Petroleum Chemistry最新文献_第5页

Extractive Desulfurization of Light Vacuum Gas Oil in a Mini-Channel 轻真空瓦斯油在小通道内的萃取脱硫

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-05-21 DOI: 10.1134/S0965544124602461

O. N. Katasonova, M. E. Shnaider, T. А. Maryutina

{"title":"Extractive Desulfurization of Light Vacuum Gas Oil in a Mini-Channel","authors":"O. N. Katasonova, M. E. Shnaider, T. А. Maryutina","doi":"10.1134/S0965544124602461","DOIUrl":"10.1134/S0965544124602461","url":null,"abstract":"The extractive desulfurization of the light vacuum gas oil has been investigated in a mini-channel reactor. The influence of operating and geometrical parameters of mini-channel on the flow pattern of two immiscible phases and efficiency of a sulfur extraction from a petroleum product has been studied. Using N-methyl-2-pyrrolidone as a solvent, it was possible to remove up to 50% of sulfur from light vacuum gas oil in a mini-channel within 20–50 s. The extraction efficiency of benzo- and dibenzothiophene homologues from petroleum feedstock was investigated in mini-channels of various internal diameter (0.5, 1, and 1.6 mm) and length (from 10 to 300 сm) within the range of total flow velocities of 0.01–0.1 m/s. Different flow configurations (slug, slug-drop, annular, wavy annular) were observed in the mini-channel. It was shown that the values of a sulfur extraction efficiency for the slug and annular flow regimes were close for the same retention time. However, compared to the slug flow, the volumetric mass transfer coefficient for the annular flow regime decreased significantly as the mini-channel length (retention time) increased. In total, 75% of sulfur compounds can be extracted from light vacuum gas oil by a multi-stage extraction in a mini-channel.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"65 2","pages":"157 - 167"},"PeriodicalIF":1.1,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167920","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

Effects of Aqueous Phase Composition on the Stability of Water-In-Oil Emulsions 水相组成对油包水乳状液稳定性的影响

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-05-16 DOI: 10.1134/S0965544125600365

Yu. V. Loskutova, N. V. Yudina

引用次数: 0

Conversion of Methanol to Hydrocarbons over Nd/B-Modified Dealuminated HZSM-5 Nd/ b改性脱铝HZSM-5上甲醇制烃的研究

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-05-07 DOI: 10.1134/S0965544125600699

E. S. Mammadov, F. Sh. Kerimli, N. F. Akhmedova, A. Z. Mamedova, S. E. Mammadov

{"title":"Conversion of Methanol to Hydrocarbons over Nd/B-Modified Dealuminated HZSM-5","authors":"E. S. Mammadov, F. Sh. Kerimli, N. F. Akhmedova, A. Z. Mamedova, S. E. Mammadov","doi":"10.1134/S0965544125600699","DOIUrl":"10.1134/S0965544125600699","url":null,"abstract":"A series of catalysts were obtained by dealumination of an HZSM-5 zeolite followed by modification with neodymium and/or boron. These samples were tested in the conversion of methanol to hydrocarbons to enhance selectivity towards C2–C4 olefins, and especially towards propylene. X-ray diffraction analysis, low-temperature nitrogen adsorption, and ammonia temperature-programmed desorption were employed to characterize the acidic properties and microporous structure of the modified catalysts. The methanol conversion was carried out in a plug-flow fixed-bed reactor at atmospheric pressure and temperatures of 250–550°C in a nitrogen flow. It is shown that dealumination and bimetal modification significantly increase the mesopore volume, facilitate the dispersion of the modifier’s particles on the external surface and in the pores of the zeolite, and markedly reduce the density of strong acid sites. The highest selectivity towards C2–C4 olefins (82.3%) and the highest propylene selectivity (52.4%) were achieved at 500°C in the presence of the bimetal-modified dealuminated catalyst (4%Nd-4%B-DHZSM-5). The high selectivity towards light olefins and propylene are attributed to the fact that dealumination and bimetal modification provide a significant increase in the ratio of mesopore volume to total pore volume and a reduction in the density of strong acid sites.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"65 4","pages":"460 - 466"},"PeriodicalIF":1.1,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162833","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

Homocondensation of Acetone over Cation-Exchanged Granulated Hierarchical Yh Zeolites 丙酮在阳离子交换的粒状分级Yh沸石上的同缩合反应

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-05-07 DOI: 10.1134/S0965544125600663

V. Yu. Kirsanov, L. F. Korzhova, S. G. Karchevsky, A. N. Khazipova, B. I. Kutepov, N. G. Grigor’eva

{"title":"Homocondensation of Acetone over Cation-Exchanged Granulated Hierarchical Yh Zeolites","authors":"V. Yu. Kirsanov, L. F. Korzhova, S. G. Karchevsky, A. N. Khazipova, B. I. Kutepov, N. G. Grigor’eva","doi":"10.1134/S0965544125600663","DOIUrl":"10.1134/S0965544125600663","url":null,"abstract":"The catalytic performance (activity and selectivity) of a FAU-type hierarchical NaYh zeolite, as well as of a series of modified samples, was investigated in the homocondensation of acetone. The modified samples were prepared from NaYh by ion exchange of Na+ for cations of alkali (Li+, K+), alkaline-earth (Ca2+, Mg2+), transition (Co2+, Ni2+), and rare-earth (La3+) metals, as well as by decationation (H-NaYh, HYh). The predominantly acidic zeolites (Ca-NaYh, Mg-NaYh, Co-NaYh, Ni-NaYh, La-NaYh, H-NaYh, and HYh) promoted the formation of acetic acid and mesitylene even at 250°C. The zeolites that contained alkali metal cations (Na+, Li+, and K+) exhibited activity only when the temperature was elevated. Starting from 350°C, NaYh and Li-NaYh promoted the formation of acetic acid. In contrast, the performance of K-NaYh under heating was characterized by the absence of acetic acid formation and a smooth increase in the selectivity towards isophorone (up to 23%) and mesitylene (up to 18%). Over the range of 400–450°C, in the presence of K-NaYh, secondary isophorone transformations were intensified, resulting in the formation of 3,5-xylenol as the main product with a selectivity of 32%.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"65 4","pages":"415 - 422"},"PeriodicalIF":1.1,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162924","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

Membrane Methods of Isolation and Separation of Rare Earth Elements (A Review) 稀土元素的膜分离方法（综述）

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-05-06 DOI: 10.1134/S0965544125600237

E. S. Dmitrieva, T .S. Anokhina, G. S. Tsebrikova, T. He, V. E. Baulin, A. V. Volkov, A. Yu. Tsivadze

{"title":"Membrane Methods of Isolation and Separation of Rare Earth Elements (A Review)","authors":"E. S. Dmitrieva, T .S. Anokhina, G. S. Tsebrikova, T. He, V. E. Baulin, A. V. Volkov, A. Yu. Tsivadze","doi":"10.1134/S0965544125600237","DOIUrl":"10.1134/S0965544125600237","url":null,"abstract":"Constant growth of industry demand for rare earth elements (REE) makes it urgent to develop more efficient approaches to their production not only from mineral ores, but also from secondary sources. Thus, promising alternative sources of REE are their aqueous solutions, such as, for example, wastewater from hydrometallurgy, leaching solutions of metallurgical slags, acidic effluents of mine drainage, acidic solutions formed during recovery of valuable elements from microelectronic boards and magnets. Membrane methods of separation of liquid media allow both concentration of the sum of REEs and, most importantly, isolation of individual REEs. This review focuses on a variety of membrane methods applicable to REE recovery. It includes a brief description of the principle of each type of membrane separation and summarizes information on the use of each specific method for solving REE extraction problems. In addition, the review considers some methods of modeling of REE membrane separation, which is important due to the presence of dozens of parameters on which the final efficiency of the developed membranes depends.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"65 2","pages":"113 - 156"},"PeriodicalIF":1.1,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162786","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

Effects of Ultrasonic Treatment on the Properties and Interfacial Composition of High-Viscosity Oil Emulsions 超声处理对高粘度油乳剂性能及界面组成的影响

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-04-29 DOI: 10.1134/S0965544125600286

G. I. Volkova, E. Yu. Smirnova

引用次数: 0

Catalytic Activity of Tandem Catalysts in CO2 Hydrogenation to Olefins Depending on Component Arrangement 串联式催化剂对CO2加氢制烯烃的催化活性与组分排列的关系

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-04-29 DOI: 10.1134/S0965544125600675

G. K. Ivanov, A. A. Maerle, D. O. Bachurina, T. M. Roshchina, I. I. Ivanova

引用次数: 0

Low-Temperature Methane Conversion over Single-Atom Photocatalysts (a Review) 单原子光催化剂的低温甲烷转化研究进展

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-04-24 DOI: 10.1134/S096554412560047X

N. N. Ezhova, K. B. Golubev, Yu. M. Snatenkova, N. V. Kolesnichenko

{"title":"Low-Temperature Methane Conversion over Single-Atom Photocatalysts (a Review)","authors":"N. N. Ezhova, K. B. Golubev, Yu. M. Snatenkova, N. V. Kolesnichenko","doi":"10.1134/S096554412560047X","DOIUrl":"10.1134/S096554412560047X","url":null,"abstract":"Single-atom catalysts (SACs) are the latest generation of nanoheterogeneous catalysts. They consist of active metal sites dispersed into single atoms on the surface of a solid support and, thus, exhibit unique catalytic performance including enhanced activity and high selectivity. Semiconductor materials are used to prepare single-atom photocatalysts designed for photo-driven chemical processes, generally without external heating. Photoinduced low-temperature methane conversion over SAC-based photocatalysts offers new prospects for methane chemistry. This review summarizes, systematizes, and analyzes recent publications on dry reforming of methane (DRM) and nonoxidative coupling of methane (NOCM) in the presence of single-atom photocatalysts. Despite the unfavorable thermodynamics of these types of reactions over wide ranges of low and high temperatures, they can be carried out at room temperature under photocatalytic conditions. The review discusses the performance of SACs in photoinduced DRM and NOCM compared to heterogeneous nanocatalysts. It further provides a comparative assessment of the SAC behaviors in DRM and NOCM under photocatalytic and conventional thermocatalytic conditions.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"65 3","pages":"227 - 247"},"PeriodicalIF":1.1,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144795","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

Green Diesel Desulfurization Process in a Basket Reactor over Eco-Friendly Tin Oxide–ZSM-5 Zeolite 环保型氧化锡- zsm -5沸石篮反应器中柴油绿色脱硫工艺研究

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-04-24 DOI: 10.1134/S0965544124601996

Jasim I. Humadi, Liqaa I. Saeed, Ghassan Hassan Abdul Razzaq, Mohamed A. Habila, Rajesh Haldhar

{"title":"Green Diesel Desulfurization Process in a Basket Reactor over Eco-Friendly Tin Oxide–ZSM-5 Zeolite","authors":"Jasim I. Humadi, Liqaa I. Saeed, Ghassan Hassan Abdul Razzaq, Mohamed A. Habila, Rajesh Haldhar","doi":"10.1134/S0965544124601996","DOIUrl":"10.1134/S0965544124601996","url":null,"abstract":"This study is related to the preparation of an environmentally friendly ZSM-5 zeolite catalyst from waste materials for the process of diesel desulfurization. This material was tested for catalytic performance under different conditions including variations in the temperature, initial sulfur concentration (IC), and reaction time. The optimized synthesis at a temperature of 170°C and crystallization time of 96 h yielded ZSM-5 zeolite with a high BET (Brunauer, Emmett, and Teller) surface area and excellent thermal stability. The SnO2 addition further enhanced the catalyst performance without changing its structure. Desulfurization experiments were performed using a green oxidizer, hydrogen peroxide (H2O2), at four different temperatures, namely, 25, 50, 75, and 100°C, and at three sulfur concentrations (300, 450, and 600 ppm). The obtaned results showed that sulfur removal efficiency increased as the temperature, IC, and reaction time increased, reaching the maximum (93.33%) at 100°C, IC equal to 600 ppm, and reaction time of 100 min. Thus, SnO2-modified ZSM-5 was shown to be an environmentally friendly and highly active catalyst for the diesel desulfurization processes under adjusted precise reaction conditions.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"65 2","pages":"178 - 189"},"PeriodicalIF":1.1,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145168053","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

Commercial Production of Bitumen via Oxidation of Vacuum Residue over Iron Catalysts 真空渣油在铁催化剂上氧化生产沥青的研究

IF 1.1 4区工程技术

Petroleum Chemistry Pub Date : 2025-04-21 DOI: 10.1134/S0965544125600596

V. M. Abbasov, L. M. Afandiyeva, Yu. P. Cherepnova, G. G. Nasibova, N. M. Aliyeva, S. F. Ahmadbayova, A. M. Mammadov, A. S. Lyadov

{"title":"Commercial Production of Bitumen via Oxidation of Vacuum Residue over Iron Catalysts","authors":"V. M. Abbasov, L. M. Afandiyeva, Yu. P. Cherepnova, G. G. Nasibova, N. M. Aliyeva, S. F. Ahmadbayova, A. M. Mammadov, A. S. Lyadov","doi":"10.1134/S0965544125600596","DOIUrl":"10.1134/S0965544125600596","url":null,"abstract":"This study investigates the effects of introducing a feedstock-soluble catalyst based on iron salts of petroleum acids on the oxidation of crude oil vacuum residue (VR) to produce commercial bitumen. It is demonstrated that, compared to noncatalytic VR oxidation, injecting the catalyst into the petroleum feedstock provides a higher process efficiency (indicated by more than double the oxidation rate) with the bitumen product being distinguished by enhanced thermal stability and a higher ductility (>100 cm). IR spectroscopy showed a difference in the structural-group composition between the initial VR and the oxidation product, specifically an aromaticity increase and the formation of polysubstituted aromatics in the oxidate. Due to the acceleration of the oxidation process and the improvement of the product quality, the catalytic oxidation of VR provides a high potential for the implementation of this process strategy at industrial oil refineries. Furthermore, this approach can be recommended as the optimal available technique for mitigating the anthropogenic environmental impact.","PeriodicalId":725,"journal":{"name":"Petroleum Chemistry","volume":"65 3","pages":"298 - 303"},"PeriodicalIF":1.1,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144272","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