Pub Date : 2024-05-18DOI: 10.1134/s0965544124010110
L. Atyaksheva, I. Dobryakova, Z. S. Enbaev, T. M. Roshchina, D. Fedosov
{"title":"Kinetic Relationships of the Adsorption of Lysozyme and Bovine Serum Albumin onto Zeolites of BEA and MFI Structural Types","authors":"L. Atyaksheva, I. Dobryakova, Z. S. Enbaev, T. M. Roshchina, D. Fedosov","doi":"10.1134/s0965544124010110","DOIUrl":"https://doi.org/10.1134/s0965544124010110","url":null,"abstract":"","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141125458","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 : 2024-05-14DOI: 10.1134/s0965544124010134
E. S. Mammadov, T. O. Gahramanov, N. F. Akhmedova, S. E. Mammadov, A. Z. Mamedova, E. I. Ahmadov
Abstract
The study describes toluene ethylation using TsVM zeolite (SiO2/Al2O3 = 40) and a series of TsVM-based catalysts modified with rare-earth metals. To investigate the effects of the type and loading of rare-earth metals in the HTsVM catalyst on the selectivity towards total ethyltoluenes and p-ethyltoluene, the reaction was carried out in a continuous-flow fixed-bed reactor at atmospheric pressure and temperatures of 300–400°C. The HTsVM was modified with praseodymium, ytterbium, and holmium nitrates. The physicochemical and textural properties of the catalysts were characterized by XRD, FTIR spectroscopy, NH3-TPD, and low-temperature nitrogen adsorption. The specific surface area, acidity, total pore volume, and mesopore volume were found to decrease with an increase in the holmium loading of the catalyst. The zeolite catalysts loaded with 4.0–5.0 wt % Ho exhibited optimum stability and high p-ethyltoluene selectivity (79.5–81.4%) in combination with adequate toluene conversion (19.4–20.3%).
{"title":"Effects of the Type and Loading of Rare-Earth Metals (Pr, Yb, Ho) on the para-Selectivity of HTsVM Zeolite in Toluene Ethylation","authors":"E. S. Mammadov, T. O. Gahramanov, N. F. Akhmedova, S. E. Mammadov, A. Z. Mamedova, E. I. Ahmadov","doi":"10.1134/s0965544124010134","DOIUrl":"https://doi.org/10.1134/s0965544124010134","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The study describes toluene ethylation using TsVM zeolite (SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> = 40) and a series of TsVM-based catalysts modified with rare-earth metals. To investigate the effects of the type and loading of rare-earth metals in the HTsVM catalyst on the selectivity towards total ethyltoluenes and <i>p</i>-ethyltoluene, the reaction was carried out in a continuous-flow fixed-bed reactor at atmospheric pressure and temperatures of 300–400°C. The HTsVM was modified with praseodymium, ytterbium, and holmium nitrates. The physicochemical and textural properties of the catalysts were characterized by XRD, FTIR spectroscopy, NH<sub>3</sub>-TPD, and low-temperature nitrogen adsorption. The specific surface area, acidity, total pore volume, and mesopore volume were found to decrease with an increase in the holmium loading of the catalyst. The zeolite catalysts loaded with 4.0–5.0 wt % Ho exhibited optimum stability and high <i>p</i>-ethyltoluene selectivity (79.5–81.4%) in combination with adequate toluene conversion (19.4–20.3%).</p>","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140938333","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 : 2024-05-14DOI: 10.1134/s0965544124010031
I. D. Timoshina, L. S. Borisova, V. R. Livshits
Abstract
The study compares the elemental composition of asphaltenes with the parameters of hydrocarbon biomarkers and Precambrian insoluble organic matter (OM) of the Aldan–Maya depression. The elemental composition of the asphaltenes was found to depend on the pyrolytic characteristics of the OM. Using asphaltene compositions in combination with biomarker parameters, the genetic and catagenetic features of difficult-to-study objects such as Precambrian bitumens can be characterized more accurately and reliably. The elemental composition of the asphaltenes was shown to correlate with the aromatic parameters that reflect the OM maturity. In contrast, the parameters of the asphaltenes show essentially no correlation with biomarker data for the saturated components.
摘要 该研究将沥青质的元素组成与阿尔丹-马亚凹陷的碳氢化合物生物标志物和前寒武纪不溶性有机物（OM）的参数进行了比较。研究发现，沥青质的元素组成取决于有机质的热解特征。将沥青质成分与生物标记参数相结合，可以更准确、更可靠地描述前寒武纪沥青质等难以研究对象的遗传和成因特征。研究表明，沥青质的元素组成与反映 OM 成熟度的芳烃参数相关。相反，沥青质的参数与饱和成分的生物标记数据基本没有关联。
{"title":"Geochemistry of Biomarkers and Asphaltenes of Precambrian Organic Matter in the Aldan–Maya Depression (Siberian Platform)","authors":"I. D. Timoshina, L. S. Borisova, V. R. Livshits","doi":"10.1134/s0965544124010031","DOIUrl":"https://doi.org/10.1134/s0965544124010031","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The study compares the elemental composition of asphaltenes with the parameters of hydrocarbon biomarkers and Precambrian insoluble organic matter (OM) of the Aldan–Maya depression. The elemental composition of the asphaltenes was found to depend on the pyrolytic characteristics of the OM. Using asphaltene compositions in combination with biomarker parameters, the genetic and catagenetic features of difficult-to-study objects such as Precambrian bitumens can be characterized more accurately and reliably. The elemental composition of the asphaltenes was shown to correlate with the aromatic parameters that reflect the OM maturity. In contrast, the parameters of the asphaltenes show essentially no correlation with biomarker data for the saturated components.</p>","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140938542","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 : 2024-05-14DOI: 10.1134/s0965544124020038
N. G. Grigor’eva, V. Yu. Kirsanov, L. F. Korzhova, S. G. Karchevskii, A. N. Khazipova, S. V. Bubennov, V. R. Bikbaeva, D. V. Serebrennikov, B. I. Kutepov
Abstract
The physicochemical properties of a series of catalysts based on granulated Na-Yh zeolite with the hierarchic (micro–meso–macro) pore structure (Na-Yh, HNa-Yh, MgO/Na-Yh, La2O3/Na-Yh, TiO2/Na-Yh) and the activity and selectivity of these catalysts in isophorone aromatization were studied. MgO/Na-Yh and La2O3/Na-Yh zeolites with high content of basic sites and low content of Brønsted acid sites are the most effective in the synthesis of 3,5-dimethylphenol: The 3,5-dimethylphenol formation selectivity reaches 63–69% at 87–94% isophorone conversion. In the presence of Na-Yh zeolite containing both acid and base sites, the prevalent reactions are isophorone isomerization and synthesis of trimethylbenzenes. The modification of Na-Yh with titanium oxide leads to an increase in the content of acid sites on the TiO2/Na-Yh surface and to the prevalence of the aromatization to form trimethylbenzenes. In the presence of HNa-Yh containing a set of the strongest Brønsted and Lewis acid sites, isophorone transforms into a mixture of polymethylbenzenes.
{"title":"Metal-Containing Granulated Yh Zeolites with Hierarchic Structure in Isophorone Aromatization","authors":"N. G. Grigor’eva, V. Yu. Kirsanov, L. F. Korzhova, S. G. Karchevskii, A. N. Khazipova, S. V. Bubennov, V. R. Bikbaeva, D. V. Serebrennikov, B. I. Kutepov","doi":"10.1134/s0965544124020038","DOIUrl":"https://doi.org/10.1134/s0965544124020038","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The physicochemical properties of a series of catalysts based on granulated Na-Yh zeolite with the hierarchic (micro–meso–macro) pore structure (Na-Yh, HNa-Yh, MgO/Na-Yh, La<sub>2</sub>O<sub>3</sub>/Na-Yh, TiO<sub>2</sub>/Na-Yh) and the activity and selectivity of these catalysts in isophorone aromatization were studied. MgO/Na-Yh and La<sub>2</sub>O<sub>3</sub>/Na-Yh zeolites with high content of basic sites and low content of Brønsted acid sites are the most effective in the synthesis of 3,5-dimethylphenol: The 3,5-dimethylphenol formation selectivity reaches 63–69% at 87–94% isophorone conversion. In the presence of Na-Yh zeolite containing both acid and base sites, the prevalent reactions are isophorone isomerization and synthesis of trimethylbenzenes. The modification of Na-Yh with titanium oxide leads to an increase in the content of acid sites on the TiO<sub>2</sub>/Na-Yh surface and to the prevalence of the aromatization to form trimethylbenzenes. In the presence of HNa-Yh containing a set of the strongest Brønsted and Lewis acid sites, isophorone transforms into a mixture of polymethylbenzenes.</p>","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140938404","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 : 2024-05-14DOI: 10.1134/s0965544124020063
A. Kh. Ishkildina, O. S. Travkina
Abstract
The paper describes synthesis of ZSM-5 zeolite using two amorphous synthetic aluminosilicates prepared by different methods: one involved precipitation from solutions of sodium silicate and aluminum sulfate, and the other was based on sol–gel synthesis using tetraethyl orthosilicate and aluminum nitrate. The method for the preparation of amorphous aluminosilicates was shown to affect the morphology, dispersion, and porous structure of ZSM-5 crystals.
{"title":"Effects of the Method for the Preparation of Synthetic Aluminosilicate on the Properties of ZSM-5","authors":"A. Kh. Ishkildina, O. S. Travkina","doi":"10.1134/s0965544124020063","DOIUrl":"https://doi.org/10.1134/s0965544124020063","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The paper describes synthesis of ZSM-5 zeolite using two amorphous synthetic aluminosilicates prepared by different methods: one involved precipitation from solutions of sodium silicate and aluminum sulfate, and the other was based on sol–gel synthesis using tetraethyl orthosilicate and aluminum nitrate. The method for the preparation of amorphous aluminosilicates was shown to affect the morphology, dispersion, and porous structure of ZSM-5 crystals.</p>","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140938550","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 : 2024-05-14DOI: 10.1134/s0965544124010092
M. R. Agliullin, D. V. Serebrennikov, A. N. Khazipova, R. Z. Kuvatova, B. I. Kutepov
Abstract
Using a combination of XRD, 27Al and 31P MAS NMR, SEM, TEM, N2 low-temperature adsorption–desorption, and IR spectroscopy of adsorbed pyridine, the effects of gel preparation conditions on the properties of the SAPO-11 molecular sieves crystallized from the gels were investigated. It was demonstrated that the crystal morphology and the characteristics of secondary pores of SAPO-11 molecular sieves can be controlled by adjusting the sequence in which the initial components are mixed during gel preparation. The synthesized micro–mesoporous SAPO-11 samples exhibited high selectivity in the hydroisomerization of n-hexadecane.
{"title":"Effects of Gel Preparation Conditions on the Crystallization of SAPO-11 Molecular Sieves","authors":"M. R. Agliullin, D. V. Serebrennikov, A. N. Khazipova, R. Z. Kuvatova, B. I. Kutepov","doi":"10.1134/s0965544124010092","DOIUrl":"https://doi.org/10.1134/s0965544124010092","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Using a combination of XRD, <sup>27</sup>Al and <sup>31</sup>P MAS NMR, SEM, TEM, N<sub>2</sub> low-temperature adsorption–desorption, and IR spectroscopy of adsorbed pyridine, the effects of gel preparation conditions on the properties of the SAPO-11 molecular sieves crystallized from the gels were investigated. It was demonstrated that the crystal morphology and the characteristics of secondary pores of SAPO-11 molecular sieves can be controlled by adjusting the sequence in which the initial components are mixed during gel preparation. The synthesized micro–mesoporous SAPO-11 samples exhibited high selectivity in the hydroisomerization of <i>n</i>-hexadecane.</p>","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140938334","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 : 2024-05-14DOI: 10.1134/s0965544124020129
E. D. Zhirnova, O. S. Travkina
Abstract
The study proposes a novel approach for the synthesis of granular MCM-22 zeolite with a hierarchical micro–meso–macroporous structure. This approach is based on the crystallization of zeolite granules consisting of powdered MCM-22 and synthetic amorphous aluminosilicate. The synthesized material had 97% crystallinity and volumes of micro-, meso-, and macropores of 0.18, 0.22, and 0.46 cm3/g, respectively. The H-form of the hierarchical MCM-22 exhibited high activity and selectivity in dimerization of α-methylstyrene.
{"title":"Synthesis of Granular MCM-22 Zeolite with a Hierarchical Porous Structure","authors":"E. D. Zhirnova, O. S. Travkina","doi":"10.1134/s0965544124020129","DOIUrl":"https://doi.org/10.1134/s0965544124020129","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The study proposes a novel approach for the synthesis of granular MCM-22 zeolite with a hierarchical micro–meso–macroporous structure. This approach is based on the crystallization of zeolite granules consisting of powdered MCM-22 and synthetic amorphous aluminosilicate. The synthesized material had 97% crystallinity and volumes of micro-, meso-, and macropores of 0.18, 0.22, and 0.46 cm<sup>3</sup>/g, respectively. The H-form of the hierarchical MCM-22 exhibited high activity and selectivity in dimerization of α-methylstyrene.</p>","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140938545","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 : 2024-04-18DOI: 10.1134/s0965544123110087
V. S. Pavlov, D. V. Bruter, V. L. Zholobenko, I. I. Ivanova
Abstract
This review presents the current understanding of the effects of the physicochemical properties of molecular sieve catalysts on their deactivation in methanol-to-hydrocarbons conversion. The catalysts are classified on the basis of the composition of the so-called hydrocarbon pool and the catalyst deactivation rate during methanol conversion. For each group of catalysts, the correlations of their physicochemical properties with their catalytic performance, coke formation, and deactivation behaviors are discussed.
{"title":"Effects of the Physicochemical Properties of Zeolite Catalysts on Their Deactivation in Methanol-to-Hydrocarbons Conversion (A Review)","authors":"V. S. Pavlov, D. V. Bruter, V. L. Zholobenko, I. I. Ivanova","doi":"10.1134/s0965544123110087","DOIUrl":"https://doi.org/10.1134/s0965544123110087","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This review presents the current understanding of the effects of the physicochemical properties of molecular sieve catalysts on their deactivation in methanol-to-hydrocarbons conversion. The catalysts are classified on the basis of the composition of the so-called hydrocarbon pool and the catalyst deactivation rate during methanol conversion. For each group of catalysts, the correlations of their physicochemical properties with their catalytic performance, coke formation, and deactivation behaviors are discussed.</p>","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140610935","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 : 2024-04-18DOI: 10.1134/s0965544124010067
I. A. Kostyukov, O. A. Ponomareva, Yu. G. Kolyagin, M. I. Petz, O. V. Shutkina, T. O. Bok, I. I. Ivanova
Abstract
The physicochemical properties of BEA zeolites with SiO2/Al2O3 ratios of about 40–50 and 200–250 synthesized in fluoride and alkaline media have been characterized, and their catalytic activity have been tested in liquid-phase disproportionation of toluene. It has been found that samples with a close SiO2/Al2O3 ratio obtained by fluoride synthesis have a smaller number of acid sites. The samples with lower SiO2/Al2O3 ratios exhibite a higher activity in toluene disproportionation than the samples with lower Al content, regardless of the synthesis method. The BEA zeolites that have Al atoms in the T6 positions of the framework which are more active. Synthesis in an alkaline medium promotes the localization of aluminum at the T6 position.
{"title":"Effects of Synthesis Method on the Localization of Aluminum Atoms and on Catalytic Performance of BEA Zeolite in Toluene Disproportionation","authors":"I. A. Kostyukov, O. A. Ponomareva, Yu. G. Kolyagin, M. I. Petz, O. V. Shutkina, T. O. Bok, I. I. Ivanova","doi":"10.1134/s0965544124010067","DOIUrl":"https://doi.org/10.1134/s0965544124010067","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The physicochemical properties of BEA zeolites with SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratios of about 40–50 and 200–250 synthesized in fluoride and alkaline media have been characterized, and their catalytic activity have been tested in liquid-phase disproportionation of toluene. It has been found that samples with a close SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratio obtained by fluoride synthesis have a smaller number of acid sites. The samples with lower SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratios exhibite a higher activity in toluene disproportionation than the samples with lower Al content, regardless of the synthesis method. The BEA zeolites that have Al atoms in the T6 positions of the framework which are more active. Synthesis in an alkaline medium promotes the localization of aluminum at the T6 position.</p>","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140611076","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 : 2024-04-18DOI: 10.1134/s0965544124010122
Mohammed T. Naser, Asawer A. Alwasiti, Riyadh S Almukhtar, Mazin J. Shibeeb
Abstract
Considering the lifespan of wells and the increment of water production over time, which is associated with the increase in emulsion volumes, the need for technology able to overcome these challenges becomes paramount. In this study, the flow characteristics of a nanoparticle-stabilized water-oil emulsion were investigated for different nanoparticle concentrations and water fraction. The influence of different concentrations of silica dioxide nanoparticles on the pipeline flow behavior of emulsions was studied in a 13-m horizontal pipe with the inlet diameter of 0.0145 m. The effect of nano-silica (1, 3, and 5 wt %) on the emulsion stability, rheological type, viscosity, and pressure drop as well as on the energy consumption (for the water volume ratios of 35 and 50% v/v) was also investigated. The study showed that as the water cut increased, the viscosity of the produced oil increased proportionally to the water/oil volume ratio. Use of nanoadditives provided the viscosity reduction for two water cuts (35 and 50%). In the case of a 50% water cut, addition of 3% of nano-silica provided the most significant trend in reducing viscosity. In the case of addition of 1% nano-silica to a 35% water cut, the viscosity level decreased, and the shear-thinning behavior was observed for all the prepared emulsions. Nevertheless, the most significant amount of stable emulsion was produced at a water ratio of 35%, when a 3% nano-silica was added. The results also show that the addition of nanoparticles caused a decrease in the pressure drop, and the addition of 3% of nano-silica resulted in a highly stable emulsion and increased power consumption by a pump.
{"title":"Experimental Investigation of the Nanoparticle Effect on the Pipeline Flow Behavior of Emulsions","authors":"Mohammed T. Naser, Asawer A. Alwasiti, Riyadh S Almukhtar, Mazin J. Shibeeb","doi":"10.1134/s0965544124010122","DOIUrl":"https://doi.org/10.1134/s0965544124010122","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Considering the lifespan of wells and the increment of water production over time, which is associated with the increase in emulsion volumes, the need for technology able to overcome these challenges becomes paramount. In this study, the flow characteristics of a nanoparticle-stabilized water-oil emulsion were investigated for different nanoparticle concentrations and water fraction. The influence of different concentrations of silica dioxide nanoparticles on the pipeline flow behavior of emulsions was studied in a 13-m horizontal pipe with the inlet diameter of 0.0145 m. The effect of nano-silica (1, 3, and 5 wt %) on the emulsion stability, rheological type, viscosity, and pressure drop as well as on the energy consumption (for the water volume ratios of 35 and 50% v/v) was also investigated. The study showed that as the water cut increased, the viscosity of the produced oil increased proportionally to the water/oil volume ratio. Use of nanoadditives provided the viscosity reduction for two water cuts (35 and 50%). In the case of a 50% water cut, addition of 3% of nano-silica provided the most significant trend in reducing viscosity. In the case of addition of 1% nano-silica to a 35% water cut, the viscosity level decreased, and the shear-thinning behavior was observed for all the prepared emulsions. Nevertheless, the most significant amount of stable emulsion was produced at a water ratio of 35%, when a 3% nano-silica was added. The results also show that the addition of nanoparticles caused a decrease in the pressure drop, and the addition of 3% of nano-silica resulted in a highly stable emulsion and increased power consumption by a pump.</p>","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140610932","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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