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Assessment of Structural Changes in Resins and Asphaltenes Depending on the Duration of Cracking Using Structural Group Analysis 利用结构群分析方法评估树脂和沥青质的结构变化取决于开裂持续时间
IF 0.9 4区 工程技术
Solid Fuel Chemistry Pub Date : 2025-06-14 DOI: 10.3103/S0361521925700119
G. S. Pevneva, N. G. Voronetskaya, A. V. Goncharov
{"title":"Assessment of Structural Changes in Resins and Asphaltenes Depending on the Duration of Cracking Using Structural Group Analysis","authors":"G. S. Pevneva,&nbsp;N. G. Voronetskaya,&nbsp;A. V. Goncharov","doi":"10.3103/S0361521925700119","DOIUrl":"10.3103/S0361521925700119","url":null,"abstract":"<p>Changes in the structural parameters of secondary resins and asphaltenes formed upon the cracking of asphaltenes, resins, and their mixture were assessed at different process durations. Resins and asphaltenes isolated from heavy methane oil of the Zyuzeevskoye oil field (Tatarstan) and their mixture were cracked in a batch reactor at 450°C for 60, 90, and 120 min. With increasing the duration of resin and asphaltene cracking, condensation reactions leading to an increase in the yield of coke and the formation of low-molecular-weight highly aromatic secondary resin and asphaltene molecules accelerated. It was found that the directions of thermal transformations of resin and asphaltene molecules were similar. The joint presence of resins and asphaltenes in the mixture changed the direction of their thermal transformations in the course of cracking, which was reflected in the quantitative data on the mass balance and structural parameters of secondary resins and asphaltenes formed upon the cracking of a mixture of resins with asphaltenes. Differences in the structural characteristics of resins and asphaltenes formed upon the cracking of single-component samples and their mixture were revealed.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"59 3","pages":"240 - 246"},"PeriodicalIF":0.9,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164914","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}
引用次数: 0
Microstructure of Asphaltenes of Bituminous Oils 沥青质的微观结构
IF 0.9 4区 工程技术
Solid Fuel Chemistry Pub Date : 2025-06-14 DOI: 10.3103/S0361521925700065
E. Yu. Kovalenko, T. V. Cheshkova, K. A. Cherednichenko, T. A. Sagachenko, R. S. Min
{"title":"Microstructure of Asphaltenes of Bituminous Oils","authors":"E. Yu. Kovalenko,&nbsp;T. V. Cheshkova,&nbsp;K. A. Cherednichenko,&nbsp;T. A. Sagachenko,&nbsp;R. S. Min","doi":"10.3103/S0361521925700065","DOIUrl":"10.3103/S0361521925700065","url":null,"abstract":"<p>The microstructure and functional compositions of the asphaltenes of bituminous oils from the Ashalchinskoye (Permian), Usinskoye (Permo-Carboniferous), and Nurlatskoye (Devonian) oil fields and their high- and low-molecular-weight components were studied using infrared spectroscopy, scanning electron microscopy, and transmission electron microscopy. It was shown that asphaltenes from the Ashalchinskoye oil were characterized by a smooth surface, while asphaltenes from the Usinskoye and Nurlatskoye oils had rough and porous surfaces. The sizes of asphaltene nanoaggregates from the Usinskoye and Nurlatskoye oils were smaller than those of the Ashalchinskoye oil. At the same time, asphaltene nanoaggregates from the Ashalchinskoye and Nurlatskoye fields formed a disordered tangled structure. A distinctive feature of asphaltenes from the Usinskoye oil was the presence of more ordered layers characteristic of crystal-like formations. Asphaltenes of Ashalchinskoye and Nurlatskoye oils were characterized by increased degrees of aromaticity and branching of aliphatic substituents in their macromolecules and a high relative concentration of fragments with a sulfoxide group. Their high-molecular-weight asphaltenes were less aromatic than low-molecular-weight ones, and their composition had a lower tentative concentration of carbonyl and sulfoxide groups. In the structure of asphaltenes form the Usinskoye oil, the fraction of aliphatic fragments and fragments containing a carbonyl group was increased. High-molecular-weight asphaltenes of this oil also contained fewer sulfoxide and carbonyl groups but more aromatic fragments than their low-molecular-weight asphaltenes.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"59 3","pages":"204 - 211"},"PeriodicalIF":0.9,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164921","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}
引用次数: 0
Hydrocarbon Composition of the Products of Thermal and Catalytic Cracking of Asphaltenes Obtained in Supercritical Water 超临界水中沥青质热裂化及催化裂化产物的碳氢化合物组成
IF 0.9 4区 工程技术
Solid Fuel Chemistry Pub Date : 2025-06-14 DOI: 10.3103/S0361521925700107
Kh. V. Nal’gieva, G. S. Pevneva, N. G. Voronetskaya, M. A. Kopytov
{"title":"Hydrocarbon Composition of the Products of Thermal and Catalytic Cracking of Asphaltenes Obtained in Supercritical Water","authors":"Kh. V. Nal’gieva,&nbsp;G. S. Pevneva,&nbsp;N. G. Voronetskaya,&nbsp;M. A. Kopytov","doi":"10.3103/S0361521925700107","DOIUrl":"10.3103/S0361521925700107","url":null,"abstract":"<p>The hydrocarbon composition of oils from asphaltene cracking products was studied. The experiments were carried out in three different modes: without additives (a control experiment without water and catalyst), in supercritical water without catalyst, and in supercritical water with an iron oxide–based catalyst. Cracking was carried out in a reactor at 450°C; the experiment duration was 60 min, and the catalyst was obtained in situ from iron(III) tris(acetylacetonate). Individual hydrocarbon composition of oils isolated from cracking products was determined by gas chromatography–mass spectrometry (GC–MS) analysis using a Shimadzu GCMS-QP5050A quadrupole system. The hydrocarbon composition of asphaltene cracking products obtained in supercritical water differed in qualitative and quantitative characteristics from the products obtained without water. Upon asphaltene cracking in water, the composition changed significantly compared to that in the control experiment, and an increase in the fraction of saturated hydrocarbons was noted. In cracking products obtained in an aqueous medium with the addition of a catalyst, saturated hydrocarbons also predominated, while the concentration of phthalates, alkenes, and sulfur-containing compounds increased significantly.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"59 3","pages":"227 - 233"},"PeriodicalIF":0.9,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164913","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}
引用次数: 0
Comparative Evaluation of Oil-Displacing Capability of a New Chemical Composition Based on DES and Surfactants and That of the IPC-PRO Composition 基于DES和表面活性剂的新型化学组合物与IPC-PRO组合物驱油性能的比较评价
IF 0.9 4区 工程技术
Solid Fuel Chemistry Pub Date : 2025-06-14 DOI: 10.3103/S036152192570003X
M. R. Sholidodov, V. V. Kozlov, L. K. Altunina, A. R. Saidentsal
{"title":"Comparative Evaluation of Oil-Displacing Capability of a New Chemical Composition Based on DES and Surfactants and That of the IPC-PRO Composition","authors":"M. R. Sholidodov,&nbsp;V. V. Kozlov,&nbsp;L. K. Altunina,&nbsp;A. R. Saidentsal","doi":"10.3103/S036152192570003X","DOIUrl":"10.3103/S036152192570003X","url":null,"abstract":"<p>The article presents the results of a comparative evaluation of the oil-displacing capacity of a new composition based on deep eutectic solvents (DESs) and surfactants with that of the IPC-PRO composition developed previously at the Institute of Petroleum Chemistry, Siberian Branch, Russian Academy of Sciences. Laboratory simulation of the oil displacement process for heavy oil from the Usinskoye field using models of a heterogeneous formation with a carbonate reservoir type showed that both compositions had high oil-displacing capacity in a wide temperature range to open up the possibility of their use at any stage of oilfield development.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"59 3","pages":"188 - 192"},"PeriodicalIF":0.9,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164924","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}
引用次数: 0
Effect of Ultrasonic Treatment Conditions on the Properties of Water-in-Oil Emulsions 超声处理条件对油包水乳剂性能的影响
IF 0.9 4区 工程技术
Solid Fuel Chemistry Pub Date : 2025-06-14 DOI: 10.3103/S0361521925700077
G. I. Volkova, E. Yu. Smirnova
{"title":"Effect of Ultrasonic Treatment Conditions on the Properties of Water-in-Oil Emulsions","authors":"G. I. Volkova,&nbsp;E. Yu. Smirnova","doi":"10.3103/S0361521925700077","DOIUrl":"10.3103/S0361521925700077","url":null,"abstract":"<p>The effect of ultrasonic treatment modes on the microstructure and structural and rheological properties of oil emulsions with distilled water and formation water was studied. The emulsions were treated in an ultrasonic field (frequency, 22 kHz; intensity, 2, 6, and 18 W/cm<sup>2</sup>). The microstructure of the emulsions was analyzed using an AXIO LAB.A1 optical microscope (Carl Zeiss, Germany). The analysis of variances of the micrographs of the emulsions was performed to reveal the effect of the treatment conditions and the type of dispersed phase on the mean droplet diameter, dispersion, and position of the peak of water droplet size distribution in the emulsion. The rheological parameters of the emulsions before and after ultrasonic treatment were measured using a HAAKE Viscotester iQ rheometer (Thermo Scientific, the United States). For highly viscous oil with a high content of resin–asphaltene components, the degree of dispersion of water droplets decreased after pulsed ultrasonic treatment at a field intensity 6 W/cm<sup>2</sup> in two modes (5 cycles with 10 s of operation and 10 s of rest; 10 cycles with 5 s of operation and 5 s of rest).</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"59 3","pages":"212 - 219"},"PeriodicalIF":0.9,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164922","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}
引用次数: 0
Thermotropic Plugging Material for Strengthening Rocks and Preventing Liquid and Steam Breakthroughs in Oil Mines 石油矿山固岩防液、防汽突破的热致性封堵材料
IF 0.9 4区 工程技术
Solid Fuel Chemistry Pub Date : 2025-06-14 DOI: 10.3103/S0361521925700016
L. K. Altunina, I. V. Kuvshinov, V. A. Kuvshinov, L. A. Stasyeva, V. V. Kozlov
{"title":"Thermotropic Plugging Material for Strengthening Rocks and Preventing Liquid and Steam Breakthroughs in Oil Mines","authors":"L. K. Altunina,&nbsp;I. V. Kuvshinov,&nbsp;V. A. Kuvshinov,&nbsp;L. A. Stasyeva,&nbsp;V. V. Kozlov","doi":"10.3103/S0361521925700016","DOIUrl":"10.3103/S0361521925700016","url":null,"abstract":"<p>The results of laboratory studies and pilot tests of plugging materials developed by the authors' team for eliminating steam and water breakthroughs from rock mass into oil mine workings and for filling voids in the rock mass in places where steam breakthroughs occurred are presented. Conclusions on the influence of individual components of the compositions, which allowed them to be combined to achieve the required properties of the material, were made. The tests were carried out at an experimental section of the Yaregskoye oil mine, and they showed the effectiveness of the developed materials. It is planned to further develop this work, including testing the developed plugging compositions for surface steam injection wells.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"59 3","pages":"175 - 181"},"PeriodicalIF":0.9,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165341","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}
引用次数: 0
Preparation of Cryogels from Aqueous Solutions of Polyvinyl Alcohol and Their Physicochemical and Rheological Properties 聚乙烯醇水溶液制备低温冰箱及其理化和流变性能
IF 0.9 4区 工程技术
Solid Fuel Chemistry Pub Date : 2025-06-14 DOI: 10.3103/S0361521925700028
V. N. Manzhai
{"title":"Preparation of Cryogels from Aqueous Solutions of Polyvinyl Alcohol and Their Physicochemical and Rheological Properties","authors":"V. N. Manzhai","doi":"10.3103/S0361521925700028","DOIUrl":"10.3103/S0361521925700028","url":null,"abstract":"<p>A mechanism is proposed for the cryostructuring of aqueous solutions of polyvinyl alcohol, that is, for converting the solutions from a fluid state into elastic bodies (cryogels). In addition to the theoretical justification for the mechanism, experimental results of rheological and spectroscopic studies of the resulting cryogels are also presented. An explanation is given for the significant difference between the cryostructuring temperature of an aqueous solution of polyvinyl alcohol and the melting temperature of elastic cryogels formed from it.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"59 3","pages":"182 - 187"},"PeriodicalIF":0.9,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164923","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}
引用次数: 0
Changes in the Composition of Polyaromatic Hydrocarbons of Siberian Oil Shales in the Modeling of Thermal Processes 热过程模拟中西伯利亚油页岩多芳烃组成的变化
IF 0.9 4区 工程技术
Solid Fuel Chemistry Pub Date : 2025-06-14 DOI: 10.3103/S0361521925700120
I. S. Korol’, N. A. Mukhortina, D. I. Chuikina, N. A. Krasnoyarova
{"title":"Changes in the Composition of Polyaromatic Hydrocarbons of Siberian Oil Shales in the Modeling of Thermal Processes","authors":"I. S. Korol’,&nbsp;N. A. Mukhortina,&nbsp;D. I. Chuikina,&nbsp;N. A. Krasnoyarova","doi":"10.3103/S0361521925700120","DOIUrl":"10.3103/S0361521925700120","url":null,"abstract":"<p>Thus article presents the results of studies of polyaromatic hydrocarbons (PAHs) in oil shales of the Barzas (Barzassite) and Budagovo (Sapropelite) deposits and their ash residues obtained upon thermal destruction at <i>T</i> = 300, 500, and 750°C with free access of oxygen. A set of physicochemical methods of analysis (extraction, infrared spectroscopy, and high-performance liquid chromatography) made it possible to establish the composition of priority PAHs of the oil shales and track changes occurring under thermal action. As a result of this work, it was shown that the yield of oil shale ash residues depended on the initial composition of oil shales and ranged from 5 to 82 wt % depending on the destruction temperature. The PAH content of the ash residues did not exceed 9.5 rel %.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"59 3","pages":"247 - 254"},"PeriodicalIF":0.9,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165330","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}
引用次数: 0
Characteristics of Diesel Fuel Infiltration into Arctic Peat Soil 北极泥炭土柴油入渗特性研究
IF 0.9 4区 工程技术
Solid Fuel Chemistry Pub Date : 2025-06-14 DOI: 10.3103/S0361521925700132
D. V. Fedorov, O. V. Serebrennikova, N. A. Krasnoyarova, E. A. Elchaninova
{"title":"Characteristics of Diesel Fuel Infiltration into Arctic Peat Soil","authors":"D. V. Fedorov,&nbsp;O. V. Serebrennikova,&nbsp;N. A. Krasnoyarova,&nbsp;E. A. Elchaninova","doi":"10.3103/S0361521925700132","DOIUrl":"10.3103/S0361521925700132","url":null,"abstract":"<p>The infiltration of diesel fuel (DF) into an Arctic peat deposit three months after its contamination was considered. Concentration of pollutants (92%) in the upper 0–10 cm of the section was revealed. Qualitative and quantitative parameters of the distribution of DF components in peat under Arctic conditions were analyzed; they indicated a gel filtration mechanism of differentiation of DF composition in the peat deposit.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"59 3","pages":"255 - 259"},"PeriodicalIF":0.9,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164915","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}
引用次数: 0
Colloidal Dispersion Properties of Oil Emulsions in an Electromagnetic Field 油乳剂在电磁场中的胶体分散特性
IF 0.9 4区 工程技术
Solid Fuel Chemistry Pub Date : 2025-06-14 DOI: 10.3103/S0361521925700041
Yu. V. Loskutova, N. V. Yudina
{"title":"Colloidal Dispersion Properties of Oil Emulsions in an Electromagnetic Field","authors":"Yu. V. Loskutova,&nbsp;N. V. Yudina","doi":"10.3103/S0361521925700041","DOIUrl":"10.3103/S0361521925700041","url":null,"abstract":"<p>The effect of electromagnetic field on colloidal dispersion properties of water–oil emulsions of two resinous low-paraffin oils was studied. It was shown that the maximum result of water–oil emulsion stratification was achieved after 15-min treatment at frequencies of 250 and 500 Hz and voltages of 17 and 15 kV for 10 and 30 wt % emulsions, respectively. With increasing time of emulsion treatment, the size and number of droplets in the oil phase decreased, and the residual water content of the treated emulsions after stratification did not exceed 0.5 wt %. In an electromagnetic field, the drop–drop coalescence process in the emulsion was intensified due to the rapid destruction of the armor shells of water globules, the formation of new resin–asphaltene aggregates of a larger or smaller size, and the redistribution of components between the dispersion medium and the dispersed phase.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"59 3","pages":"193 - 197"},"PeriodicalIF":0.9,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164925","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}
引用次数: 0
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