Petroleum Chemistry最新文献_第3页

Formation of Titanium Dioxide by Hydrolysis Catalyst: Effect of Calcination Temperature on Microstructure Characteristics of Polymeric Nanocomposites 水解催化剂制备二氧化钛：煅烧温度对聚合纳米复合材料微观结构特征的影响

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-07-11 DOI: 10.1134/S0965544125040061

Rasheed Lateef Jawad, Raghad Subhi Abbas

{"title":"Formation of Titanium Dioxide by Hydrolysis Catalyst: Effect of Calcination Temperature on Microstructure Characteristics of Polymeric Nanocomposites","authors":"Rasheed Lateef Jawad, Raghad Subhi Abbas","doi":"10.1134/S0965544125040061","DOIUrl":"10.1134/S0965544125040061","url":null,"abstract":" In this study, titanium dioxide (TiO2) nanoparticles were prepared hydrolysis and condensation process. To obtain the anatase and rutile phases, the prepared product was subjected to a calcination process at a temperature of 400 and 700°C. Nanocomposites were adjusted from polymer blend of polyvinyl alcohol (PVA), polyethylene glycol (PEG), and polyvinylpyrrolidone (PVP) as a matrix with specific percentages (PVA 60, PEG 10, and PVP 5 wt %), and different concentrations (0 and 25 wt %) of TiO2 NPs in the anatase and rutile phases. Several description techniques like X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), and energy dispersive spectroscopy (EDS) are utilized to investigate the impact of temperature on the crystalline size, crystalline phase, and shape of produced TiO2 nanoparticles. XRD patterns show the presence of sharp peaks which proved that it had high degree of crystallization. The anatase phase formation occurs at 400°C, while the transition to rutile phase occurred at 700°C as a result of calcination process. The crystallite size was determined using the Scherer and Williamson‒Hall (W‒H) equations, micro-strain, degree of crystallinity, volume of the unit cell, and dislocation. An increase in calcination temperature leads to increase in both crystalline size and degree of crystallinity. FE-SEM micrographs reveal that increasing the temperature led to rise the size of TiO2 nanoparticles. In the anatase phase, the particles exhibit a spherical shape, while in the rutile phase they often have a prismatic shape. The calcination at 700°C is considered more desirable and applicable, because of the incorporation of rutile with anatase—the heterophase—into the crystal structure. It leads to synergistic effects between the two crystal structures due to increased thermodynamic stability, which makes it effective in photodegradation of various pollutants in the environment.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"65 5","pages":"566 - 575"},"PeriodicalIF":1.1,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145121793","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 and Breaking Conditions of Water-In-Oil Emulsions Based on Crude Oil from the Tailakovskoye Oil Field 泰拉科夫斯科耶油田原油油包水乳状液特征及破乳条件

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-07-04 DOI: 10.1134/S0965544125600456

L. V. Ivanova, V. N. Koshelev, A. V. Dengaev, M. S. Sidibe

{"title":"Characteristics and Breaking Conditions of Water-In-Oil Emulsions Based on Crude Oil from the Tailakovskoye Oil Field","authors":"L. V. Ivanova, V. N. Koshelev, A. V. Dengaev, M. S. Sidibe","doi":"10.1134/S0965544125600456","DOIUrl":"10.1134/S0965544125600456","url":null,"abstract":"The physicochemical properties and group composition of crude oil from the Tailakovskoye oil field were examined. As the temperature was lowered from 50 to 10°C, the structural and mechanical properties of the 20, 40, 60, and 70% water-in-oil emulsions (WOEs) of this oil were characterized and investigated. The mean molecular weights and spectral characteristics were evaluated for the resins and asphaltenes isolated both from the crude oil under study and from the stabilizing layers of the emulsions. The average molecule of the stabilizing layer asphaltenes was found to have a higher molecular weight than that of the parent oil asphaltenes. It was further shown that the WOE viscosity abruptly increases with rising water cut, especially at low temperatures: at 10°C the viscosity of the 70% WOE exceeded that of the parent crude oil by a factor of over 50. This is associated with the strengthening of the protective interfacial films surrounding water droplets. The emulsion stabilizers were found to mainly consist of asphaltenes. IR spectroscopy showed that the asphaltenes isolated from the stabilizing layer had a greater content of condensed and aliphatic moieties than the resins and asphaltenes from the parent crude oil. Finally, the effect of ultrasonic treatment on the dispersion of the WOEs was investigated for different water contents. The greatest sonication effect was observed for the WOEs with high water cuts.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"65 6","pages":"696 - 703"},"PeriodicalIF":1.1,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073746","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

Thermal Degradation of the Organic Matter of High-Carbon Domanik Carbonate–Siliceous Rock in Supercritical Water in the Presence of Hydrogen Donors and Ni–Fe Catalyst 超临界水中高碳Domanik碳酸盐-硅质岩有机质在供氢剂和Ni-Fe催化剂存在下的热降解

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-07-04 DOI: 10.1134/S0965544125600353

G. P. Kayukova, Z. R. Nasyrova, A. N. Mikhailova, Ya. V. Onishchenko, A. V. Vakhin

{"title":"Thermal Degradation of the Organic Matter of High-Carbon Domanik Carbonate–Siliceous Rock in Supercritical Water in the Presence of Hydrogen Donors and Ni–Fe Catalyst","authors":"G. P. Kayukova, Z. R. Nasyrova, A. N. Mikhailova, Ya. V. Onishchenko, A. V. Vakhin","doi":"10.1134/S0965544125600353","DOIUrl":"10.1134/S0965544125600353","url":null,"abstract":"The effect of hydrogen donors, tetralin and 1-propanol, and of the Ni–Fe catalyst in combination with 1-propanol on the thermal degradation of the organic matter of the carbonate–siliceous rock from the Romashkino field with 7.07% Corg content in supercritical water at 374°С and pressures from 18 to 24 MPa was revealed. 1-Propanol, compared to tetralin, influences the kerogen degradation in supercritical water more efficiently and suppresses the coking. The degradation of alkyl chains of the organic matter to form saturated hydrocarbons occurs in the presence of 1-propanol most intensely. Introduction of 1-propanol into the reaction system in combination with the Ni–Fe catalyst initiates the kerogen degradation to liquid petroleum fractions to a lesser extent but activates the condensation leading to the formation of large amounts of carbenes/carboids and coke. Depending on introduction of various additives into the reaction system, the most significant differences are observed in the structural-group composition of resins in which the ratio of the СН3/СН2 groups decreases and the content of oxygen-containing S=O, С=О, and О–Н groups increases as the extent of condensation of their structure decreases. In contrast to resins, the degree of aromaticity and degree of condensation of asphaltenes increase owing to an increase in the number of hydrogen atoms in the structure of the rings. A common trend for asphaltenes and resins in all the experiments is an increase in the content of hydroxyl О–Н groups. The carbenes/carboids are characterized by relatively low content of aliphatic CH2 and CH3 groups and oxygen-containing СО groups and by high degrees of aromaticity and condensation of their structure.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"65 6","pages":"721 - 731"},"PeriodicalIF":1.1,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073747","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

Dual-Zeolite Catalysts for Synthesis of Liquid Hydrocarbon Fuels 合成液态烃燃料的双沸石催化剂

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-07-04 DOI: 10.1134/S0965544125600791

M. A. Zubkova, S. I. Sulima, A. A. Chemes, I. N. Zubkov, D. A. Ponomarev, R. E. Yakovenko

引用次数: 0

Catalytic Properties of Unsupported Catalysts Based on Transition Metal Phosphides in Hydrotreating of Pyrolysis Products of Chlorinated Polymer Wastes 过渡金属磷化物无负载催化剂在氯化聚合物废弃物热解产物加氢处理中的催化性能

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-06-30 DOI: 10.1134/S0965544125600894

E. G. Dzhabarov, N. N. Petrukhina, E. M. Zakharyan

{"title":"Catalytic Properties of Unsupported Catalysts Based on Transition Metal Phosphides in Hydrotreating of Pyrolysis Products of Chlorinated Polymer Wastes","authors":"E. G. Dzhabarov, N. N. Petrukhina, E. M. Zakharyan","doi":"10.1134/S0965544125600894","DOIUrl":"10.1134/S0965544125600894","url":null,"abstract":"Nickel, cobalt, molybdenum, tungsten, and iron phosphides were prepared in situ from oil-soluble precursors and red phosphorus in the presence of a chlorinated substrate, 1,4-dichlorobenzene. Their catalytic activity was studied in competing processes of the hydrogenolysis of model feedstock containing a chlorinated derivative (1,4-dichlorobenzene) and heteroatomic compounds (benzothiophene, guaiacol, terephthalic acid, quinoline). Analysis of the phase composition of the catalysts by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) confirmed the formation of the phases of the metal phosphides, chlorides, and phosphates. The activity of the phosphides in the 1,4-dichlorobenzene hydrodechlorination increases in the order Mo < Fe < W < Co < Ni, and that in the joint process of 1,4-dichlorobenzene hydrodechlorination and benzothiophene hydrodesulfurization, in the order Co < W < Fe ≈ Ni < Mo. In the hydrodechlorination of 1,4-dichlorobenzene in a mixture with guaiacol, the activity of all the phosphides except iron phosphide decreases as compared to the 1,4-dichlorobenzene hydrodechlorination in the single-component system. Iron phosphide shows promise as a protective bed catalyst in the hydrotreating of polymer waste pyrolysis products, and nickel phosphide, as a catalyst for the hydrotreating of products formed by pyrolysis of polyvinyl chloride in polymer waste mixtures.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"65 3","pages":"286 - 297"},"PeriodicalIF":1.1,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145145650","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 MFI Zeolite Crystal Size on Its Catalytic Performance in Toluene Disproportionation MFI分子筛晶粒尺寸对甲苯歧化催化性能的影响

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-06-30 DOI: 10.1134/S0965544125600833

D. O. Bachurina, O. A. Ponomareva, A. P. Dubtsova, I. I. Ivanova

引用次数: 0

Influence of the Structural Type of Zeolites on the Physicochemical and Catalytic Properties of NiMo Sulfide Catalysts in the Hydrotreating of Triglyceride Feedstock 沸石结构类型对硫化镍催化剂加氢处理甘油三酯理化及催化性能的影响

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-06-30 DOI: 10.1134/S0965544125600900

N. A. Vinogradov, E. A. Ardakova, M. Yu. Talanova, N. A. Sinikova, E. A. Mustakimova, A. A. Pimerzin, A. V. Vutolkina

{"title":"Influence of the Structural Type of Zeolites on the Physicochemical and Catalytic Properties of NiMo Sulfide Catalysts in the Hydrotreating of Triglyceride Feedstock","authors":"N. A. Vinogradov, E. A. Ardakova, M. Yu. Talanova, N. A. Sinikova, E. A. Mustakimova, A. A. Pimerzin, A. V. Vutolkina","doi":"10.1134/S0965544125600900","DOIUrl":"10.1134/S0965544125600900","url":null,"abstract":"NiMo sulfide catalysts supported on zeolites of various structural types were prepared by incipient wetness impregnation. The materials, supports, and catalysts based on them were characterized by low-temperature nitrogen adsorption, energy-dispersive X-ray fluorescence analysis, Fourier IR spectroscopy of adsorbed pyridine, and transmission electron microscopy. The catalytic properties of the systems in the hydrodeoxygenation/hydroisomerization of the triglyceride feedstock were studied using a fixed-bed flow-through reactor at T = 280–340°С, P = 4 MPa, hydrogen to feed ratio H/F of 600 nl/l, and liquid hourly space velocity LHSV of 1–2 h–1. For all the catalytic systems irrespective of the support type, the degree of deoxygenation reaches 100%, and at T = 320°С and LHSV = 1 h–1 the relative content of alkane isomerization products decreases in the order NiMoS/A (SiO2/Al2O3 = 30) > NiMoS/B (SiO2/Al2O3 = 300) > NiMoS/D (SiO2/Al2O3 = 30) > NiMoS/C (SiO2/Al2O3 = 48).","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"65 3","pages":"304 - 312"},"PeriodicalIF":1.1,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145145256","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

CuO/ZnO/Al2O3 Catalyst for High-Performance Conversion of Carbon Monoxide under High Gas Loads 高气体负荷下一氧化碳高效转化CuO/ZnO/Al2O3催化剂

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-06-30 DOI: 10.1134/S0965544125600754

N. A. Ovchinnikov, A. A. Smirnova, G. O. Dolotov, T. E. Nadtoka, R. N. Rumyantsev, N. E. Gordina

{"title":"CuO/ZnO/Al2O3 Catalyst for High-Performance Conversion of Carbon Monoxide under High Gas Loads","authors":"N. A. Ovchinnikov, A. A. Smirnova, G. O. Dolotov, T. E. Nadtoka, R. N. Rumyantsev, N. E. Gordina","doi":"10.1134/S0965544125600754","DOIUrl":"10.1134/S0965544125600754","url":null,"abstract":"A high-copper CuO/ZnO/Al2O3 catalyst was synthesized by the oxalate technique. The catalyst prepared in this manner was distinguished by a narrow mesopore size distribution (3.5–8.5 nm) as well as by well-developed specific and active surface areas (140 and 95 m2/g, respectively). Its catalytic activity and selectivity were tested in a flow-type setup under near-industrial process conditions. A variety of characterization methods such as X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), low-temperature nitrogen adsorption, and chemisorption analysis were used to identify the composition and physicochemical properties of the catalyst. The data obtained demonstrate the catalyst’s high performance in processing CO-rich gas mixtures. An investigation of the process selectivity at 210°C showed that methanol is the predominant byproduct and that its concentration correlates with the CO concentration in the gas feed. In terms of catalytic performance, the synthesized catalyst is comparable to its available commercial counterparts.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"65 3","pages":"259 - 267"},"PeriodicalIF":1.1,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145145310","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

Catalytic Activity of CoMo Sulfide Catalysts Supported on Natural and Synthetic Aluminosilicates in Hydrodesulfurization of 4,6-Dimethyldibenzothiophene 天然和合成硅酸铝负载的CoMo硫化物催化剂在4,6-二甲基二苯并噻吩加氢脱硫中的催化活性

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-06-30 DOI: 10.1134/S0965544125600778

N. A. Vinogradov, V. I. Elizarova, V. A. Klimovskii, E. S. Abramov, G. O. Zasypalov, E. M. Smirnova, A. V. Vutolkina, A. A. Pimerzin, A. P. Glotov

引用次数: 0

Hydroisomerization of n-Hexadecane over Pt/SAPO-11 and Pt/SAPO-41 Molecular Sieves Differing in Crystal Morphology and Size 正十六烷在Pt/SAPO-11和Pt/SAPO-41分子筛上的加氢异构化

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-06-30 DOI: 10.1134/S096554412560081X

D. V. Serebrennikov, N. A. Filippova, Z. R. Fayzullina, E. S. Mescheryakova, B. I. Kutepov, D. Sh. Sabirov, M. R. Agliullin

引用次数: 0