for Q-BPEB tosylates and triflimides displayed crystalline polymorphisms before melting transitions as verified by polarizing optical microscopy (POM). The Q-BPEB bromide and tosylate salts all showed high melting points of above &gt;170 °C because of their dicationic rigid structures and strong ionic interactions of their anions. Once the Q-BPEB tosylates were exchanged with triflimide ions, <em>para-</em> isomers <strong>1aTf₂N, 1bTf₂N, 1bTfand ₂N,</strong>and <strong>1cTf₂N</strong> still possessed very high melting points (&gt;225 °C), however, the <em>ortho-</em> isomers <strong>2aTf₂N, 2bTf₂N</strong>, and <strong>2cTf₂N</strong> exhibited melting points lower than 100 °C, classifying them as DILs. Their photoluminescent properties were also studied in methanol with the emission values of λ_em = 476–482 nm for the <em>para-</em> isomers and those of λ_em = 448–453 nm for the <em>ortho-</em> isomers. In the solid state, the Q-BPEB salts exhibited strong fluorescence with quantum yields of up to 50 %. The relatively simple synthesis of these fluorescent dicationic organic salts and ILs are pertinent towards the scarcity of these materials in the literature and provide a deeper insight on the design of fluorescent ILs containing more than one charge center.</div></div>","PeriodicalId":100794,"journal":{"name":"Journal of Ionic Liquids","volume":"4 2","pages":"Article 100125"},"PeriodicalIF":0.0,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142652154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of modifiers on the stability of 1‑butyl‑3-methylimidazolium-based ionic liquids","authors":"Artyom V. Belesov,&nbsp;Daria A. Lvova,&nbsp;Ilya I. Pikovskoi,&nbsp;Mark S. Popov,&nbsp;Nikolay V. Ul'yanovskii,&nbsp;Dmitry S. Kosyakov","doi":"10.1016/j.jil.2024.100124","DOIUrl":"10.1016/j.jil.2024.100124","url":null,"abstract":"<div><div>The distinctive capabilities of 1‑butyl‑3-methylimidazolium (bmim) cation-based ionic liquids (ILs) to dissolve lignocellulosic biomass offer the potential for the development of novel green bioprocessing technologies based on their utilization as green solvents. The limited range of thermal stability of ILs necessitates the use of various co-solvents to maintain solubility. In the present study, an original approach to determine the degree of degradation of alkylimidazolium ILs was proposed, based on the application of gravimetric analysis method to determine the content of volatile degradation products and high-performance liquid chromatography-high-resolution mass spectrometry (HPLC<img>HRMS) to determine the total degree of degradation. The proposed approach, as well as the combination of HPLC<img>HRMS with gas chromatography-mass spectrometry (GC–MS), was employed to comprehensively characterize the impact of additives and impurities (water, dimethyl sulfoxide, hydrochloric and acetic acids, diethylamine) on the degradation of bmim acetate, chloride, and methyl sulfate during thermal treatment under typical biomass dissolution conditions (150 °C, 24 h). The presence of additives or impurities in the composition of ILs has been found to predominantly contribute to a decrease in the number of volatile compounds formed, while increasing the variety and relative content of non-volatile degradation products. The use of protic solvents and acids results in a decrease in the overall degree of degradation of ionic liquids and in the fraction of volatile compounds formed. This allows for the classification of binary mixtures based on these additives as \"green\" solvents at temperatures below 150 °C.</div></div>","PeriodicalId":100794,"journal":{"name":"Journal of Ionic Liquids","volume":"4 2","pages":"Article 100124"},"PeriodicalIF":0.0,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142652152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface-induced nano-generator utilizing a thermo-responsive smart window based on ionic liquid aqueous solution that exhibits lower critical solution temperature type phase separation","authors":"Kazuya Goda,&nbsp;Wataru Kataoka,&nbsp;Rina Araki","doi":"10.1016/j.jil.2024.100123","DOIUrl":"10.1016/j.jil.2024.100123","url":null,"abstract":"<div><div>We demonstrate a surface-induced nano-generator utilizing a thermo-responsive smart window based on ionic liquid aqueous solution that exhibits lower critical solution temperature (LCST) type phase separation. This smart window was fabricated by filling an aqueous solution of [<span><math><msup><mrow></mrow><mrow><mi>n</mi></mrow></msup></math></span>Bu<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span>P][CF<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span>COO] between the glass substrates coated with two different polymers: a polyimide with an alkyl side chain and an amorphous fluoropolymer. Below the LCST, the transmittance of the smart window was 87 %, nearly identical to that of a glass substrate. In contrast, when heated above the LCST, the [<span><math><msup><mrow></mrow><mrow><mi>n</mi></mrow></msup></math></span>Bu<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span>P][CF<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span>COO] aqueous solution undergoes phase separation, causing the [<span><math><msup><mrow></mrow><mrow><mi>n</mi></mrow></msup></math></span>Bu<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span>P] cations and [CF<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span>COO] anions to adsorb onto the polyimide with the alkyl side chain and the amorphous fluoropolymer facilitated by the surface pinning effect. This adsorption process results in the smart window generating electricity while transitioning to an opaque state. Therefore, the proposed smart window functions as an electricity-generating thermo-responsive device that can switch between transparent and opaque states in response to temperature changes.</div></div>","PeriodicalId":100794,"journal":{"name":"Journal of Ionic Liquids","volume":"4 2","pages":"Article 100123"},"PeriodicalIF":0.0,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142652153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and characterization of absorbents based on 1-hydroxypropyl, 3-methylimidazole derivatives and sulphonated poly (ether ether ketone)","authors":"Abdul Ghaffar Al Lafi ,&nbsp;Atef Arfan ,&nbsp;Jamal Alabdullah ,&nbsp;Dalal Alnaama ,&nbsp;Thnaa Allaf ,&nbsp;Tasneem Alnama ,&nbsp;Mazen Ibrahim","doi":"10.1016/j.jil.2024.100122","DOIUrl":"10.1016/j.jil.2024.100122","url":null,"abstract":"<div><div>Adsorption is a preferred decontamination process for the treatment of industrial effluents, and various materials have been developed for this purpose. In the present work, esters based on sulfonated poly(ether ketone)/ionic liquids were prepared and their structures were evaluated by Fourier transform Infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopies. Batch adsorption experiments were carried out on a mixed solution comprising Pb²⁺, Cu²⁺, Cd²⁺ and Zn²⁺ ions with concentration ranging from 4 to 10 μg L^-1. The adsorption affinity of the esters expressed as the equilibrium metal ions uptake capacity, q_e (mg g^-1) was in the order: Pb²⁺ (6.2), Cd²⁺ (5.1), Cu²⁺ (2.8) and Zn²⁺ (0.8). It was interesting to observe the low values of qe of all adsorbents for Zn²⁺, which is advantageous in the treatments of wastewater as Zn²⁺ present in high concentration and could reduce the ion exchange capacity of the adsorbent largely toward other metal ions pollutant. Esterification with ionic liquids open the opportunity to upcycle polymer wastes that can be sulfonated, such as polystyrene, PEEK and its cross-linked form.</div></div>","PeriodicalId":100794,"journal":{"name":"Journal of Ionic Liquids","volume":"4 2","pages":"Article 100122"},"PeriodicalIF":0.0,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of two imidazolium dicyanamide ionic solvents for extractive desulfurization of model fuels","authors":"Abubaker A. Mohammad,&nbsp;Adel S. AlJimaz,&nbsp;Khaled H.A.E. AlKhaldi,&nbsp;Adel F. Alenzi,&nbsp;Mohammad S. AlTuwaim","doi":"10.1016/j.jil.2024.100121","DOIUrl":"10.1016/j.jil.2024.100121","url":null,"abstract":"<div><div>The objective of this study is to assess the efficacy of two specific ionic liquids, namely 1-ethyl-3-methylimidazolium dicyanamide and 1-benzyl-3-methylimidazolium dicyanamide, as potential substitutes for conventional solvents in the removal of sulfur compounds from model fuels, a common challenge in the petroleum industry. This research examines the liquid-liquid equilibria (LLE) data of three different ternary systems to evaluate the ability of these ionic liquids to extract thiophene from aliphatic hydrocarbons, <em>n</em>-dodecane or <em>n</em>-hexadecane, simulating kerosene and diesel fuels, respectively. Liquid-liquid equilibrium measurements were conducted for these mixtures at a temperature of 313.15 K and atmospheric pressure to determine the solvents thiophene distribution coefficients and selectivities. Additionally, the impact of the length of the paraffin alkyl chain was examined. The experimental data were found to conform to the thermodynamic NRTL model, with an average root mean square deviation (rmsd) of 0.2165. Both ionic liquids efficiently extracted thiophene from <em>n</em>-dodecane and <em>n</em>-hexadecane, highlighting their potential for producing ultra-low sulfur fuels.</div></div>","PeriodicalId":100794,"journal":{"name":"Journal of Ionic Liquids","volume":"4 2","pages":"Article 100121"},"PeriodicalIF":0.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142560687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diethylene glycol-zinc chloride based deep eutectic solvent for green extraction of bixin compound","authors":"Winda Rahmalia ,&nbsp;Ratih Ratih ,&nbsp;Titin Anita Zaharah ,&nbsp;Anis Shofiyani ,&nbsp;Yohana Sutiknyawati Kusuma Dewi","doi":"10.1016/j.jil.2024.100120","DOIUrl":"10.1016/j.jil.2024.100120","url":null,"abstract":"<div><div>Deep eutectic solvents (DESs) are ionic liquid alternatives that replace volatile and flammable organic solvents. DESs are formed by hydrogen bond interaction between the hydrogen bond donor (HBD) and the hydrogen bond acceptor (HBA). We prepared DES using zinc chloride (ZnCl₂) as HBA and diethylene glycol (DEG) as HBD. Formed DES was applied to extract the bixin contained in annatto seeds. The homogenous liquid mixtures were analysed for their pH, viscosity, density, conductivity, thermal properties, and solubility in various solvents. Bixin extracted using DES was identified by thin-layer chromatography (TLC), UV–Vis spectrophotometer, Fourier Transform Infra-Red (FTIR), and Proton Nuclear Magnetic Resonance (¹H<img>NMR). The mixtures with a mole fraction of ZnCl₂ 0.1 (DES1), 0.2 (DES2), and 0.3 (DES3) are liquid at room temperature. The analysis results prove that bixin has been successfully extracted using DES, where DES1 was better for bixin extraction than DES2 and DES3, with extracted bixin levels of 32.42, 28.84, and 0.46 mg g^-1 by dry seeds mass, respectively. In this case, DES1, DES2, and DES3 could extract 62.17, 55.31, and 0.88 % of bixin from the entire total bixin contained in annatto seeds. The DES can be used for bixin extraction using a relatively simple method based on the results obtained.</div></div>","PeriodicalId":100794,"journal":{"name":"Journal of Ionic Liquids","volume":"4 2","pages":"Article 100120"},"PeriodicalIF":0.0,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Room-temperature [C2mim]OAc crystal","authors":"Ayumi Hachisu ,&nbsp;Akio Ohta ,&nbsp;Kenji Takahashi ,&nbsp;Kosuke Kuroda","doi":"10.1016/j.jil.2024.100119","DOIUrl":"10.1016/j.jil.2024.100119","url":null,"abstract":"<div><div>1-Ethyl-3-methylimidazolium acetate ([C₂mim]OAc) is the most commonly used cellulose-dissolving ionic liquid and has been extensively studied for biorefinery applications. Although [C₂mim]OAc had been considered to be a liquid, we here found [C₂mim]OAc crystals at room temperature (around 25 °C) with a melting point of 44 °C. A plausible reason for the crystallization is shearing stress. [C₂mim]OAc seed crystals led to the crystallization of liquid [C₂mim]OAc.</div></div>","PeriodicalId":100794,"journal":{"name":"Journal of Ionic Liquids","volume":"4 2","pages":"Article 100119"},"PeriodicalIF":0.0,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Second law of thermodynamics, heat transfer, and pumping power analyses of water and ionic liquid mixture based MXene nanofluids in a shell and helical coil heat exchanger","authors":"L.S. Sundar,&nbsp;Sérgio M.O. Tavares,&nbsp;António M.B. Pereira,&nbsp;Antonio C.M. Sousa","doi":"10.1016/j.jil.2024.100118","DOIUrl":"10.1016/j.jil.2024.100118","url":null,"abstract":"<div><div>Heat exchangers are extensively employed across diverse sectors for efficient thermal (heat)transfer between two fluids, specifically from a hot fluid to a cold fluid. Nanofluids are promising heat transfer fluids that exhibit exceptional thermal performance in heat exchangers. The present study examines the thermodynamic second law efficiency analysis of a shell and helical coil heat exchanger utilizing MXene/80:20% water+[MMIM][DMP] (mass percentage) based ionanofluids. An analytical investigation was conducted on the heat transfer coefficient, entropy generation rate, and exergy efficiency of a shell and helical coil heat exchanger, considering particle weight loadings from 0.2% to 1.0%, Reynolds numbers from 500 to 4300, and flow rates from 0.5 to 3.5 L/min. In the base fluid, at 1.0 wt.% and at a Reynolds number of 3598, the increase in heat transfer, Nusselt number, friction factor, pressure drop, effectiveness, and frictional entropy generation are 45.59%, 28.27%, 15.19%, 12.56%, 17.20%, and 16.21%, respectively. Concurrently, thermal entropy generation, and total exergy destruction were reduced by 46.23% and 20.08%, respectively. The second law (exergy) efficiency and thermal performance factor are improved by 34.04% and 1.384-times, respectively, at 1.0 wt.% and at a Reynolds number of 3598, compared to the base fluid. The data from the current study is corroborated by existing literature. New correlations were developed from the computed data points to estimate the Nusselt number and friction factor.</div></div>","PeriodicalId":100794,"journal":{"name":"Journal of Ionic Liquids","volume":"4 2","pages":"Article 100118"},"PeriodicalIF":0.0,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142531565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}