Article
Engineering, Chemical
Neshat Rahimpour, Hossein Bahmanyar, Alireza Hemmati, Mehdi Asadollahzadeh
Summary: This study designed and investigated the pulsed Tenova column, and validated the predicting method of hydrodynamic parameters such as holdup through experiments. It was found that dimensional analysis method can provide more accurate predictions, while other experimental relations showed larger errors. The critical values of pulsation intensity were also identified, and an operating pulsation intensity range between these two critical values was recommended.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Polymer Science
Ramesh Kanthasamy, Mohammed Algarni, Leo Choe Peng, Nur Ain Zakaria, Mohammed Zwawi
Summary: In this study, hydrophilic silica nanoparticles and hydrophobic silane were used to modify the surface of polyurethane (PU) paint to improve its fouling properties. The addition of silica nanoparticles followed by silane modification resulted in minimal changes in surface morphology and water contact angle. However, when perfluorooctyltriethoxy silane was used to modify the PU coating blended with silica, the fouled area significantly increased compared to the unmodified PU coating. On the other hand, blending silica nanoparticles without silane modification reduced the fouled area. Additionally, coating the PU coatings with silica nanoparticles dispersed in different solvents using the dual-layer coating method improved the surface roughness and hydrophilicity. The use of paint thinner as a solvent resulted in a superhydrophobic and antifouling surface.
Article
Multidisciplinary Sciences
Farnaz Jafari, Javad Saien, Alimorad Rashidi
Summary: Simultaneous use of carbon quantum dot (CQD) nanofluids and pulsed electric fields can significantly enhance mass transfer in liquid-liquid extraction. The study explores the effects of CQD concentrations, electric field frequencies, and strength on the mass transfer efficiency. The results show that the electro-induced motion of CQDs under pulsed electric fields contributes to the mass transfer enhancements. A correlation between enhancement factor and dimensionless variables was developed for modeling purposes.
SCIENTIFIC REPORTS
(2022)
Article
Thermodynamics
Aarsee Dhindsa, Amit Sobti, R. K. Wanchoo, Amrit Pal Toor
Summary: This study investigates the impact of nanofluids on mass transfer properties during liquid-liquid extraction and finds that nanofluids significantly enhance mass transfer coefficient. The enhancement is attributed to Brownian motion and Marangoni effect. A new method for correlating hydrodynamics and mass transfer properties is proposed.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Energy & Fuels
Piriyanth Sakthithasan, Nils Gerdes, Maximilian Venhuis, Norbert Kockmann
Summary: Among thermal separation methods, solvent extraction is highly efficient due to its high interfacial area and good mixing. The miniaturized stirred-pulsed extraction column shows promise for laboratory-scale extraction with counter-current flow and high separation performance. This study investigates the influence of asymmetric pulsation patterns on flooding, hold-up, and separation performance, demonstrating the potential for process intensification with solvent extraction.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Engineering, Chemical
Elmira Katoozi, Zahra Anari
Summary: The study investigated the efficiency of zinc(II) extraction with di(2-ethylhexyl) phosphoric acid (D2EHPA) diluted in kerosene in batch and continuous extraction columns. Operational variables were optimized in lab-scale batch setup and constant values were used in the pilot-scale continuous setup. The study found that despite lower extraction efficiency in the continuous mode, the setups with considerably lower required organic to aqueous ratio are more favorable.
MINERALS ENGINEERING
(2021)
Article
Energy & Fuels
Reza Khoramian, Riyaz Kharrat, Saeed Golshokooh
Summary: A novel nanofluid has been developed by conjugating an anionic surfactant to graphene oxide nanosheets, which shows improved stability and applicability. The nanofluid has high salinity, alters oil wettability, and reduces interfacial tension, leading to higher oil recovery.
Article
Energy & Fuels
Yan Xin, Zhaomin Li, Yongpeng Sun, Mengyuan Zhang, Binfei Li, Caili Dai
Summary: In this study, the effects of different factors on flow resistance reduction performance of ultralow permeability reservoirs were investigated. The results showed that the nanofluid, with specific matching coefficient, content, injection volume, and adsorption time, can effectively reduce water flow resistance. The nanoparticle adsorption on the core pore surface resulted in a decrease in surface roughness, change in surface hydrophobicity, and a hydrophobic sliding effect, which effectively reduced water flow resistance.
Article
Thermodynamics
Akbar Maleki, Arman Haghighi, Misagh Irandoost Shahrestani, Zahra Abdelmalek
Summary: In this study, GMDH and multilayer perceptron artificial neural networks were used to determine the thermal conductivity of nanofluids containing silica particles and different base fluids. The models showed good agreement with experimental results, with R2 values reaching up to 0.9998.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Engineering, Chemical
Sarmad Majeed Yaseen, Suhaib S. Salih, Mohammed Kadhom, Harith N. Mohammed
Summary: This study investigates the effect of adding SiO2 nanoparticles to phenol solvent on its recovery from wastewater using liquid-liquid extraction. The results show that dispersing SiO2 nanoparticles in the nanofluid achieves approximately 80% of the initial concentration. Moreover, adding nanoparticles improves the extraction efficiency, extraction flux, and stripping efficiency. Among the studied nanoparticle concentrations, 0.02 wt% shows the highest values of these parameters.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Physical
Mirhasan Hosseini, Rossen Sedev, Mujahid Ali, Muhammad Ali, Jalal Fahimpour, Alireza Keshavarz, Stefan Iglauer
Summary: This study investigates the wettability alteration of Indiana limestone for hydrogen geological storage. The results show that the rock exhibits increased H2-wetness after exposure to organic acids under reservoir conditions, but this hydrophobicity significantly decreases after treatment with nanofluids. This wettability reversal may enhance H2 storage capacity and containment security.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Chemical
Alex Fells, Andrea De Santis, Marco Colombo, Daniel W. Theobald, Michael Fairweather, Frans Muller, Bruce Hanson
Summary: In this study, the GEneralised Multifluid Modelling Approach (GEMMA) was used to simulate liquid-liquid extraction in a Rotating Disc Column (RDC) and a Pulsed Sieve-plate Extraction Column (PSEC). A mass transfer modelling methodology was developed to predict overall mass transfer by coupling computational fluid dynamics predictions with mass transfer correlations. The simulation results agreed with experimental observations, demonstrating the accuracy of the proposed modelling method for complex multiphase flows.
Article
Engineering, Chemical
Anthony Hutin, Marcio S. Carvalho
Summary: Direct sonication with probe is an efficient method to disperse nanoparticles and obtain a stable nanofluid, but may lead to tip erosion and contamination. Centrifugation and/or dilution can decrease the influence of contamination particles on nanofluid characterization.
Article
Engineering, Chemical
Junxin Chen, Caijin Zhou, Bingqi Xie, Jisong Zhang
Summary: In this study, a novel design of a tube-in-tube microextractor relying on a poly tetra fluoroethylene membrane to construct a stable interface was proposed for continuous counter-current extraction. The extraction kinetics and efficiency were measured for different systems and flow rate ratios, and a mathematical model was established to predict the results. The experimental and predicted results showed good agreement, demonstrating the applicability and effectiveness of the proposed microextractor.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Environmental
Mohini Yadav, Vagish Dwibedi, Swati Sharma, Nancy George
Summary: Silica nanoparticles (SiNPs) have emerged as important nanomaterials with diverse applications. Due to their variable pore size, high surface area, and low toxicity, SiNPs are attractive for use in biomedicine and environmental remediation. This review discusses the use of agricultural waste as a precursor for SiNPs synthesis and explores the mechanism behind biological extraction of SiNPs from agro-waste. Additionally, various applications of SiNPs in environment monitoring and bioremediation are discussed, along with challenges and research priorities in producing nano-sized silica from agro-waste.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Younes Amini, Javad Karimi-Sabet, Mohsen Nasr Esfahany, Masoud Haghshenasfard, Abolfazl Dastbaz
SEPARATION SCIENCE AND TECHNOLOGY
(2019)
Review
Chemistry, Multidisciplinary
Younes Amini, Mohsen Nasr Esfahany
SEPARATION SCIENCE AND TECHNOLOGY
(2019)
Article
Engineering, Environmental
Milad Kadivarian, Ali A. Dadkhah, Mohsen Nasr Esfahany
WATER SCIENCE AND TECHNOLOGY
(2019)
Article
Energy & Fuels
Samira Mohammadkhani, Hamidreza Shahverdi, Sidsel Marie Nielsen, Mohsen Nasr Esfahany, Alexander Shapiro
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2019)
Article
Energy & Fuels
Seyyed Hamid Esmaeili-Faraj, Mohsen Nasr Esfahany, Mohammad Hossein Karimi Darvanjooghi
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2019)
Article
Thermodynamics
Morteza Bayareh, Mohsen Nasr Esfahany, Nader Afshar, Mohsen Bastegani
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2020)
Article
Chemistry, Physical
Samira Mohammadkhani, Hamidreza Shahverdi, Kirsten Inga Kling, Karen Louise Feilberg, Mohsen Nasr Esfahany
JOURNAL OF MOLECULAR LIQUIDS
(2020)
Article
Engineering, Chemical
Omid Babaie, Mohsen Nasr Esfahany
SEPARATION AND PURIFICATION TECHNOLOGY
(2020)
Article
Engineering, Chemical
Omid Babaie, Mohsen Nasr Esfahany
SEPARATION AND PURIFICATION TECHNOLOGY
(2020)
Article
Thermodynamics
Seyedeh-Saba Ashrafmansouri, Sona Raeissi
Summary: The study extended a group contribution procedure based on the SAFT-gamma equation to cover new families of imidazolium-based ionic liquids (ILs), with improved predictions through fitting density data and optimizing group combinations. Results showed reliable predictions and accuracy in estimating IL properties.
FLUID PHASE EQUILIBRIA
(2021)
Article
Thermodynamics
Seyedeh-Saba Ashrafmansouri
Summary: The study used the SAFT-gamma technique to estimate the density and thermodynamic properties of several ILs, showing that this method can accurately predict the thermophysical properties of these ILs.
FLUID PHASE EQUILIBRIA
(2021)
Article
Engineering, Chemical
Mohammad Hasan Sadeghi, Mohsen Nasr Esfahany
Summary: The current research aimed to develop a safer and more environmentally friendly sulfate process for producing titanium oxide. This process involves a two-step leaching scheme using different reactors for chemical reaction and particle activation, resulting in reduced waste acid and gypsum production and economic profit.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Polymer Science
Tahereh Zomorrodi Soofiani, Mohsen Nasr Esfahany, Maria Graca Rasteiro, Paula Ferreira
Summary: A population balance model for poly(vinyl chloride) microsuspension process was developed to predict drop size distributions, with factors such as pressure, number of passes, dispersed phase volume fraction, and emulsifier concentration affecting the anticipated distribution. Viscous forces and inertial forces play important roles in determining the drop size distribution, with emulsifier concentration impacting the ratio of D90/D10.
IRANIAN POLYMER JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Omid Babaie, Mohsen Nasr Esfahany
Summary: A new hybrid RDWC-pervaporation (PV)-vapor permeation (VP) process equipped with a solar heating system was designed and optimized to produce ETBE. The proposed process significantly reduced total annual cost (TAC) and CO2 emissions by utilizing solar energy and eliminating the need for hot utility.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Materials Science, Composites
Abdulkarim Alsikh, Afsaneh Valipouri, Mohsen Nasr Esfahany, Seyed Abdolkarim Hosseini Ravandi
Summary: This article investigates the dynamic performance of an advanced multifunctional textile under solar radiation. The influence of fabric properties and optical properties on evaporation performance is discussed. The results show that the proposed multi-layer structure has excellent potential in solar absorption efficiency and evaporation performance.
POLYMER COMPOSITES
(2023)
Article
Engineering, Chemical
Yunfei Yu, Xue Yang, Chenchen Zhang, Jie Chen, Wei Lin, Jianqiang Meng
Summary: This study reports an environmentally friendly and simple approach for preparing double-network (DN) ion gel membranes with high strength and excellent gas separation performance. By optimizing crosslinking density, mass ratio, and the type and content of free ionic liquid, the mechanical and gas separation properties of the DN membrane are improved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Si-qi Jiang, Qiang Gao, Xi-guang Li, Chao-zhu Deng, Jun Qiu, Xiang-nan Zhu
Summary: A dual-strengthening pretreatment method is proposed to remove PVDF more efficiently and enhance the leaching of LiCoO2. Experimental results show that dual-strengthening pretreatment can effectively remove PVDF and significantly improve the leaching efficiency compared to single pretreatment methods.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zengchi Hu, Xiaoyu Wang, Xiaohui Zhang, Xue Li, Jiangbin Xia
Summary: The rapid fabrication of high-performance composite membranes based on CMPs using simple and low-cost methods is challenging. In this study, three CMPs-based composite membranes were rapidly fabricated with adjustable size using unidirectional diffusion synthesis. The microstructural design enhanced the rejection rates of the membranes and they showed strong hydrolytic resistance, thermal stability, and acid-base resistance. Electrostatic adsorption and the adjustable microstructures significantly varied the repellence of the membranes to different charged molecules.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Farzaneh Rouhani, Matineh Ayedi, Nasser Safari
Summary: Introducing defects into porous metal-organic frameworks is important for improving their adsorption performance. Quasi-MOFs, an underutilized variant of large-scale, fundamentally deficient MOFs, have been found to have substantial amounts of unsaturated metal sites to offset the drawbacks of MOFs. In this study, a quasi-MOF was produced using a water-stable MOF and demonstrated significantly improved phosphate adsorption capability due to the presence of defect sites.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Valentin Reungoat, Morad Chadni, Louis M. M. Mouterde, Fanny Brunissen, Florent Allais, Helene Ducatel, Irina Ioannou
Summary: This study focuses on the recovery of sinapic acid using liquid-liquid extraction assisted by a hollow fiber membrane contactor from an aqueous feed obtained through the hydrolysis of mustard bran. The screening of solvents of different chemical nature showed that all tested solvents had an extraction efficiency of more than 80% for pH < 5. Four solvents were selected for use in the hollow fiber membrane contactor, and the volatile solvents showed higher mass transfer coefficients compared to non-volatile solvents. The extraction efficiency was intensified by increasing the initial concentration of sinapic acid and the feed-to-solvent ratio. CPME was found to have optimal recovery efficiency at a phase ratio of 8:1, yielding 0.9 g of sinapic acid per liter of CPME used.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Takahiro Sakamoto, Takafumi Hanada, Hayate Sato, Mayu Kamisono, Masahiro Goto
Summary: The emergence of the battery society has led to a high demand for battery metals, resulting in a strain on their supply. This study introduces a novel technique using a hydrophobic deep eutectic solvent (DES) for leaching and recovering battery metals from low-grade nickel laterite ores. The DES enables selective leaching and recovery of the metals, offering a promising pathway for the extraction of critical battery metals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Rongrong He, Jiarui Chen, Chunyao Zhang, Dan Lu, Lin Zhang, Tao He
Summary: Researcher has developed a method to quantify the charge density in nanofiltration (NF) membrane separation layer and applied it in NF membranes that can separate Mg2+ and Li+. The results showed that overcompensated amine groups played a major role, and there was a linear relationship between charge density and coating bi-layers or PAH layers.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zhijian Zhang, Min Chen, Zhe Lin, Zhichao Yang, Yafeng Du, Zhihui Chen, Zhenhao Yang, Kongyin Zhao, Ligang Lin
Summary: Membrane technology plays an important role in molecular/ion separation processes, but faces challenges such as membrane fouling. This study introduces a new ion-crosslinking method to fabricate copper alginate hydrogel membranes with improved mechanical strength and antimicrobial capabilities. The membranes exhibit excellent separation performance and enhanced long-term molecule/ion separation through improved anti-swelling properties. Molecular dynamics simulations and life cycle analysis highlight the pore structure and environmental friendliness of the hydrogel membranes. These findings provide valuable insights for developing sustainable hydrogel membranes with stable performance and high separation efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Dongmei Liu, Aiying Guo, Yanling Qi, Zhixin Ji, Hongjuan Li, Zhiwei Zhang, Xinyue Zhang, Kunze Wu, Aijun Cai
Summary: In this study, a stable magnetic Mg/Mn-layered double oxide-doped biochar composite (MgMnLDO-MBC) was prepared and successfully used for the removal of antibiotics and bacteria from wastewater. The composite exhibited enhanced surface areas, adsorption sites, and free radicals, leading to improved catalytic activity. The effects of different factors on the removal efficiency were evaluated, and the composite showed good reusability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Feng Wang, Zhaoyong Bian, Yaru Zhang, Wenchao Yu, Qiang Zhang, Hui Wang
Summary: In this study, a nanofibrous layered structure of Ff-Ti3C2Tx-Co3O4 was prepared by self-assembling nanofibrous Co3O4 with lamellar fluorine-free MXene (Ff-Ti3C2Tx). The Ff-Ti3C2Tx-Co3O4 exhibited excellent catalytic activity for degradation, resistant to ionic interference, and maintained high removal efficiency of sulfamethoxazole (SMX) in municipal wastewater. The rapid SMX degradation involved fast electron transfer in redox cycles with PMS and the generation of 1O2 via PMS ->center dot O2 -> 1O2. This work provides new insights into antibiotic degradation mechanisms and electron transfer based on PMS activation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Weipeng He, Jiacheng Luo, Yujie Wu, Tianhao Luo, Chen Tang
Summary: This study comparatively evaluated the role of cationic, anionic, and nonionic polyacrylamides (PAMs) in ballasted flocculation of clay suspensions under different aluminum sulfate (AS) coagulant dosages. The selection of PAMs and AS dosage had a significant influence on the size and shear resistance of ballasted floc aggregates.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Lixian Wang, Lizhi Zhao, Didi Si, Zhixin Li, Huiqin An, Hui Ye, Qingping Xin, Hong Li, Yuzhong Zhang
Summary: Metalloporphyrin-based nanozymes integrated with poly (vinylidene fluoride) membrane show high catalytic activity and reusability for the decolorization of Congo Red dye in continuous flow process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Yongfei Ma, Chenyu Zeng, Yongzhen Ding, Jiayi Tang, Ondrej Masek, Zhikang Deng, Rui Mu, Zulin Zhang
Summary: In this study, sludge-derived biochar (SBC) was functionalized with various iron salts to enhance its adsorption ability for sulfamethoxazole (SMX) and magnetic collection performance. Ball milling was further employed to treat the optimal iron salt functionalized SBC (MSBC), resulting in ball milled SBC (BMSBC) with improved adsorption performance for SMX. The dominant driving mechanism for SMX adsorption onto BMSBC was confirmed to be multiple physicochemical forces, including 7C-7C conjugation, pore filling, H-bonding, Fe-O complexation, and electrostatic interactions. BMSBC exhibited favorable adsorption ability for SMX in actual waters and could be easily collected within 1 min due to its magnetic sensitivity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Jinglin Tan, Xiaohui Mao, Wenjihao Hu, Hongbo Zeng
Summary: This study investigates the influence of PDMS chain architectures on surface properties and reveals that PDMS coatings with looped structures exhibit superior hydrophobicity, self-cleaning, and water sliding compared to coatings with linear structures. Additionally, both looped and linear PDMS coated stainless steel mesh/polyester fibers show efficient separation of oil/water mixture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Wei-Liang Chen, Chih-Chia Cheng, Chien-Hsing Lu, Jem-Kun Chen
Summary: This study designs a novel sandwich-structured capacitor that reduces the absorption time of pollutants using dielectrophoresis force. By coating graphene oxide on polystyrene microspheres as adsorbents and encapsulating them within the capacitor, the adsorption rate is significantly enhanced. Additionally, frequency manipulation allows for the recycling of adsorbents and concentration of dyes, minimizing secondary pollution.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)