Firas Basim Ismail, M. Iezzul Firdaus Yuhana, Salam A. Mohammed, Laith S. Sabri
{"title":"Analytical Prediction of Gas Hydrate Formation Conditions for Oil and Gas Pipeline","authors":"Firas Basim Ismail, M. Iezzul Firdaus Yuhana, Salam A. Mohammed, Laith S. Sabri","doi":"10.1134/s107042722401004x","DOIUrl":"https://doi.org/10.1134/s107042722401004x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Oil and gas production operations, particularly those involving subsea production systems, are frequently subjected to harsh underwater conditions characterized by low temperatures and high pressures, owing to the placement of most subsea facilities on the seabed. These challenging environmental factors often lead to the formation of gas hydrates, especially in the presence of moisture within the production fluidIn this study, A suggestion is made to employ an underwater wireless sensor network (UWSN) to showcase the viability of real-time monitoring of pipeline health conditions, aiming to mitigate problems associated with hydrate formation in oil and gas pipelines. Additionally, A predictive analytical model for gas hydrate formation in these pipelines is crafted using Aspen HYSYS simulation and Feed-Forward Artificial Neural Network (ANN) modeling. The development of this prediction model and the potential application of UWSN technology in the oil and gas production field could assist operators in making informed decisions regarding intervention processes for addressing hydrate-related challenges in pipelines.</p>","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"17 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141190590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seroor Atallah Khaleefa Ali, Zaidun Naji Abudi, Mohammed Nsaif Abbas, May Ali Alsaffar, Thekra Atta Ibrahim
{"title":"Synthesis of Nano-silica Particles using Eucalyptus globulus Leaf Extract and Their Innovative Application as an Adsorbent for Malachite Green Dye","authors":"Seroor Atallah Khaleefa Ali, Zaidun Naji Abudi, Mohammed Nsaif Abbas, May Ali Alsaffar, Thekra Atta Ibrahim","doi":"10.1134/s1070427224010099","DOIUrl":"https://doi.org/10.1134/s1070427224010099","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This study explores the silicon dioxide nanoparticles (SiO<sub>2</sub>) green production via employing <i>Eucalyptus globulus</i> leaf extract and potassium metasilicate. Characterization methods, including FTIR, dynamic light scattering, SEM, Brunauer‒Emmett‒Teller analysis, and XRD. All these approaches were applied to get an in-depth comprehension of the nanoparticle’s properties. It was determined that the nanoparticles’ average size was 127 nm and 218 m<sup>2</sup>g<sup>–1</sup> surface area. In addition, the tests verified the SiO<sub>2</sub> nanoparticles’ purity and demonstrated the surface existence of many reactive groups. The effectiveness of the reactive SiO<sub>2</sub> nanoparticle groups were then assessed in a batch-mode adsorption under various operating parameters for the removal of malachite green dyes from aqueous solutions. The investigation examined the contact duration, pH, temperature, agitation speed, starting dye concentration, and quantity of nanomaterial on adsorption effectiveness. Experimental results demonstrated a remarkable removal efficiency of 96% for malachite green dye at an initial concentration of 100 ppm in the contaminated solution. Interestingly, the percentage removal exhibited an inverse relationship with dye concentration and temperature, while being directly proportional to other factors. Overall, the green-synthesized silicon dioxide nanoparticles proved to be a promising adsorbent for the effective removal of malachite green dye from aqueous environments. The results highlight the potential application of these nanoparticles in wastewater treatment and pollution mitigation, offering a sustainable and eco-friendly solution for environmental challenges.</p>","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"26 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141190710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. I. Galanov, O. I. Sidorova, O. V. Magaev, D. Yu. Savenko
{"title":"Oxalic Acid Activation of the Mechanochemical Synthesis of Copper–Zinc–Aluminum Catalysts for Steam Conversion of Carbon Monoxide","authors":"S. I. Galanov, O. I. Sidorova, O. V. Magaev, D. Yu. Savenko","doi":"10.1134/S1070427223090069","DOIUrl":"10.1134/S1070427223090069","url":null,"abstract":"<p>Catalysts for steam conversion of carbon monoxide of the composition 44 wt % CuО, 45 wt % ZnО, and 11 wt % Al<sub>2</sub>О<sub>3</sub> were prepared by the mechanochemical procedure in the presence of oxalic acid. The catalysts were tested in steam conversion of carbon monoxide. The effect of oxalic acid introduced in the course of the synthesis on the specific surface area of the catalyst samples and on the catalyst performance with respect to carbon monoxide was demonstrated.</p>","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"96 9","pages":"867 - 872"},"PeriodicalIF":0.6,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141153385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. S. Nikulin, N. S. Nikulina, E. V. Churilina, V. N. Verezhnikov
{"title":"Behavior of Cationic Surfactants in Rubber Latex Coagulation","authors":"S. S. Nikulin, N. S. Nikulina, E. V. Churilina, V. N. Verezhnikov","doi":"10.1134/S1070427223090033","DOIUrl":"10.1134/S1070427223090033","url":null,"abstract":"<p>The coagulating power of cationic surfactants differing in the length of the radicals was evaluated. Decylpyridinium chloride, dodecylpyridinium chloride, cetylpyridinium bromide, cetyltrimethylammonium bromide, and alkylbenzyldimethylammonium chloride were tested. The coagulant consumption corresponds to the consumption of the commercially used cationic polyelectrolyte, polydiallyldimethylammonium chloride. A hypothesis concerning the disturbing effect of surfactants on the aggregative stability of latex systems was put forward. The surfactant actin mechanism based on micellar-globular interaction was suggested.</p>","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"96 9","pages":"847 - 852"},"PeriodicalIF":0.6,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141153387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
O. S. Vdovina, K. V. Shirshin, D. S. Baruta, K. K. Shirshin, A. L. Esipovich, E. A. Kanakov, E. N. Generalova
{"title":"Specific Features of Positional Isomerization of α-Olefins in the Presence of Zeolite Catalysts","authors":"O. S. Vdovina, K. V. Shirshin, D. S. Baruta, K. K. Shirshin, A. L. Esipovich, E. A. Kanakov, E. N. Generalova","doi":"10.1134/S1070427223090057","DOIUrl":"10.1134/S1070427223090057","url":null,"abstract":"<p>The positional isomerization of the double bond in α-olefins of С<sub>16</sub>–С<sub>18</sub> fraction on Y-type zeolite with the faujasite-type crystal structure in the H form was studied. An increase in the silica ratio of the catalyst from 45 to 75 leads to the formation of isomerized olefins with lower congealing points. An increase in the catalyst concentration, temperature, and process time leads to the acceleration not only of the target reaction of the double bond migration but also of the side reaction of olefin oligomerization.</p>","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"96 9","pages":"861 - 866"},"PeriodicalIF":0.6,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141153386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. P. Kremenetskaya, S. N. Ivashevskaya, T. K. Ivanova, V. G. Semenov, V. P. Ilyina
{"title":"Structural and Phase Transformations in the Course of Antigorite Thermolysis","authors":"I. P. Kremenetskaya, S. N. Ivashevskaya, T. K. Ivanova, V. G. Semenov, V. P. Ilyina","doi":"10.1134/S107042722309001X","DOIUrl":"10.1134/S107042722309001X","url":null,"abstract":"<p>Virtually unlimited volumes of serpentine resources stimulate search for new procedures for its processing, including those involving thermal activation. Along with the calcination parameters (temperature, time), the crystal-chemical features of the initial serpentines are an important factor. They predetermine the sequence of the formation of new phases in the course of thermolysis and the content of these phases in the heat treatment product. The influence of the calcination temperature on the thermal decomposition of a serpentine mineral, antigorite, was studied by differential scanning calorimetry, X-ray diffraction analysis, and Mössbauer spectroscopy. Amorphous antigorite is not formed in the course of thermolysis, and the intermediate amorphous magnesia–silicate phase is a mixture of two dehydroxylates differing in the ability to react with acid solutions. The activity of the calcination products was determined by two different methods. The optimum calcination temperature is 750°C; it ensures the maximal content of the amorphous active magnesia–silicate phase.</p>","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"96 9","pages":"827 - 837"},"PeriodicalIF":0.6,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141153693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Composition, Structures, and Preparation of Smart Composite Materials Based on Polyurethane and Modified Silicon Carbide Particles with Controllable Characteristics and Kinetics of the Shape Memory Effect","authors":"T. A. Shalygina, I. D. Simonov-Emelyanov","doi":"10.1134/S1070427223090045","DOIUrl":"10.1134/S1070427223090045","url":null,"abstract":"<p>The influence of various structural types of smart dispersion-filled polymer composite materials (DFPCMs) on such shape-memory effect (SME) parameters as the shape fixation and recovery coefficients (R<sub>f</sub> and R<sub>r</sub>) and SME kinetics characterized by the rate of the initial shape recovery (υ<sub>r</sub>) was studied for the first time, with the polyurethane + modified silicon carbide (SiC) particles as example. The main dependences describing the relationship of the shape fixation and recovery coefficients (R<sub>f</sub> and R<sub>r</sub>) and of the shape recovery rate (υ<sub>r</sub>) with the generalized parameter Θ, DFPCM structural type, and surface morphology of SiC particles were found. The contribution of the specific surface area of dispersed SiC particles (S<sub>BET</sub> from 3 to 45 m<sup>2</sup> g<sup>–1</sup>) to the smart properties of the disperse systems was demonstrated for the first time.</p>","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"96 9","pages":"853 - 860"},"PeriodicalIF":0.6,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141153340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. I. Pavlenko, A. I. Gorodov, N. I. Cherkashina, D. A. Ryzhikh, A. Yu. Ruchii
{"title":"Influence of Temperature of Silicon Dioxide Powder Annealing on the Aluminum-Induced Crystallization of Polycrystalline Silicon","authors":"V. I. Pavlenko, A. I. Gorodov, N. I. Cherkashina, D. A. Ryzhikh, A. Yu. Ruchii","doi":"10.1134/S1070427223090021","DOIUrl":"10.1134/S1070427223090021","url":null,"abstract":"<p>The phase composition, structure, and size of particles and agglomerates formed by annealing of the powder obtained from hydrophobizing organosilicon liquid in the presence of aluminum powder (5–10 wt %) were studied by X-ray diffraction, Fourier IR spectroscopy, and laser granulometry. The annealing temperature varied from 550 to 700°С influences the mean size of the individual particles, and the aluminum content influences the agglomerate size. An increase in the heat treatment temperature leads to a decrease in the mean diameter of separate particles. The samples containing 10% aluminum powder have the largest agglomerate size. In turn, the formation of the polycrystalline silicon phase from the amorphous silica-containing powder system in the temperature range of solid-phase reactions depends on the particle and agglomerate size. To obtain polycrystalline silicon from samples containing coarser agglomerates, it is necessary to raise the annealing temperature at equal process time. The minimal annealing temperature for the start of the polycrystalline silicon formation was 550°С, and the required amount of aluminum powder was 5%.</p>","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"96 9","pages":"838 - 846"},"PeriodicalIF":0.6,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141153384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Activation of Nickel(II) Chloride in Liquid-Phase Synthesis of Tris(hydroxymethyl)phosphine","authors":"L. I. Grekov","doi":"10.1134/S1070427223080062","DOIUrl":"10.1134/S1070427223080062","url":null,"abstract":"<p>The possible structures of mixed-ligand NiCl<sub>2</sub> complexes and the thermodynamic parameters of the reaction of the hydroxymethylphosphine formation under the conditions of liquid-phase catalytic synthesis of tris(hydroxymethyl)phosphine were calculated by the density functional theory (DFT) using the hybrid density functional (B3LYP) and the LANL2DZ basis set, taking into account the hydration effects. The formation of the complex [NiCl<sub>2</sub>–ethylenediamine] prevents the catalyst deactivation, and the formation of the complex [NiCl<sub>2</sub>–ethylenediamine–tris(hydroxymethyl)phosphine] favors the catalyst activation.</p>","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"96 8","pages":"812 - 817"},"PeriodicalIF":0.6,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140797804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. V. Kutovaya, A. A. Aleksanova, E. M. Erdni-Goryaev, Ya. V. Lipatov, E. S. Afanas’eva, O. S. Morozov, A. V. Babkin, A. V. Kepman
{"title":"Erratum to: Enhancement of the Fracture Toughness of Carbon-Reinforced Plastics by Introducing a Thermoplastic Phase into an Epoxy Matrix","authors":"I. V. Kutovaya, A. A. Aleksanova, E. M. Erdni-Goryaev, Ya. V. Lipatov, E. S. Afanas’eva, O. S. Morozov, A. V. Babkin, A. V. Kepman","doi":"10.1134/S1070427223080104","DOIUrl":"10.1134/S1070427223080104","url":null,"abstract":"","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"96 8","pages":"826 - 826"},"PeriodicalIF":0.6,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140806820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}