Petroleum Chemistry最新文献_第2页

Asphaltenes as Modifiers of PolylactideBased Ultrafine Fibrous Sorbents for Oil Spill Response 沥青烯作为聚乳酸基超细纤维吸油剂的改性剂

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2026-09-16 DOI: 10.1134/S0965544126601006

Viktoria A. Kochetkova, Nikita V. Korostelev, Ravilya Z. Safieva, Anatoly A. Olkhov

{"title":"Asphaltenes as Modifiers of PolylactideBased Ultrafine Fibrous Sorbents for Oil Spill Response","authors":"Viktoria A. Kochetkova, Nikita V. Korostelev, Ravilya Z. Safieva, Anatoly A. Olkhov","doi":"10.1134/S0965544126601006","DOIUrl":"10.1134/S0965544126601006","url":null,"abstract":"A series of polylactide-based ultrafine fibrous nonwoven materials modified with asphaltenes were prepared by electrospinning. An examination of their properties revealed that asphaltene loading affects the properties of the initial electrospinning solutions, the fiber structure, and the oil adsorption capacity of the sorbents. The interaction between the functional groups of polylactide and asphaltenes was demonstrated using IR spectroscopy. At standard and lower temperatures, the modification of polylactide with asphaltenes enhances adsorption capacity compared to sorbents based on pure biopolymers. In polylactide/chloroform systems, asphaltenes act as structural modifiers, affecting the rheological and electrical characteristics of the solution. This results in the formation of a more extensive fibrous porous structure of the material, enhancing the accessible specific surface area and interfiber volume for oil retention. The results identify asphaltenes as a promising natural structural modifier for designing biodegradable ultrafine fibrous sorbents for oil spill response.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"66 6","pages":"709 - 718"},"PeriodicalIF":1.1,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965465","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 Thermal and Initiated Cracking on the Structure of HighMolecular-Weight Heteroatomic Components of Atmospheric Residues. Part 1: Asphaltenes 热裂解和初始裂解对大气残渣高分子量杂原子组分结构的影响。第1部分：沥青质

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2026-09-16 DOI: 10.1134/S0965544126600979

Tatiana V. Cheshkova, Raisa S. Min, Elena Yu. Kovalenko, Tatiana A. Sagachenko, Eugenia B. Golushkova

{"title":"Effect of Thermal and Initiated Cracking on the Structure of HighMolecular-Weight Heteroatomic Components of Atmospheric Residues. Part 1: Asphaltenes","authors":"Tatiana V. Cheshkova, Raisa S. Min, Elena Yu. Kovalenko, Tatiana A. Sagachenko, Eugenia B. Golushkova","doi":"10.1134/S0965544126600979","DOIUrl":"10.1134/S0965544126600979","url":null,"abstract":"Using scanning electron microscopy, Fourier transform infrared spectroscopy, structural group analysis, and chemical degradation of carbon–heteroatom bonds, this study presents a comparative macro- and microstructural examination of asphaltenes. The asphaltenes were isolated from a crude oil atmospheric residue from the Krapivinskoye field, as well as from liquids produced by thermal cracking and fly-ash-ferrosphere-initiated cracking of this residue. Asphaltenes obtained from the original atmospheric residue and its cracking products are predominantly amorphous. During cracking, the structural units of asphaltenes become more compact, mainly due to a reduction in the number of naphthenic rings within the polycyclic system. In asphaltenes from thermal cracking, the paraffin carbon atoms form short alkyl substituents, while in those from initiated cracking, they predominantly form long alkyl chains that are either linear or slightly branched. In the liquid products resulting from the chemical degradation of C–S and C–O bonds in the asphaltene macromolecules, compositionally similar nalkanes, hopanes, phenylalkanes, and ethyl nalkanoates were identified across all samples (the original residue and the products of both cracking processes). Among the Slinked fragments in the asphaltene macromolecules from thermal and initiated cracking, even-carbon-numbered nalk-1-enes were additionally detected. The introduction of a cracking additive was found to deepen asphaltene degradation at both the macro- and micromolecular levels. This is attributed to the intensification of aromatic ring condensation, the cracking of naphthenic rings in naphthene–aromatic fragments, the cracking of the resulting paraffinic chains, and the cleavage of C–S and C–O in aliphatic substituents attached to aromatic rings and in bridges linking aromatic units.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"66 6","pages":"678 - 689"},"PeriodicalIF":1.1,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965492","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

Structural and Rheological Properties of Highly Paraffinic Crude Oils Exposed to Magnetic Fields 高石蜡原油在磁场作用下的结构和流变特性

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2026-09-16 DOI: 10.1134/S0965544126600943

Valeriya A. Isanova, Yulia V. Loskutova

{"title":"Structural and Rheological Properties of Highly Paraffinic Crude Oils Exposed to Magnetic Fields","authors":"Valeriya A. Isanova, Yulia V. Loskutova","doi":"10.1134/S0965544126600943","DOIUrl":"10.1134/S0965544126600943","url":null,"abstract":"This study examines the effects of magnetic fields on the structural and rheological behavior of two highly paraffinic crude oils from the West Siberian oil-and-gas basin (Verkhne-Salatskoye and Vostochno-Kamennoye fields). The oils differed in their concentrations of n-alkanes and resin–asphaltene components (RACs), with saturate-to-RAC ratios of 25.3 and 8.2, respectively. The most pronounced improvement in rheological and energy parameters was observed for the oil with the lower ratio (8.2). Following magnetic treatment, the static viscosity of the studied samples decreased by 27 and 40%, while the intrinsic fracture energy of the dispersed system declined by 38 and 84%, respectively. We propose that magnetic treatment disrupts weak hydrogen bonds, generating additional reactive sites on paramagnetic asphaltene and diamagnetic resin molecules. The reactivity of both the whole crude oils and their isolated resins and asphaltenes was significantly altered: magnetic exposure produced species that differed not only in size and structure but also in antioxidant properties. These findings offer a pathway for the in-depth evaluation of magnetic treatment effects on the structural and rheological properties of highly paraffinic oils with varying ratios of high-molecular-weight components.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"66 6","pages":"622 - 631"},"PeriodicalIF":1.1,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965464","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 Study of Techniques Used to Determine Asphaltene Stability 沥青质稳定性测定技术的比较研究

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2026-09-16 DOI: 10.1134/S0965544126120157

Ali A. Ali

{"title":"Comparative Study of Techniques Used to Determine Asphaltene Stability","authors":"Ali A. Ali","doi":"10.1134/S0965544126120157","DOIUrl":"10.1134/S0965544126120157","url":null,"abstract":"The condition of asphaltene deposition is poorly known, creating it one of the heaviest challenging flow assurance issues in oil production. An important stage of this problem is asphaltene stability, which indicates whether the asphaltene can be precipitated from a petroleum sample. This study investigated the efficiency of many forecasting models used to evaluate asphaltene stability in the petroleum depending only on SARA (Saturate, Aromatics, Resins and Asphaltene) fractions. To identify the precision of eight models of asphaltene stability, 298 crude oil samples from various worldwide sources were examined. By exhibiting obvious distinctions in sample sorting between the models, the findings showed the impact of methodological assumptions and fundamental factors. The factors of confusion matrix were utilized to statistically evaluate each prediction model’s performance. The Colloidal Stability Index (CSI) was selected as the most reliable technique as it is showed the highest overall accuracy among all the examined models. Additionally, CSI was conducted to examine the stability condition of asphaltene in Iraqi petroleum samples, and the predicted results were matched the experimental findings because they were all prone to asphaltene precipitation (unstable samples).","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"66 8","pages":"980 - 984"},"PeriodicalIF":1.1,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176558","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

Distribution Patterns of the Main Structural-Group Parameters of Crude Oils from the Dnieper–Donets Basin Based on 1H NMR Data 基于1H NMR数据的第聂伯-顿涅茨盆地原油主要结构群参数分布规律

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2026-09-16 DOI: 10.1134/S0965544126600608

Mikhail B. Smirnov, Natalya A. Vanyukova

{"title":"Distribution Patterns of the Main Structural-Group Parameters of Crude Oils from the Dnieper–Donets Basin Based on 1H NMR Data","authors":"Mikhail B. Smirnov, Natalya A. Vanyukova","doi":"10.1134/S0965544126600608","DOIUrl":"10.1134/S0965544126600608","url":null,"abstract":"This study employs 1H NMR spectroscopy to investigate a representative set of crude oils and gas condensates from the Dnieper–Donets oil-and-gas basin (OGB). For the first time, at least the structural-group composition of crude oils is comprehensively characterized over the entire basin, with specific focus on the distribution of hydrogen across various aromatic structures, including monoaromatic rings, isolated double bonds, and aliphatic groups. Distribution density plots were generated for all measured compositional parameters. The results reveal polymodal distributions with significant deviations from normality, underscoring the need for nonparametric statistical methods—an approach rarely applied in petroleum geochemistry. Accordingly, medians and their confidence intervals are recommended over means and standard deviations. A comparative analysis with previously explored major basins shows that the Dnieper–Donets oils are compositionally closest to those of the West Siberian OGB. However, they exhibit strong statistical similarity to the Timan–Pechora OGB in terms of hydrogen content in aromatic fragments. In contrast, marked differences are observed when compared to oils from East Siberia and North Caucasus (on one side) and from the Volga–Urals region (on the other). Notably, the Dnieper–Donets OGB contains oil deposits rich in radiogenic unsaturated hydrocarbons, with the highest detected concentration corresponding to a radiation dose of approximately 6 MGy. Furthermore, certain deposits within the basin display an anomalous composition characterized by exceptionally high aromatic content, with 1H NMR spectra revealing elevated concentrations of components that are typically found only in trace amounts in crude oils.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"66 6","pages":"595 - 605"},"PeriodicalIF":1.1,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965490","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 Thermal and Initiated Cracking on the Structure of HighMolecular-Weight Heteroatomic Components of Atmospheric Residues. Part 2: Resins 热裂解和初始裂解对大气残渣高分子量杂原子组分结构的影响。第二部分：树脂

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2026-09-16 DOI: 10.1134/S0965544126600906

Tatiana V. Cheshkova, Raisa S. Min, Elena Yu. Kovalenko, Tatiana A. Sagachenko, Eugenia B. Golushkova

引用次数: 0

Effect of Diesel Composition on Light Olefin Selectivity during Deep Catalytic Cracking over Y-Zeolite Catalysts 柴油组分对y型沸石催化剂深度催化裂化中轻烯烃选择性的影响

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2026-09-02 DOI: 10.1134/S0965544126601225

Valentin R. Atlasov, Svetlana E. Boiko, Georgiy Pakhomov, Konstantin I. Dement’ev

{"title":"Effect of Diesel Composition on Light Olefin Selectivity during Deep Catalytic Cracking over Y-Zeolite Catalysts","authors":"Valentin R. Atlasov, Svetlana E. Boiko, Georgiy Pakhomov, Konstantin I. Dement’ev","doi":"10.1134/S0965544126601225","DOIUrl":"10.1134/S0965544126601225","url":null,"abstract":"This study investigates the deep catalytic cracking (DCC) of diesel fractions of various origins and compositions into light olefins over Y-zeolite-based catalysts. Product selectivity is governed by the group composition of the feedstock: the diesel enriched in isoparaffins and olefins affords the highest yield of C2–C4 olefins (38–41 wt %). Conversely, the presence of heterocyclic sulfur compounds accelerates catalyst deactivation, reducing the olefin yield to 28%. At elevated temperatures, cracking reactions markedly outpace bimolecular hydrogen transfer, with no mutual interference between hydrocarbon classes in their respective conversion routes. A comparative assessment of the model CBV720 catalyst and an industrial USY catalyst reveals similar conversion profiles and satisfactory data correlation. The achieved propylene yield (20%) is comparable to that of commercial DCC processes, confirming the viability of the proposed approach for producing petrochemical feedstocks within the Crude-Oil-To-Chemicals framework.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"66 7","pages":"807 - 818"},"PeriodicalIF":1.1,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0965544126601225.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148981338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Integrated Electrocoagulation-Adsorption Process Enhanced with Ferrite Nanoparticles for Treating High-Salinity Produced Water 纳米铁氧体强化电混凝-吸附一体化工艺处理高盐采出水

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2026-09-02 DOI: 10.1134/S0965544126120145

Najem A. Al-Rubaiey, Ali A. Ati, Mustafa R. Jaafar, Saleh M. Mohammed, Osaid J. Gharbi

{"title":"Integrated Electrocoagulation-Adsorption Process Enhanced with Ferrite Nanoparticles for Treating High-Salinity Produced Water","authors":"Najem A. Al-Rubaiey, Ali A. Ati, Mustafa R. Jaafar, Saleh M. Mohammed, Osaid J. Gharbi","doi":"10.1134/S0965544126120145","DOIUrl":"10.1134/S0965544126120145","url":null,"abstract":"Produced water, the largest waste stream in the oil and gas sector, poses significant environmental challenges due to its high salinity, hydrocarbons, and heavy metals. Current treatment methods often struggle to effectively remove salts and other contaminants, necessitating innovative, cost-effective approaches. This study investigates the integration of Electrocoagulation (EC) with Adsorption (AD) and Ferrite Nanoparticles (FNP) to enhance the treatment of high-salinity produced water from the Siba Gas Field in Iraq. The EC process was run with Al electrodes for coagulation and then FNP and clay-based adsorbents were added to enhance pollutant removal. Experimental results showed that EC alone removed less than 10% of salts. FNP addition achieved 20% salt removal, while EC-FNP combined with AD and clays such as Na-bentonite achieved 56% salt removal. The integrated process also reduced turbidity from 157 NTU to less than 1 NTU and stabilized pH and ORP. The study shows the synergy of EC-FNP and AD in treating saline wastewater, providing a promising, scalable, eco-friendly and cost-effective approach. These results provide a basis for further optimization and industrial application of EC-FNP/AD for saline wastewater in the oil and gas industry, supporting sustainable water management and environmental protection. Future work should focus on optimizing parameters, long-term performance, economic feasibility, and environmental impact for scale-up.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"66 8","pages":"967 - 979"},"PeriodicalIF":1.1,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176690","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 Aqueous-Phase Salinity on the Content and Composition of Asphaltenes Precipitated from Water-in-Oil Emulsions 水相盐度对油包水乳状液中沥青质含量和组成的影响

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2026-09-01 DOI: 10.1134/S096554412660092X

Natalia V. Yudina, Irina V. Prozorova, Yulia V. Loskutova, Alexandra N. Werner, Valeriya A. Isanova

引用次数: 0

Sulfur Speciation and Pyrolysis Behavior of Petroleum Cokes with Different Sulfur Levels from Xinjiang 新疆不同含硫量石油焦的硫形态与热解行为

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2026-09-01 DOI: 10.1134/S0965544126600621

Hongxuan Xing, Junli Xu, Jun Zhou, Tao Li, Fulu Zhao, Zhongning Shi

{"title":"Sulfur Speciation and Pyrolysis Behavior of Petroleum Cokes with Different Sulfur Levels from Xinjiang","authors":"Hongxuan Xing, Junli Xu, Jun Zhou, Tao Li, Fulu Zhao, Zhongning Shi","doi":"10.1134/S0965544126600621","DOIUrl":"10.1134/S0965544126600621","url":null,"abstract":"Petroleum cokes from Xinjiang, China, exhibit significant differences in sulfur content; however, systematic studies on sulfur speciation and pyrolysis behavior across different sulfur levels remain scarce. Herein, three typical industrial petroleum cokes—low-sulfur (Wushihua (WSH), 0.295 wt %), medium-sulfur (Balian (BL), 3.356 wt %), and high-sulfur (Tahua (TH), 4.129 wt %)—were comprehensively characterized using XRD, Raman spectroscopy, XPS, FTIR, SEM–EDS, and TG/DTG. All cokes possess a disordered microcrystalline carbon structure (graphitization degree g ≈ 0). Raman analysis revealed that BL has the highest total defect density (IDall/IG = 5.895), while TH contains the most amorphous carbon (ID3/IG = 2.129). According to XPS quantification, sulfur in WSH exists mainly as highly reactive thiol sulfur (77.07%) and sulfone sulfur, without thiophenic sulfur; BL and TH contain considerable thiophenic sulfur (32.93 and 40.46%) and inorganic sulfur. Notably, WSH, with the lowest total sulfur content, reaches its maximum weight loss rate at 541°C, earlier than BL (610°C) and TH (620°C), indicating that pyrolysis reactivity is governed by the relative proportion of active thiol to stable thiophenic sulfur rather than the total sulfur content. This study provides important theoretical insights and practical value for the clean and high-value utilization of petroleum coke in Xinjiang and the development of targeted downstream desulfurization processes.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"66 7","pages":"777 - 789"},"PeriodicalIF":1.1,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148981336","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