World of petroleum products最新文献_第7页

Study of the kinetic regularities and mechanism of the cycloalkylation reaction of phenol with 1-methylcyclopentadiene 苯酚与1-甲基环戊二烯环烷基化反应动力学规律及机理研究

World of petroleum products Pub Date : 2022-01-01 DOI: 10.32758/2782-3040-2022-0-5-24-27

F. I. Gasimova, Ch. K. Rasulov, R. Jafarov, Z. Z. Aghamali̇yev

{"title":"Study of the kinetic regularities and mechanism of the cycloalkylation reaction of phenol with 1-methylcyclopentadiene","authors":"F. I. Gasimova, Ch. K. Rasulov, R. Jafarov, Z. Z. Aghamali̇yev","doi":"10.32758/2782-3040-2022-0-5-24-27","DOIUrl":"https://doi.org/10.32758/2782-3040-2022-0-5-24-27","url":null,"abstract":"The article presents the results of the reaction of phenol with 1-methylcyclopentadiene in the presence of the KU-23 catalyst. Cycloalkylation of phenol have been carried out in a batch laboratory installation. After the reaction, the alkylate is separated from the catalyst and rectified. Firstly, during rectification at atmospheric pressure MCP and phenol that did not enter into the reaction were distilled off (up to 200° C), and then, under vacuum (666.5 Pa) the target reaction product was isolated and its purity and physicochemical parameters were determined. The kinetic regularities of the reaction were studied, and the probable mechanism of its occurrence was established. A kinetic model of the phenol cycloalkylation reaction, consisting of a system of differential equations, that describes the change in the concentration of the initial substances and reaction products over time has been developed. The kinetic constants of differential equations were estimated using a modified random search method with automatic step selection. For this purpose, the developed package of applied programs was used. The orders, activation energies, and rate constants of individual stages are determined. It is shown that the proposed model adequately describes the experimental data.","PeriodicalId":23763,"journal":{"name":"World of petroleum products","volume":"63 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81370954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Changing the properties of narrow fractions in the process of hydrotreating light coking gas oil 轻焦化煤气加氢处理过程中窄馏分性质的改变

World of petroleum products Pub Date : 2022-01-01 DOI: 10.32758/2782-3040-2022-0-4-36-41

D. V. Tarusov, V.K. Slakaev, G.S. Mutovkin, V.E. Znaemov, A. Karpov, N. Bashkirtseva, A. Tarasov, D. Borisanov

引用次数: 0

Evaluation of the possibility of TOFA in the composition of anti-wear additive to diesel fuel with other vegetable oils 评价TOFA在与其他植物油组成的柴油抗磨添加剂中的可能性

World of petroleum products Pub Date : 2022-01-01 DOI: 10.32758/2782-3040-2022-0-5-28-31

А. К. Goriunova, G. Timofeeva, N. S. Baklan, Е. V. Nosova, S. V. Luksha

引用次数: 0

Technical and environmental aspects of the new requirements for the performance properties of promising motor oils 技术和环境方面的新要求对有前途的机油的性能特性提出了新的要求

World of petroleum products Pub Date : 2022-01-01 DOI: 10.32758/2782-3040-2022-0-2-37-40

V. Zolotov

{"title":"Technical and environmental aspects of the new requirements for the performance properties of promising motor oils","authors":"V. Zolotov","doi":"10.32758/2782-3040-2022-0-2-37-40","DOIUrl":"https://doi.org/10.32758/2782-3040-2022-0-2-37-40","url":null,"abstract":"The modern development of transport is at the stage of energy transition to its zero-carbon operation with the use of alternative energy sources instead of traditional liquid fuel. It is assumed that the operation of transport using electric motors and hydrogen fuel cells in the future will be able to represent a significant segment of the global economy. Manufacturers of heavy-duty vehicles and buses are currently actively investing in so-called carbon neutrality technologies and are activating the technical capabilities of options for using electric vehicles for heavy operating conditions. At the same time, along with the electrification of vehicles, the popularity of traditional piston internal combustion engines remains, including in hybrid car models. The new environmental regulations Euro-7, which are part of the European \"Green Agreement\", include stricter emission standards for all gasoline and diesel cars, vans, trucks and buses. This is part of the EU's commitment to support the goal of achieving carbon neutrality by 2050. In connection with the latest achievements in the design of diesel engines, the development of a new category of PC-12 engine oil for heavy-duty diesel engines is officially underway in order to replace the oils of the existing categories CK-4 and FA-4 according to API. The category of oils in the projected specification is planned to be divided into subcategories that provide conditions for their use in heavy-duty transport: off-road conditions, including those with a high temperature load, assuming a high oil viscosity at 150 oC and a shear rate of 106 s-1 (High Temperature High Shear - HTHS), and highway operation. It is assumed that the new PC-12 specification will provide increased thermal-oxidative stability of oils and improved compatibility with elastomers in both subcategories, as well as wear tests with the inclusion of new methods.","PeriodicalId":23763,"journal":{"name":"World of petroleum products","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86386790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 a reaction chamber on Visbreaking product stability 反应室对降粘产物稳定性的影响

World of petroleum products Pub Date : 2022-01-01 DOI: 10.32758/2782-3040-2022-0-5-6-11

R. Gimaletdinov

引用次数: 0

Synthesis of esters of oxypropylated 2,2,5,5-tetramethylolcyclopentanol and investigation of them as base of promising lubricating materials 2,2,5,5-四甲基环戊醇氧丙基酯的合成及其作为润滑材料基础的研究

World of petroleum products Pub Date : 2022-01-01 DOI: 10.32758/2782-3040-2022-0-2-06-10

H.N. Gurbanov, L. Yusifova, M. Mammadyarov, M. M. Abdullayeva

{"title":"Synthesis of esters of oxypropylated 2,2,5,5-tetramethylolcyclopentanol and investigation of them as base of promising lubricating materials","authors":"H.N. Gurbanov, L. Yusifova, M. Mammadyarov, M. M. Abdullayeva","doi":"10.32758/2782-3040-2022-0-2-06-10","DOIUrl":"https://doi.org/10.32758/2782-3040-2022-0-2-06-10","url":null,"abstract":"At present, with the development of modern technology, the requirements for lubricating oils, especially their viscosity-temperature, thermo-oxidative and lubricating characteristics, are becoming more stringent. In this aspect, the synthesis and study of esters of oxypropylated 2,2,5,5-tetramethylolcyclopentanol (TMCP) with cyclic fragments, active centers, multipolar ester groups is promising, have a certain scientific and practical significance.The esters were synthesized by the esterification reaction of oxypropylated TMCP with aliphatic monocarboxylic acids C4-C8, and their physicochemical, viscosity-temperature, thermal-oxidative and lubricating properties were studied. After determining the viscosity-temperature properties, it was established that they have a low pour point (minus 38-minus 430C), an average viscosity at 1000C (ν100 = 23.50-40.22 mm2/s), a high viscosity index (133-150 units) and flash point (305-3800C). When determining the thermo-oxidative stability of esters, it was found that they have low acid numbers after oxidation (2.51-3.28 mg KOH/g), corrosion of electrodes AK-4 (0.06-0.16 mg/cm2), ШХ -15 (0.08-0.11 mg/cm2) and the precipitate is insoluble in isooctane is low (0.120-0.248% of the mass), the volatility is 0.30-0.50% of the mass. The lubricating properties of esters were also determined: critical load Рк,Н = 750-900, spot wear diameter Di,mm at Р = 196Н = 0.50-0.65. Oxypropylated esters in comparison with reference esters - TMCP ester with caproic acid and pentaerythritol ester (PET) and mixture of fatty acids (MFA) fr. C5-C6 surpass them in almost all parameters, are higher molecular weight and promising, and this makes it possible to create on their basis high-temperature lubricating oils special purpose, components or additives to other lubricating oils.","PeriodicalId":23763,"journal":{"name":"World of petroleum products","volume":"58 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91327144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Some recommendations for improving the effectiveness of the assessment of the neutralizing ability of motor oils 提出了提高机油中和性评价有效性的建议

World of petroleum products Pub Date : 2022-01-01 DOI: 10.32758/2782-3040-2022-0-3-36-37

V. L. Lashkhi, A. L. Chudinovskikh, D. Boykov

引用次数: 0

Biotechnological method of cleaning oil-contaminated soils 石油污染土壤净化的生物技术方法

World of petroleum products Pub Date : 2022-01-01 DOI: 10.32758/2782-3040-2022-0-2-20-23

T.M. Ibragimova, P. Mammadova, E. Babayev, K. Gahramanova, A.E. Almammadova

引用次数: 0

New requirements for the properties of promising oils for automotive diesel and gasoline engines and methods of their testing 对车用柴油和汽油发动机用前景油性能的新要求及其测试方法

World of petroleum products Pub Date : 2022-01-01 DOI: 10.32758/2782-3040-2022-0-4-42-45

V. Zolotov

{"title":"New requirements for the properties of promising oils for automotive diesel and gasoline engines and methods of their testing","authors":"V. Zolotov","doi":"10.32758/2782-3040-2022-0-4-42-45","DOIUrl":"https://doi.org/10.32758/2782-3040-2022-0-4-42-45","url":null,"abstract":"Analytical information is presented on the development and implementation of new technical requirements for the performance properties of motor oils and new methods of testing them in the specifications for promising automotive engines, taking into account global trends in environmental protection. Taking into account the latest diesel designs, the European Association of Automakers (Association des Constructeures Europe'enes d’ Automobiles - ACEA) has updated the specifications for engine oils for high-power diesels this year, including low-viscosity oils with an extended shift interval. The changes do not directly concern the assessment of the energy-saving properties of motor oils - saving fuel consumption when using them. ACEA is updating its specifications for heavy-duty heavy-duty diesel engines three years later than their originally planned adoption by the end of 2018. Two new oil categories E8 and E11 have been added to the 2022 ACEA specification with simultaneous replacement of categories E6 and E9, respectively, declared obsolete. The possibility of using potentially new methods for evaluating their properties - the ability of oils to reduce high-temperature engine wear and the amount of deposits in the turbocharger - is being considered when testing oils of the new GF-7 category. The use of upgraded methods is proposed: a new Noack test to determine the volatility of oils to assess their volatility and consumption, an updated Ford method to assess the pre-ignition of the fuel mixture at low speeds and high torque to ensure engine protection during the service life of the oil. Finally, a number of Original Equipment manufacturers (Original Equipment Manufacturer - OEM) assume the use of low–viscosity oils of classes 0W-8 and 0W-12 according to SAE for their engines, and these brands are likely to be included in the list of tested oils of the GF-7 category according to the new ILSAC specification.","PeriodicalId":23763,"journal":{"name":"World of petroleum products","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88361220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study of bitumen cooling process in an above-ground tank in order to develop technologically and energetically efficient methods of maintaining its temperature 研究沥青在地上储罐中的冷却过程，以开发技术和节能的方法来保持其温度

World of petroleum products Pub Date : 2022-01-01 DOI: 10.32758/2782-3040-2022-0-4-7-14

A. Dubinin, V. Zakharov

{"title":"Study of bitumen cooling process in an above-ground tank in order to develop technologically and energetically efficient methods of maintaining its temperature","authors":"A. Dubinin, V. Zakharov","doi":"10.32758/2782-3040-2022-0-4-7-14","DOIUrl":"https://doi.org/10.32758/2782-3040-2022-0-4-7-14","url":null,"abstract":"The article is devoted to the study of the process of bitumen BND-60/90 cooling in an elevated vertical steel tank. Attention to this issue is dictated by the fact, that the specific properties of the product increasing viscosity and tendency to solidification during cooling — create difficulties in its operational turnover for the operators, and storage at high temperature leads to deterioration of the commodity properties. The relevance of the study comes from the need to find an energy-efficient solution for enterprises which accept, store and promptly dispense bitumen on an industrial scale. The work was conducted in order to explore the possibility of reducing energy consumption, while heating the product, by optimizing the design of the heater. The object of the research was an insulated tank RVS-3000 with a fixed roof, the prototype of the same volume of which was built by Himstalcon-Engineering LLC in Kaluga. It is assumed, that this tank was filled with bitumen heated to a temperature of 160⁰С. In this work the distribution of the temperature field, as well as the field of velocity of bitumen movement over the volume of the tank, were obtained. This allowed us to formulate preliminary conclusions about promising directions for the development of technologically and energetically efficient methods of maintaining its temperature.","PeriodicalId":23763,"journal":{"name":"World of petroleum products","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80194680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0