Pub Date : 2023-01-01DOI: 10.56042/ijct.v30i2.64537
{"title":"Study of the thermal behaviour of a derivative based on a zirconium agent (modified montmorillonite) and determination of the physical characteristics","authors":"","doi":"10.56042/ijct.v30i2.64537","DOIUrl":"https://doi.org/10.56042/ijct.v30i2.64537","url":null,"abstract":"","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70701668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 : 2023-01-01DOI: 10.56042/ijct.v30i2.66355
{"title":"Equilibrium, kinetic and thermodynamic study for the efficient removal of malachite green dye onto untreated Morus nigra L. (mulberry tree) leaves powder and its biochar","authors":"","doi":"10.56042/ijct.v30i2.66355","DOIUrl":"https://doi.org/10.56042/ijct.v30i2.66355","url":null,"abstract":"","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70701835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 : 2023-01-01DOI: 10.56042/ijct.v30i2.66923
{"title":"Ultrasonication pretreatment of real-field pulping wastewater from bagasse-based paper mill","authors":"","doi":"10.56042/ijct.v30i2.66923","DOIUrl":"https://doi.org/10.56042/ijct.v30i2.66923","url":null,"abstract":"","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70701868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 : 2023-01-01DOI: 10.56042/ijct.v30i5.5210
New magnetic Mn3O4/g-C3N4 and Ag2MnO4/g-C3N4 nanocomposites have been synthesized based on Mn(II) Schiff base complex and used for sonodegradation of methylene blue (MB) and methyl orange (MO) dyes in aqueous solution. Ag2MnO4 nanoparticles (NPs) have been synthesized from Mn3O4 NPs and AgNO3 under ultrasonic irradiation for the first time. The results indicate that the sonodegradation method of dyes in the presence of Mn3O4/g-C3N4 and Ag2MnO4/g-C3N4 nanocomposites is better than solar degradation processes. The better photodegradation rates for MB and MO dyes observed in the presence of Ag2MnO4/g-C3N4 (k= 0.0916 min-1) and Mn3O4/g-C3N4 (k= 0.0381 min-1), as compared to pure Mn3O4 and Ag2MnO4 compounds The synthesized nanocomposites are good fluorescent materials.
{"title":"Mn3O4 and Ag2MnO4 nanoparticles loaded on g-C3N4 as magnetically catalysts for sonodegradation of dyes","authors":"","doi":"10.56042/ijct.v30i5.5210","DOIUrl":"https://doi.org/10.56042/ijct.v30i5.5210","url":null,"abstract":"New magnetic Mn3O4/g-C3N4 and Ag2MnO4/g-C3N4 nanocomposites have been synthesized based on Mn(II) Schiff base complex and used for sonodegradation of methylene blue (MB) and methyl orange (MO) dyes in aqueous solution. Ag2MnO4 nanoparticles (NPs) have been synthesized from Mn3O4 NPs and AgNO3 under ultrasonic irradiation for the first time. The results indicate that the sonodegradation method of dyes in the presence of Mn3O4/g-C3N4 and Ag2MnO4/g-C3N4 nanocomposites is better than solar degradation processes. The better photodegradation rates for MB and MO dyes observed in the presence of Ag2MnO4/g-C3N4 (k= 0.0916 min-1) and Mn3O4/g-C3N4 (k= 0.0381 min-1), as compared to pure Mn3O4 and Ag2MnO4 compounds The synthesized nanocomposites are good fluorescent materials.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135446268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 : 2023-01-01DOI: 10.56042/ijct.v30i5.5216
PPMANC1 and PMMANC2 nanocomposites have been fabricated using two reactive clays by two methods and characterized in order to estimate the impact of the different dispersion states on the mechanical properties. A simple and economical process of polymerisation is adopted to develop PMMANC nanocomposites using an Algerian clay, trying to optimize the distribution of PMMA in the clay layers. Two distinct types of organic clays have been mined, labelled as (i) benzyltrimethyl ammonium chloride (BTBA-Mag (1CEC)) and (ii) hexadecyltrimethylammonium bromide (HDTAB-MagCTA (2.5CEC)). Evaluation of the properties of the PMMANC1 and PMMANC2 nanocomposites are carried out using different physicochemical techniques. The results obtained by XRD, transmission electron microscopy reveal that the modified maghnite are well dispersed in the matrix and significant improvements in thermal properties are observed from thermal analysis. The Young module, impact resistance and tensile strength of the nanocomposites incorporating 5% organoargile are the most effective compared to the two synthesis processes.
{"title":"Thermal and mechanical properties of nanofilled poly(methyl methacrylate) nanocomposites produced by two ultrasonic methods","authors":"","doi":"10.56042/ijct.v30i5.5216","DOIUrl":"https://doi.org/10.56042/ijct.v30i5.5216","url":null,"abstract":"PPMANC1 and PMMANC2 nanocomposites have been fabricated using two reactive clays by two methods and characterized in order to estimate the impact of the different dispersion states on the mechanical properties. A simple and economical process of polymerisation is adopted to develop PMMANC nanocomposites using an Algerian clay, trying to optimize the distribution of PMMA in the clay layers. Two distinct types of organic clays have been mined, labelled as (i) benzyltrimethyl ammonium chloride (BTBA-Mag (1CEC)) and (ii) hexadecyltrimethylammonium bromide (HDTAB-MagCTA (2.5CEC)). Evaluation of the properties of the PMMANC1 and PMMANC2 nanocomposites are carried out using different physicochemical techniques. The results obtained by XRD, transmission electron microscopy reveal that the modified maghnite are well dispersed in the matrix and significant improvements in thermal properties are observed from thermal analysis. The Young module, impact resistance and tensile strength of the nanocomposites incorporating 5% organoargile are the most effective compared to the two synthesis processes.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135446281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 : 2023-01-01DOI: 10.56042/ijct.v30i5.5203
The present research work entails the process simulation of biodiesel production on a large scale using the ASPEN process simulator. Catalytic transesterification and non-catalytic supercritical mode of transesterification are simulated with experimental results and compared to determine the efficient mode of transesterification under different initial feedstock raw material conditions. It is found that the supercritical method (280℃; 276.4 atm; 42:1 for alcohol and oil ratio) is efficient in terms of cost and product quality for the feedstocks with high Free Fatty Acid (FFA) content. For feedstocks with a negligible amount of FFA, alkali-catalyzed homogeneous transesterification (60-65℃; 4atm; 6:1- alcohol: oil ratio) is efficient in terms of product quality and yield although the cost is similar to that of the supercritical mode of transesterification. Pre-treatment steps like simple esterification and glycerolysis for high FFA-contained feedstocks are studied using the ASPEN simulation to understand better the overall process by which the pre-treatment is carried out. Finally, the combustion characteristics of the biodiesel blend along with n-heptane (a surrogate for Petro-diesel) are studied using the Python scripted Cantera combustion chamber and it is found that the amount of soot and carbon monoxide emission is very less indicating complete and efficient combustion. This simulation study is carried out with the help of DWSIM simulation software.
{"title":"Comprehensive analysis and process simulation of biodiesel production from biomass sources","authors":"","doi":"10.56042/ijct.v30i5.5203","DOIUrl":"https://doi.org/10.56042/ijct.v30i5.5203","url":null,"abstract":"The present research work entails the process simulation of biodiesel production on a large scale using the ASPEN process simulator. Catalytic transesterification and non-catalytic supercritical mode of transesterification are simulated with experimental results and compared to determine the efficient mode of transesterification under different initial feedstock raw material conditions. It is found that the supercritical method (280℃; 276.4 atm; 42:1 for alcohol and oil ratio) is efficient in terms of cost and product quality for the feedstocks with high Free Fatty Acid (FFA) content. For feedstocks with a negligible amount of FFA, alkali-catalyzed homogeneous transesterification (60-65℃; 4atm; 6:1- alcohol: oil ratio) is efficient in terms of product quality and yield although the cost is similar to that of the supercritical mode of transesterification. Pre-treatment steps like simple esterification and glycerolysis for high FFA-contained feedstocks are studied using the ASPEN simulation to understand better the overall process by which the pre-treatment is carried out. Finally, the combustion characteristics of the biodiesel blend along with n-heptane (a surrogate for Petro-diesel) are studied using the Python scripted Cantera combustion chamber and it is found that the amount of soot and carbon monoxide emission is very less indicating complete and efficient combustion. This simulation study is carried out with the help of DWSIM simulation software.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"269 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135444883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 : 2023-01-01DOI: 10.56042/ijct.v30i5.5194
The rheological behaviour of nanofluids is an important specification that has a substantial impact on the system performance. The effect of an inclined magnetic field on mixed convection in a square cavity through a porous medium has been numerically investigated in the current paper. Various levels of thermal conductivity have been maintained on each wall throughout the system. Additionally, the Cattaneo-Christov heat flow model is influenced in the energy equation. The conservation equations for primary, secondary, and mass momentum, energy, and nanoparticles with wall boundary conditions are dimensionless and coupled to proper scaling transformations. To address the dimensionless nonlinear coupled boundary value problem, a finite-difference computing methodology known as the Harlow-Welch Marker and Cell (MAC) method is used. The fundamental goal of this research is to look at the rheological behaviour of nanoparticles as base fluids in the aforementioned effects. The influence of factors on the physical framework such as Richardson number (Ri), Hartmann number (Ha), Darcy number (Da), Reynolds number (Re), and Prandtl number (Pr) is investigated graphically. The MATLAB software is used to obtain streamlined and isothermal contours. The findings indicate an enhancement in the average Nusselt number with an increase in the parameters. Furthermore, the presence of nanoparticles raises the average Nusselt number for low values of the Reynolds number. The system is analyzed with three convection stages of Richardson number, and it is also found that for mixed convection, the system holds better results. The obtained outcomes are compared with well-known existing findings to validate the present work.
{"title":"Magneto-hybrid nanofluid (〖Al〗_2 O_3 / Cu-Oil) flow in a porous square enclosure with Cattaneo-Christov heat flow model-sensitivity analysis","authors":"","doi":"10.56042/ijct.v30i5.5194","DOIUrl":"https://doi.org/10.56042/ijct.v30i5.5194","url":null,"abstract":"The rheological behaviour of nanofluids is an important specification that has a substantial impact on the system performance. The effect of an inclined magnetic field on mixed convection in a square cavity through a porous medium has been numerically investigated in the current paper. Various levels of thermal conductivity have been maintained on each wall throughout the system. Additionally, the Cattaneo-Christov heat flow model is influenced in the energy equation. The conservation equations for primary, secondary, and mass momentum, energy, and nanoparticles with wall boundary conditions are dimensionless and coupled to proper scaling transformations. To address the dimensionless nonlinear coupled boundary value problem, a finite-difference computing methodology known as the Harlow-Welch Marker and Cell (MAC) method is used. The fundamental goal of this research is to look at the rheological behaviour of nanoparticles as base fluids in the aforementioned effects. The influence of factors on the physical framework such as Richardson number (Ri), Hartmann number (Ha), Darcy number (Da), Reynolds number (Re), and Prandtl number (Pr) is investigated graphically. The MATLAB software is used to obtain streamlined and isothermal contours. The findings indicate an enhancement in the average Nusselt number with an increase in the parameters. Furthermore, the presence of nanoparticles raises the average Nusselt number for low values of the Reynolds number. The system is analyzed with three convection stages of Richardson number, and it is also found that for mixed convection, the system holds better results. The obtained outcomes are compared with well-known existing findings to validate the present work.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135446280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 : 2023-01-01DOI: 10.56042/ijct.v30i5.5211
Graphitic carbon nitride (g-C3N4), as a fascinating conjugated polymer, has been the hotspot in science as a metal-free and visible-light-responsive photocatalyst. Pure g-C3N4 suffers from insufficient sunlight absorption, low surface area and the fast recombination of photo-induced electron-hole pairs, resulting in low photocatalytic activity. Utilizing the thermal polymerization process, metal-doped g-C3N4 has been formed and the formed catalysts employed for the degradation of methyl orange under visible light. The produced catalysts have been examined using a variety of characterisation techniques and by experimental means. The lowering of band gap and improved photocatalytic activity of the as-prepared catalyst is resulted by metal doping.
{"title":"Metal doping in g-C3N4 and tuning of band-gap for dye degradation using visible light","authors":"","doi":"10.56042/ijct.v30i5.5211","DOIUrl":"https://doi.org/10.56042/ijct.v30i5.5211","url":null,"abstract":"Graphitic carbon nitride (g-C3N4), as a fascinating conjugated polymer, has been the hotspot in science as a metal-free and visible-light-responsive photocatalyst. Pure g-C3N4 suffers from insufficient sunlight absorption, low surface area and the fast recombination of photo-induced electron-hole pairs, resulting in low photocatalytic activity. Utilizing the thermal polymerization process, metal-doped g-C3N4 has been formed and the formed catalysts employed for the degradation of methyl orange under visible light. The produced catalysts have been examined using a variety of characterisation techniques and by experimental means. The lowering of band gap and improved photocatalytic activity of the as-prepared catalyst is resulted by metal doping.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135446773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 : 2023-01-01DOI: 10.56042/ijct.v30i6.4392
This study investigates the impact of magnesium oxide nanoparticles on the performance, combustion, and emissions characteristics of spirulina algae methyl ester biodiesel in a low heat rejection (LHR) engine. The cylinder head and piston of the engine are coated with a 200-micron layer of lanthanum aluminate. The results indicate promising outcomes with biodiesel in the LHR engine, showing improved thermal efficiency and reduced specific fuel consumption compared to conventional diesel engines. Tests have been conducted on B20, B20+25 ppm of MgO, and B20+50 ppm of MgO biodiesel blends with coated and untreated components. The coated piston with B20+50 ppm of MgO (LHR) demonstrate a 1.73% increase in brake thermal efficiency and a 7.2% decrease in specific fuel consumption compared to an untreated piston. Furthermore, the B20+50 ppm of MgO (LHR) in B20 experience a 5.9% reduction in-cylinder pressure and a 6.9% decrease in heat release rate. Additionally, the coated engine exhibit lower CO, HC, and smoke emissions from the biodiesel blends than the conventional engine.
{"title":"An investigation of characteristics of a diesel engine with low heat rejection fuelled by spirulina algae biodiesel","authors":"","doi":"10.56042/ijct.v30i6.4392","DOIUrl":"https://doi.org/10.56042/ijct.v30i6.4392","url":null,"abstract":"This study investigates the impact of magnesium oxide nanoparticles on the performance, combustion, and emissions characteristics of spirulina algae methyl ester biodiesel in a low heat rejection (LHR) engine. The cylinder head and piston of the engine are coated with a 200-micron layer of lanthanum aluminate. The results indicate promising outcomes with biodiesel in the LHR engine, showing improved thermal efficiency and reduced specific fuel consumption compared to conventional diesel engines. Tests have been conducted on B20, B20+25 ppm of MgO, and B20+50 ppm of MgO biodiesel blends with coated and untreated components. The coated piston with B20+50 ppm of MgO (LHR) demonstrate a 1.73% increase in brake thermal efficiency and a 7.2% decrease in specific fuel consumption compared to an untreated piston. Furthermore, the B20+50 ppm of MgO (LHR) in B20 experience a 5.9% reduction in-cylinder pressure and a 6.9% decrease in heat release rate. Additionally, the coated engine exhibit lower CO, HC, and smoke emissions from the biodiesel blends than the conventional engine.","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135661273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 : 2023-01-01DOI: 10.56042/ijct.v30i1.68837
{"title":"Entropy generation on chemically reactive hydromagnetic oscillating flow of third grade nanofluid in a porous channel with Cattaneo-Christov heat flux","authors":"","doi":"10.56042/ijct.v30i1.68837","DOIUrl":"https://doi.org/10.56042/ijct.v30i1.68837","url":null,"abstract":"","PeriodicalId":13388,"journal":{"name":"Indian Journal of Chemical Technology","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70701281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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