Pub Date : 2025-01-25DOI: 10.1016/j.jiec.2024.07.002
Maliheh Saravani Ghayour, Seyed Reza Shabanian
Ethylene (C2H4) and acetylene (C2H2) are crucial materials in the petrochemical industry, obtained through various processes utilizing natural gas and other hydrocarbon fuels. In this research, the Partially Decoupled Process (PDP) has been investigated through Computational Fluid Dynamics (CFD) simulation to analyze the effects of different parameters on the production of acetylene and ethylene. The evaluated parameters included the mass flow rate ratio, fuel preheating temperature, the addition of ethane and propane to the fuel, the addition of H2, CO2, and H2O to the inlet feed and, reducing the jet inlet diameter. The results showed that an increase in the mass flow rate leads to an increase in the mole fraction of C2 (C2H2 + C2H4) in the reactor outlet. Furthermore, the substitution of 30 % methane with a combination of 20 % ethane and 10 % propane has resulted in a 6 % increase in the mole fraction of C2H2, a 43 % reduction in the mole fraction of C2H4, and a 5.6 % increase in the mole fraction of H2 at the outlet of the reactor. It was also observed that by decreasing the diameter of the side tubes from 43.3 mm to 20 mm, methane conversion decreases by 1.14 %, and C2 yield decreases by 46.8 %.
{"title":"Numerical analysis of production of C2 olefins from methane in Partially Decoupled process","authors":"Maliheh Saravani Ghayour, Seyed Reza Shabanian","doi":"10.1016/j.jiec.2024.07.002","DOIUrl":"10.1016/j.jiec.2024.07.002","url":null,"abstract":"<div><div>Ethylene (C<sub>2</sub>H<sub>4</sub>) and acetylene (C<sub>2</sub>H<sub>2</sub>) are crucial materials in the petrochemical industry, obtained through various processes utilizing natural gas and other hydrocarbon fuels. In this research, the Partially Decoupled Process (PDP) has been investigated through Computational Fluid Dynamics (CFD) simulation to analyze the effects of different parameters on the production of acetylene and ethylene. The evaluated parameters included the mass flow rate ratio, fuel preheating temperature, the addition of ethane and propane to the fuel, the addition of H<sub>2</sub>, CO<sub>2</sub>, and H<sub>2</sub>O to the inlet feed and, reducing the jet inlet diameter. The results showed that an increase in the mass flow rate leads to an increase in the mole fraction of C<sub>2</sub> (C<sub>2</sub>H<sub>2</sub> + C<sub>2</sub>H<sub>4</sub>) in the reactor outlet. Furthermore, the substitution of 30 % methane with a combination of 20 % ethane and 10 % propane has resulted in a 6 % increase in the mole fraction of C<sub>2</sub>H<sub>2</sub>, a 43 % reduction in the mole fraction of C<sub>2</sub>H<sub>4</sub>, and a 5.6 % increase in the mole fraction of H<sub>2</sub> at the outlet of the reactor. It was also observed that by decreasing the diameter of the side tubes from 43.3 mm to 20 mm, methane conversion decreases by 1.14 %, and C<sub>2</sub> yield decreases by 46.8 %.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"141 ","pages":"Pages 394-410"},"PeriodicalIF":5.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-25DOI: 10.1016/j.jiec.2024.06.037
Mahtab Farahpour, Saeid Azizian
Utilization of solar energy for desalination and purification of seawater opens up a state-of-the-art way to meet the water needs all around the world specially in coastal cities. Herein, the eco-friendly, low cost and bio-based basil seed (BS) hydrogel is combined with activated carbon (AC) to synthesize activated carbon merged with basil seed hydrogel (AC-BS) composite material. Due to the photothermal property of the AC, the AC-BS composite was used to design an interfacial solar steam generator (ISSG) for water purification. The AC absorbs the sunlight and converts it to the required heat needed for water evaporation and the superhydrophilic BS hydrogel supplies water to the surface causing the high salt rejection ability of the system, in addition, it decreases the required energy for evaporation. The AC-BS is characterized using characterization methods such as EDX and FESEM. The two-dimensional (2D) AC-BS system containing a cotton fiber used to transfer water from the bulk to the surface, a layer of styrofoam as a heat insulator and AC-BS on the surface shows evaporation rate of 1.93 kg m−2h−1. The three-dimensional (3D) AC-BS, designed to solve the solar irradiation angle fluctuation problem during a day and seasons, shows an evaporation rate of 2.70 kg m−2h−1 and an efficiency of about 91 % under 1 sun illumination. The ability of the AC-BS system for saline water desalination and waste water-contaminated dyes as a pollutant treatment is highly acceptable. The AC-BS ISSG can be studied and used on large scales to provide fresh water from saline water.
{"title":"Basil seed hydrogel incorporated activated carbon as a Capable, Bio-Based, and Cost-Effective interfacial solar steam generator","authors":"Mahtab Farahpour, Saeid Azizian","doi":"10.1016/j.jiec.2024.06.037","DOIUrl":"10.1016/j.jiec.2024.06.037","url":null,"abstract":"<div><div><span>Utilization of solar energy for desalination and purification of seawater opens up a state-of-the-art way to meet the water needs all around the world specially in coastal cities. Herein, the eco-friendly, low cost and bio-based basil seed (BS) hydrogel is combined with activated carbon (AC) to synthesize activated carbon merged with basil seed hydrogel (AC-BS) composite material. Due to the photothermal property of the AC, the AC-BS composite was used to design an interfacial solar steam generator (ISSG) for water purification. The AC absorbs the sunlight and converts it to the required heat needed for water evaporation and the superhydrophilic BS hydrogel supplies water to the surface causing the high salt rejection ability of the system, in addition, it decreases the required energy for evaporation. The AC-BS is characterized using characterization methods such as EDX and FESEM. The two-dimensional (2D) AC-BS system containing a cotton fiber used to transfer water from the bulk to the surface, a layer of styrofoam as a heat insulator and AC-BS on the surface shows evaporation rate of 1.93 kg m</span><sup>−2</sup>h<sup>−1</sup>. The three-dimensional (3D) AC-BS, designed to solve the solar irradiation angle fluctuation problem during a day and seasons, shows an evaporation rate of 2.70 kg m<sup>−2</sup>h<sup>−1</sup> and an efficiency of about 91 % under 1 sun illumination. The ability of the AC-BS system for saline water desalination and waste water-contaminated dyes as a pollutant treatment is highly acceptable. The AC-BS ISSG can be studied and used on large scales to provide fresh water from saline water.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"141 ","pages":"Pages 285-296"},"PeriodicalIF":5.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-25DOI: 10.1016/j.jiec.2024.07.001
Manh B. Nguyen , Huan V. Doan , Doan Le Hoang Tan , Tran Dai Lam
This study presents a novel photocatalytic composite, Ag3PO4/GCN/FeNi-BTC/CQD (AGF-CQD), synthesized via a green microwave-assisted hydrothermal method, integrating carbon quantum dots (CQDs) derived from aquaculture by-products. The AGF-CQD composite demonstrates superior photocatalytic activity, attributed to enhanced visible light absorption, efficient charge transfer, and improved electron-hole separation. Analytical techniques such as photoluminescence (PL), UV–Vis diffuse reflectance spectroscopy (DRS), and transmission electron microscopy (TEM) validate the composite’s structural and optical properties. In tetracycline degradation tests, AGF-CQD outperforms Ag3PO4, GCN, FeNi-BTC, and 20 % AGF samples by 5.5, 3.6, 4.4, and 2.3 times, respectively, achieving a remarkable 98.4 % removal rate after 60 min under visible light. Factors affecting degradation, including dosage, concentration, pH, and water source, are investigated. Furthermore, an operating mechanism based on electrochemical properties and the involvement of radicals is proposed. This research offers a sustainable approach to synthesizing efficient photocatalysts for environmental remediation.
{"title":"Enhancement of tetracycline photocatalytic degradation under visible light: Unleashing the synergy of Z-scheme Ag3PO4/GCN/FeNi-BTC photocatalyst with carbon quantum dots","authors":"Manh B. Nguyen , Huan V. Doan , Doan Le Hoang Tan , Tran Dai Lam","doi":"10.1016/j.jiec.2024.07.001","DOIUrl":"10.1016/j.jiec.2024.07.001","url":null,"abstract":"<div><div>This study presents a novel photocatalytic composite, Ag<sub>3</sub>PO<sub>4</sub>/GCN/FeNi-BTC/CQD (AGF-CQD), synthesized via a green microwave-assisted hydrothermal method, integrating carbon quantum dots (CQDs) derived from aquaculture by-products. The AGF-CQD composite demonstrates superior photocatalytic activity, attributed to enhanced visible light absorption, efficient charge transfer, and improved electron-hole separation. Analytical techniques such as photoluminescence (PL), UV–Vis diffuse reflectance spectroscopy (DRS), and transmission electron microscopy (TEM) validate the composite’s structural and optical properties. In tetracycline degradation tests, AGF-CQD outperforms Ag<sub>3</sub>PO<sub>4</sub><span>, GCN, FeNi-BTC, and 20 % AGF samples by 5.5, 3.6, 4.4, and 2.3 times, respectively, achieving a remarkable 98.4 % removal rate after 60 min under visible light. Factors affecting degradation, including dosage, concentration, pH, and water source, are investigated. Furthermore, an operating mechanism based on electrochemical properties and the involvement of radicals is proposed. This research offers a sustainable approach to synthesizing efficient photocatalysts for environmental remediation.</span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"141 ","pages":"Pages 380-393"},"PeriodicalIF":5.9,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-03DOI: 10.1016/j.jiec.2025.01.002
Sharmin Mst Akter , Hari Krishnan Yogesh , Kavitha Govindarajan , Balkew Zewge Hailemeskel , Bezuayehu Tadesse Negussie , Asfaw Negash , Shohel Mahmud , Rashika Rajasekhar Kavitha , Kinjal J. Shah , Parasuraman Vijayarohini , Woo Ram Lee , Seung do Kim
Post-COVID-19 pandemic, for the betterment of human health, developing antimicrobial air filters using generally recognized as safe (GRAS) materials is of interest to reduce indoor bioaerosols and airborne pathogens. Essential oil (EO)-incorporated air filters have a standard momentous attention due to their sustainability and non-toxicity. EOs are biocompatible, environmentally friendly, cost-effective, and nature-derived materials. They have a broad spectrum of antibacterial mechanisms that prevent the bacteria from developing resistance. EO-incorporated air filters are alternatives to existing ultraviolet (UV), plasma, and ozone-based air filters that effectively disinfect pathogens without releasing toxic byproducts into the atmosphere. This review focuses on recent advances in EO-integrated air filters and corresponding air-purification systems, followed by the chemical properties of EOs, antimicrobial mechanisms, pathogen inhibition capacities, encapsulation techniques, and related legislation.
{"title":"Progressive innovations in essential oil and their inlaid air filters for bioaerosol control: A review on future outlook","authors":"Sharmin Mst Akter , Hari Krishnan Yogesh , Kavitha Govindarajan , Balkew Zewge Hailemeskel , Bezuayehu Tadesse Negussie , Asfaw Negash , Shohel Mahmud , Rashika Rajasekhar Kavitha , Kinjal J. Shah , Parasuraman Vijayarohini , Woo Ram Lee , Seung do Kim","doi":"10.1016/j.jiec.2025.01.002","DOIUrl":"10.1016/j.jiec.2025.01.002","url":null,"abstract":"<div><div>Post-COVID-19 pandemic, for the betterment of human health, developing antimicrobial air filters using generally recognized as safe (GRAS) materials is of interest to reduce indoor bioaerosols and airborne pathogens. Essential oil (EO)-incorporated air filters have a standard momentous attention due to their sustainability and non-toxicity. EOs are biocompatible, environmentally friendly, cost-effective, and nature-derived materials. They have a broad spectrum of antibacterial mechanisms that prevent the bacteria from developing resistance. EO-incorporated air filters are alternatives to existing ultraviolet (UV), plasma, and ozone-based air filters that effectively disinfect pathogens without releasing toxic byproducts into the atmosphere. This review focuses on recent advances in EO-integrated air filters and corresponding air-purification systems, followed by the chemical properties of EOs, antimicrobial mechanisms, pathogen inhibition capacities, encapsulation techniques, and related legislation.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"145 ","pages":"Pages 255-270"},"PeriodicalIF":5.9,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-03DOI: 10.1016/j.jiec.2024.12.073
Anafi Nur’aini , Emma Laasonen , Vesa Ruuskanen , Tuomas Koiranen , Pertti Kauranen , Jero Ahola
Molten carbonate electrolysis is a technology that can convert CO2 into valuable solid carbon and oxygen gas. Different materials of electrode pairs are considered in molten carbonate electrolysis, including a titanium cathode and a titanium anode (Ti–Ti), a titanium cathode and a nickel anode (Ti–Ni), a titanium cathode and an Alloy X anode (Ti–Ax), a nickel cathode and a titanium anode (Ni–Ti), and an Alloy X cathode and a titanium anode (Ax–Ti). The electrode pairs are assessed based on their electrolysis performance and characteristics of carbon, which are analyzed using scanning electron microscope (SEM), x-ray diffraction (XRD), and energy dispersive spectroscopy (EDS). The results show that the Ti–Ni pair exhibits the most stable potential performance, the highest Faraday and voltage efficiency, the lowest specific electrical energy consumption, and the fastest carbon deposition rate. Moreover, regardless of the anode, the use of titanium as a cathode results in a spherical onion-like shape, while Alloy X as a cathode produces an amorphous structure with some tubular form.
Based on these results, the effect of the applied current density for the Ti–Ni electrode pair is investigated. The applied current density of 0.1 A cm−2 shows the highest Faraday efficiency of 67.4% and voltage efficiency of 52.3%. It also has the lowest specific electrical energy consumption for a solid carbon product of 25.9 kW h kg−1. The fastest carbon deposition rate is 0.027 g cm−2 h−1, which is obtained by applying a current density of 0.4 A cm−2. The morphology of carbon produced with the applied current density between 0.1 and 0.4 A cm−2 shows a dominant spherical-like onion shape with a larger diameter at a higher applied current density. Furthermore, some tubular forms are found as a result of the applied current densities of 0.2 A cm−2 and 0.3 A cm−2. Plate shapes are also observed, yet only as a result of the applied current density of 0.4 A cm−2. This finding suggests that the applied current density affects the diameter of the carbon particles, but does not significantly change the morphology.
{"title":"Investigation of electrode material and applied current density in molten carbonate electrolysis","authors":"Anafi Nur’aini , Emma Laasonen , Vesa Ruuskanen , Tuomas Koiranen , Pertti Kauranen , Jero Ahola","doi":"10.1016/j.jiec.2024.12.073","DOIUrl":"10.1016/j.jiec.2024.12.073","url":null,"abstract":"<div><div>Molten carbonate electrolysis is a technology that can convert CO<sub>2</sub> into valuable solid carbon and oxygen gas. Different materials of electrode pairs are considered in molten carbonate electrolysis, including a titanium cathode and a titanium anode (Ti–Ti), a titanium cathode and a nickel anode (Ti–Ni), a titanium cathode and an Alloy X anode (Ti–Ax), a nickel cathode and a titanium anode (Ni–Ti), and an Alloy X cathode and a titanium anode (Ax–Ti). The electrode pairs are assessed based on their electrolysis performance and characteristics of carbon, which are analyzed using scanning electron microscope (SEM), x-ray diffraction (XRD), and energy dispersive spectroscopy (EDS). The results show that the Ti–Ni pair exhibits the most stable potential performance, the highest Faraday and voltage efficiency, the lowest specific electrical energy consumption, and the fastest carbon deposition rate. Moreover, regardless of the anode, the use of titanium as a cathode results in a spherical onion-like shape, while Alloy X as a cathode produces an amorphous structure with some tubular form.</div><div>Based on these results, the effect of the applied current density for the Ti–Ni electrode pair is investigated. The applied current density of 0.1<!--> <!-->A<!--> <!-->cm<sup>−2</sup> shows the highest Faraday efficiency of 67.4% and voltage efficiency of 52.3%. It also has the lowest specific electrical energy consumption for a solid carbon product of 25.9<!--> <!-->kW<!--> <!-->h<!--> <!-->kg<sup>−1</sup>. The fastest carbon deposition rate is 0.027<!--> <!-->g<!--> <!-->cm<sup>−2</sup> <!-->h<sup>−1</sup>, which is obtained by applying a current density of 0.4<!--> <!-->A<!--> <!-->cm<sup>−2</sup>. The morphology of carbon produced with the applied current density between 0.1 and 0.4<!--> <!-->A<!--> <!-->cm<sup>−2</sup> shows a dominant spherical-like onion shape with a larger diameter at a higher applied current density. Furthermore, some tubular forms are found as a result of the applied current densities of 0.2<!--> <!-->A<!--> <!-->cm<sup>−2</sup> and 0.3<!--> <!-->A<!--> <!-->cm<sup>−2</sup>. Plate shapes are also observed, yet only as a result of the applied current density of 0.4<!--> <!-->A<!--> <!-->cm<sup>−2</sup>. This finding suggests that the applied current density affects the diameter of the carbon particles, but does not significantly change the morphology.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"144 ","pages":"Pages 792-805"},"PeriodicalIF":5.9,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143372238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-30DOI: 10.1016/j.jiec.2024.12.076
Ravi Kumar Yohan , Mohanraj Jagannathan , Gopi Sivalingam
Functional characteristics with high photoactive and electroactive properties have been emerging as the subject of advanced analytical applications. Recently, significant research has been augmenting the development of photoactive nanomaterials that can be utilized for both qualitative and quantitative determination of analytes for environmental, food, and healthcare applications. This review focuses on recent advancements in photoactive nanostructures for photoelectrochemical (PEC) sensing applications, emphasizing their preparation, functionalization, and electrode construction strategies. Key developments include the rational design of photoactive materials with enhanced photoelectrochemical performances and signal-amplification techniques for improved sensitivity and selectivity. The review highlights the application of PEC sensors for detecting various analytes, such as insecticides, antibiotics, pathogens, carcinogenic compounds, and metabolic disorder markers in environmental, food, and healthcare settings. Current challenges, including material stability, selectivity, and real-world applicability, are critically discussed, along with future research directions for designing next-generation PEC sensors with superior functional properties.
{"title":"The role of emerging photoactive nanostructures in electrochemical sensor construction: Synthesis, properties, challenges, and perspectives","authors":"Ravi Kumar Yohan , Mohanraj Jagannathan , Gopi Sivalingam","doi":"10.1016/j.jiec.2024.12.076","DOIUrl":"10.1016/j.jiec.2024.12.076","url":null,"abstract":"<div><div>Functional characteristics with high photoactive and electroactive properties have been emerging as the subject of advanced analytical applications. Recently, significant research has been augmenting the development of photoactive nanomaterials that can be utilized for both qualitative and quantitative determination of analytes for environmental, food, and healthcare applications. This review focuses on recent advancements in photoactive nanostructures for photoelectrochemical (PEC) sensing applications, emphasizing their preparation, functionalization, and electrode construction strategies. Key developments include the rational design of photoactive materials with enhanced photoelectrochemical performances and signal-amplification techniques for improved sensitivity and selectivity. The review highlights the application of PEC sensors for detecting various analytes, such as insecticides, antibiotics, pathogens, carcinogenic compounds, and metabolic disorder markers in environmental, food, and healthcare settings. Current challenges, including material stability, selectivity, and real-world applicability, are critically discussed, along with future research directions for designing next-generation PEC sensors with superior functional properties.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"145 ","pages":"Pages 234-254"},"PeriodicalIF":5.9,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-27DOI: 10.1016/j.jiec.2024.12.064
Zouhir Balagh, Yassine Ait-khouia, Mostafa Benzaazoua, Yassine Taha
With rising global demand for phosphate-based fertilizers, phosphate mining has led to significant waste rock accumulation, primarily consisting of dolomite [CaMg(CO3)2]. This dolomite-rich waste rock (DRWR) presents both environmental risks, such as groundwater contamination, and opportunities for producing valuable calcium and magnesium phosphate compounds. This study explores the potential of phosphoric acid (PA), a phosphate industry product, for selectively leaching dolomite from DRWR to recover calcium and magnesium phosphates. Using a design of experiments (DOE) methodology, the research examines factors affecting leaching efficiency, including temperature, PA concentration, particle size, acid introduction method, solid–liquid (S/L) ratio, reaction time, and stirring speed. Thermodynamic analysis revealed that PA selectively reacted with dolomite in a temperature-sensitive manner, with optimal conditions identified as 44.97 °C, 3.07 mol/L PA, 47 min reaction time, and a S/L ratio of 5.69/50 (g/mL) using a Box-Behnken design. Kinetic studies, employing the shrinking core model, measured the dissolution rate across various conditions—leaching temperature (20–80 °C), stirrer speed (200–750 rpm), particle size (−90 µm to 600 µm), and PA concentration (0.5–4.5 M). An activation energy of 20.96 kJ/mol suggests a product layer diffusion-controlled mechanism. These results provide valuable insights for developing sustainable processes, and promoting circular economy practices in the phosphate industry.
{"title":"Magnesium and calcium extraction from phosphate mine waste rock using phosphoric acid: Thermodynamics, parameter optimization, kinetics, and reaction mechanism","authors":"Zouhir Balagh, Yassine Ait-khouia, Mostafa Benzaazoua, Yassine Taha","doi":"10.1016/j.jiec.2024.12.064","DOIUrl":"10.1016/j.jiec.2024.12.064","url":null,"abstract":"<div><div>With rising global demand for phosphate-based fertilizers, phosphate mining has led to significant waste rock accumulation, primarily consisting of dolomite [CaMg(CO<sub>3</sub>)<sub>2</sub>]. This dolomite-rich waste rock (DRWR) presents both environmental risks, such as groundwater contamination, and opportunities for producing valuable calcium and magnesium phosphate compounds. This study explores the potential of phosphoric acid (PA), a phosphate industry product, for selectively leaching dolomite from DRWR to recover calcium and magnesium phosphates. Using a design of experiments (DOE) methodology, the research examines factors affecting leaching efficiency, including temperature, PA concentration, particle size, acid introduction method, solid–liquid (S/L) ratio, reaction time, and stirring speed. Thermodynamic analysis revealed that PA selectively reacted with dolomite in a temperature-sensitive manner, with optimal conditions identified as 44.97 °C, 3.07 mol/L PA, 47 min reaction time, and a S/L ratio of 5.69/50 (g/mL) using a Box-Behnken design. Kinetic studies, employing the shrinking core model, measured the dissolution rate across various conditions—leaching temperature (20–80 °C), stirrer speed (200–750 rpm), particle size (−90 µm to 600 µm), and PA concentration (0.5–4.5 M). An activation energy of 20.96 kJ/mol suggests a product layer diffusion-controlled mechanism. These results provide valuable insights for developing sustainable processes, and promoting circular economy practices in the phosphate industry.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"146 ","pages":"Pages 812-825"},"PeriodicalIF":5.9,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-27DOI: 10.1016/j.jiec.2024.12.008
Doyeon Song , Juwon Min , Seung-Jun Baek , In-Hyoup Song , Myung-June Park , Anil H. Valekar , Macchindra G. Chandgude , Young Kyu Hwang , Kyoung-Su Ha
{"title":"Corrigendum to “Scale-up of dehydrogenation reaction system via heterogeneous metal catalysts for the utilization of by-product glycerol from biodiesel production process” [J. Ind. Eng. Chem. 136 (2024) 211–221]","authors":"Doyeon Song , Juwon Min , Seung-Jun Baek , In-Hyoup Song , Myung-June Park , Anil H. Valekar , Macchindra G. Chandgude , Young Kyu Hwang , Kyoung-Su Ha","doi":"10.1016/j.jiec.2024.12.008","DOIUrl":"10.1016/j.jiec.2024.12.008","url":null,"abstract":"","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"144 ","pages":"Page 806"},"PeriodicalIF":5.9,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143372239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-19DOI: 10.1016/j.jiec.2024.12.033
Nithin Mithra S, Sandeep S. Ahankari
Biogas can be used as a renewable energy source to mitigate the use of conventional fuels. However, for this to happen its quality must be improved. Herein biogas purification was carried out utilising membranes with a biodegradable selective layer of carboxymethylated cellulose nanocrystals (C-CNC)/ Polyvinyl alcohol (PVA)- L Arginine nanocomposite coated over highly porous poly(ether-sulfone) (PESF) hollow fibre substrate. Facilitated transport of CO2 aided by a mobile carrier (L-Arginine) and NaOH as carriers of CO2 in the hydrophilic C-CNC/PVA under high relative humidity is the principle of this separation process. Concentrations varying from 0-2 wt% of C-CNC in PVA-LA were considered for the study at 90 % RH and varying feed pressures of 0.8–1 bar. CO2 permeance and selectivity increased with the increase in C-CNC concentration till 1C-CNC/PVA-LA (1 wt% of C-CNC in PVA-LA) (6226 GPU permeance and selectivity of 19). At further higher C-CNC concentrations, a high chance of creating C-CNC-induced pathways through the selective layer could have created higher swelling, hence a reduction in CO2 permeance (5244 GPU) and reduced selectivity (11) for 2C-CNC/PVA-LA. Overall, a synergistic effect of the hydrophilicity induced by the C-CNC in PVA along with L-Arginine and NaOH for CO2 transport helped the attainment of biogas purification at low-pressure conditions.
{"title":"The synergistic effect of carboxymethylated cellulose nanocrystals -Polyvinyl alcohol- L Arginine in facilitated transport membranes for biogas purification","authors":"Nithin Mithra S, Sandeep S. Ahankari","doi":"10.1016/j.jiec.2024.12.033","DOIUrl":"10.1016/j.jiec.2024.12.033","url":null,"abstract":"<div><div>Biogas can be used as a renewable energy source to mitigate the use of conventional fuels. However, for this to happen its quality must be improved. Herein biogas purification was carried out utilising membranes with a biodegradable selective layer of carboxymethylated cellulose nanocrystals (C-CNC)/ Polyvinyl alcohol (PVA)- L Arginine nanocomposite coated over highly porous poly(ether-sulfone) (PESF) hollow fibre substrate. Facilitated transport of CO<sub>2</sub> aided by a mobile carrier (L-Arginine) and NaOH as carriers of CO<sub>2</sub> in the hydrophilic C-CNC/PVA under high relative humidity is the principle of this separation process. Concentrations varying from 0-2 wt% of C-CNC in PVA-LA were considered for the study at 90 % RH and varying feed pressures of 0.8–1 bar. CO<sub>2</sub> permeance and selectivity increased with the increase in C-CNC concentration till 1C-CNC/PVA-LA (1 wt% of C-CNC in PVA-LA) (6226 GPU permeance and selectivity of 19). At further higher C-CNC concentrations, a high chance of creating C-CNC-induced pathways through the selective layer could have created higher swelling, hence a reduction in CO<sub>2</sub> permeance (5244 GPU) and reduced selectivity (11) for 2C-CNC/PVA-LA. Overall, a synergistic effect of the hydrophilicity induced by the C-CNC in PVA along with L-Arginine and NaOH for CO<sub>2</sub> transport helped the attainment of biogas purification at low-pressure conditions.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"144 ","pages":"Pages 782-791"},"PeriodicalIF":5.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143372657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-14DOI: 10.1016/j.jiec.2024.12.006
Asmaa A. Roshdy , Ahmed H. Elged , Abeer A. El-Segaey , Abdelrahman M. Rabie , Amr H. Mady , Woo Kyoung Kim
Novel flower-shaped Co:Ni@zeolitic imidazolate framework (ZIF)-8 catalysts with different molar ratios of Co:Ni decorated with nano ZIF-8 metal–organic frameworks (MOFs) were prepared using a simple hydrothermal process followed by simple co-precipitation method to enhance the efficiency of Co:Ni toward peroxymonosulfate (PMS) activation for p-nitrophenol (PNP) degradation. The performance of the catalysts was investigated under different optimal conditions, including the Co:Ni ratio, temperature, catalyst dose, pH, and PMS dose, and the mechanism are extensively discussed. The calcined sample NiCo2O4@ZIF-8 exhibited an outstanding degradation efficiency for PNP after 60 min through the activation of PMS, which in turn generated active sulfate radicals (SO4•−). Importantly, NiCo2O4@ZIF-8 improved the mineralization rate of PNP to approximately 98 % within 4 h and was successfully applied to actual sample analysis. The presence and relative concentrations of other various reactive oxygen species (ROS), including sulfate radical (SO4•−), hydroxyl radicals (•OH), and superoxide radicals (O2•−), were determined through a trapping experiment. The prepared NiCo2O4@ZIF-8 composite exhibited excellent stability and reusability over five successive cycles.
{"title":"Nano ZIF-8-decorated flower-shaped cobalt–nickel catalyst for p-nitrophenol degradation via peroxymonosulfate activation: A new insight into the mechanism","authors":"Asmaa A. Roshdy , Ahmed H. Elged , Abeer A. El-Segaey , Abdelrahman M. Rabie , Amr H. Mady , Woo Kyoung Kim","doi":"10.1016/j.jiec.2024.12.006","DOIUrl":"10.1016/j.jiec.2024.12.006","url":null,"abstract":"<div><div>Novel flower-shaped Co:Ni@zeolitic imidazolate framework (ZIF)-8 catalysts with different molar ratios of Co:Ni decorated with nano ZIF-8 metal–organic frameworks (MOFs) were prepared using a simple hydrothermal process followed by simple co-precipitation method to enhance the efficiency of Co:Ni toward peroxymonosulfate (PMS) activation for p-nitrophenol (PNP) degradation. The performance of the catalysts was investigated under different optimal conditions, including the Co:Ni ratio, temperature, catalyst dose, pH, and PMS dose, and the mechanism are extensively discussed. The calcined sample NiCo<sub>2</sub>O<sub>4</sub>@ZIF-8 exhibited an outstanding degradation efficiency for PNP after 60 min through the activation of PMS, which in turn generated active sulfate radicals (SO<sub>4</sub><sup>•</sup><strong><sup>−</sup></strong>). Importantly, NiCo<sub>2</sub>O<sub>4</sub>@ZIF-8 improved the mineralization rate of PNP to approximately 98 % within 4 h and was successfully applied to actual sample analysis. The presence and relative concentrations of other various reactive oxygen species (ROS), including sulfate radical (SO<sub>4</sub><sup>•</sup><strong><sup>−</sup></strong>), hydroxyl radicals (<sup>•</sup>OH), and superoxide radicals (O<sub>2</sub><sup>•−</sup>), were determined through a trapping experiment. The prepared NiCo<sub>2</sub>O<sub>4</sub>@ZIF-8 composite exhibited excellent stability and reusability over five successive cycles.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"146 ","pages":"Pages 800-811"},"PeriodicalIF":5.9,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}