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Iranian Journal of Chemical Engineering
ISSN 1735-5397 · Iranian Association of Chemical Engineering (IAChE) · 500 artikel di indeks
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Feasibility of the Purification of Pharmaceuticals from Aqueous Solutions using Carbon Nanotubes in the Presence of Oxidizers
In this research, the methods of oxidation, oxidation along with carbon nanotubes and surface absorption of carbon nanotubes were investigated to remove the drug substance of cefixime from aqueous solutions. In these methods, the removal percentage of cefixime was 78%, 96% and 70% respectively…
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Assessing the Impact of Hydraulic Retention Time and Sawdust on the Elimination of Pb and Co from Oily Wastewater via Vertical-Flow Constructed Wetlands (VFCWs) with Phragmites Australis Cultivation
Constructed wetlands have been increasingly used as an effective method for removing heavy metals from wastewater. This study aimed to investigate the combined effect of sawdust and Hydraulic Retention Time (HRT) on the performance of vertical-flow constructed wetlands cultivated with Phragmites…
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Experimental Study and CFD Modeling of Heat Transfer using Boehmite-Water Nanofluid in a Pilot Scale Shell and Tube Heat Exchanger
In the current research, heat transfer within a pilot scale shell and tube heat exchanger is investigated. The heat exchanger consist of a shell and five copper tubes. Water as the cold stream and Boehmite-water nanofluid as the hot stream passes through the shell and tube side, respectively. The…
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Mathematical Modeling of Mass Transfer during Solid-Liquid Extraction in Fixed, Expanded and Fluidized-Bed Columns
In this paper, modeling approaches were given for explaining mass transfer during solid-liquid extraction in continuous fixed, expanded, and fluidized-bed extractors. The first approach utilizes a differential mass balance-based model, focusing on the differential mass conservation within an…
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Developing Collagen Hydrogel Including Bioactive Glass Nanoparticles for being used in Bone Tissue Engineering
Numerous bone disorders and injuries, such as osteoporosis, are among the most spreading types of human tissue injuries worldwide, and the available treatments for these injuries are often insufficient and inefficient. Nowadays a lot of attention has been paid to the regenerative medicine…
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Application and Comparison of MAF-66 with AC and CMS in Vacuum Swing Adsorption Process for CO2 Capture from Flue Gas
Vacuum swing adsorption (VSA) for CO2 capture has been a focus of significant research efforts aimed at developing innovative CO2 adsorbent materials. In this study, three adsorbents (MAF-66, AC, and CMS) were utilized for capturing CO2 from flue gas through the VSA process, and their performances…
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Degradation of Acetic Acid to decrease COD by Photocatalytic Process in Wastewater: TiO2 catalyst with UV Process
This study was conducted to decrease the concentration of acetic acid in wastewater of acetic acid plants through the photocatalytic oxidation method. This process employed commercial Titanium dioxide powder (TiO2) as a photocatalyst, utilizing a UV lamp as the light source within a batch reactor…
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Investigating the Effect of Magnetic Field on the Thermal Conductivity of Ferrofluid Containing Fe3O4 and CoFe2O4 Spinel Ferrite Nanoparticles and Presenting a New Correlation
In this study, the effect of the presence of a magnetic field (MF) on the thermal conductivity of the nanofluid (NF) ( ) containing spinel ferrite nanoparticles (NPs) (MFe2O4, M=Fe, Co) was investigated. CoFe2O4 NPs were concentrated by the coprecipitation method. Both NPs were characterized by…
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Effect of Synthesis Method and Nickel-Copper Loading on Ni-Cu-Al Catalysts for Production of Hydrogen Via Ethanol Steam Reforming
In the present work, the effect of synthesis method (simultaneous impregnation and coprecipitation) and copper to nickel active phases loading were investigated in Ni-Cu-Al catalysts. The water/ethanol molar ratio of 6 and gas hourly space velocity (GHSV) of 20000 hr-1 were used in all the…
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Synthesize and Application of Fe3O4/MW-CNT Composite in Photo-Catalyst Assisted Electrochemical Oxidation of BTX Compounds from Wastewater
The Fe3O4/MW-CNT composite was prepared for a hybrid photo-catalyst-assisted electrochemical process for the removal of BTX contamination from wastewater. Oxidation of multi-walled carbon nanotube was conducted by different treatments including acid treatment and hydrogen peroxide. The XRD, FTIR…
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Experimental Measurement and Thermodynamic Modeling of CO2 Absorption in a Wide Range of Aqueous MDEA Solutions (10-98 wt%)
In this study, the process of capturing CO2 by using an aqueous MDEA solution under the operating conditions of the concentration range of 10-98 wt% of MDEA, temperature range of 303-323K and atmospheric pressure is investigated. Most researchers have measured the effect of pressure changes on the…
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Predicting the Cetane Number of Biodiesel using two AI-Models: the Gradient-based ANN and ANN Optimized by Genetic Algorithm
Time-consuming and costly experiments to measure the cetane number (CN) of biodiesel make computations even more valuable. In the current study, two artificial intelligence (AI) models have been used to predict the biodiesel CN by using comprehensive datasets (440 datasets). They were the…
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A Density Functional Theory (DFT) Investigation on the Impact of the Linker Length in Zinc Oxide-Based Metal-Organic-Frameworks for Hydrogen Adsorption
Metal-organic frameworks (MOFs) have emerged as extended-network, highly tunable, crystalline hydrogen storage adsorbents. The uptake of H2 on Zn4O-based MOFs with different linkers was studied in the current work. The binding energies, consecutive binding energy and step energy of H2 adsorption on…
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CFD Simulation and Enhancement of Liquid-Liquid Mass Transfer under the Effect of 1.7 MHz Ultrasonic Waves
This study investigates the two-phase flow simulation in a Y-type micromixer with a circular pit at the junction with a 1.7 MHz ultrasonic (US) transducer. A CFD simulation is conducted on the micromixer under varying fluid flow rates. Initially, the simulation is performed without US waves, and…
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Intensification of the Mass Transfer of the Green CO2 Capture Employing the Ternary Solution of Alkanolamine-Amino Acid
The increased demand of the world for energy and its reliance on fossil fuels ultimately contribute to the surge in the levels of carbon dioxide in the atmosphere. To achieve a green, efficient carbon capture, a novel multi-component amine-amino acid solvent including methyldiethanolamine (MDEA)…
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Optimization of Electrospinning Conditions for the Preparation of Ethyl Cellulose (EC) Nanofibers (NF) Based on the Taguchi Method
The preparation of ethylcellulose (EC) nanofibers (NFs) by the electrospinning method was optimized by Taguchi design. A Taguchi design was performed for electrospinning parameters such as EC concentration, voltage, ethanol/water ratio in the solvent, and feed rate in four levels (array L16). EC…
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Theoretical study of multi-stage and multi-feeding variable pressure humidification-dehumidification (VP-HD) desalination systems
Humidification-dehumidification (HD) desalination has been identified as a sustainable, reliable, and energy-efficient technology for producing freshwater on a small scale. VP-HD systems operated at one-stage, multi-stage, and multi-feeding vacuum humidification-over atmospheric pressure…
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CFD Modeling of the Movement of Bladeless Wind Turbines
This research presents the performance of bladeless wind turbines. It also familiarizes readers with the phenomenon of eddy current, which serves as the foundation for bladeless turbines. In this direction, these kinds of bladeless turbines have been designed, modeled, and simulated. Firstly, a…
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Fabricating a Polysulfone-ZIF-8 Composite Membrane for Separating CO2 and CH4
In this research, a mixed matrix membrane based on polysulfone and zinc nitrate-methylimidazole fillers was synthesized to improve the ability of the polymer membrane for the separation of CO2 and CH4. The membranes were fabricated using the solution casting technique and characterized using X-ray…
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Technical-economic Analysis of Chemical Hydrolysis of Microalgae for Bioethanol Production using SuperPro Designer®
This study simulated the production of bioethanol from mixed microalgae to the assess economic feasibility on an industrial scale. For the first time, the kinetic study of the chemical hydrolysis of mixed microalgae was carried out using the AQUASIM software. The chemical hydrolysis for the…