Oil and Gas Technologies最新文献_第5页

Risk Research by Mathematical Modeling to Increase the Life Cycle of Catalysts Used in Modern Refineries 用数学模型研究现代炼油厂催化剂寿命周期的风险

Oil and Gas Technologies Pub Date : 1900-01-01 DOI: 10.32935/1815-2600-2023-144-1-18-22

R. A. Ashrafov, A. M. Nuriev

{"title":"Risk Research by Mathematical Modeling to Increase the Life Cycle of Catalysts Used in Modern Refineries","authors":"R. A. Ashrafov, A. M. Nuriev","doi":"10.32935/1815-2600-2023-144-1-18-22","DOIUrl":"https://doi.org/10.32935/1815-2600-2023-144-1-18-22","url":null,"abstract":"This article discusses the results of a study of the effect of the size of a platinum-containing catalyst onthe characteristics of coke fragments and the method of mathematical modeling of coke burning in the process of oxidative regeneration both at catalytic reforming plants and at catalytic cracking plants, in order to reduce the risks of premature loss of the life cycle of expensive catalysts used at modern refineries.The revealed kinetic patterns obtained during the study of coke burning of a platinum-containing catalyst allowed us to propose a new reaction mechanism. Stoichiometric ratios describing individual reactions are compiled. Based on the proposed mechanism,kinetic equations for routes are adopted. Based on the obtained system of kinetic equations and assuming the absence of radial temperature gradients, concentration and rate of the process with heat removal, the heat balance equation is proposed. The parameters of the model are considered as factors of risk analysis of technological processes atthe refinery enterprises. The versatility of the developed mathematical model of the process makes it possible to apply it to solving problems of managing both reforming and cracking installations, in order to reduce risk factors","PeriodicalId":131433,"journal":{"name":"Oil and Gas Technologies","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116073820","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

Influence of Residual Fuel Sediment on Stress-Strain State of a Vertical Steel Tank 燃油残渣对立式钢油箱应力-应变状态的影响

Oil and Gas Technologies Pub Date : 1900-01-01 DOI: 10.32935/1815-2600-221-134-3-60-64

R. Sultanbekov, A. Schipachev, I. S. Leonov

{"title":"Influence of Residual Fuel Sediment on Stress-Strain State of a Vertical Steel Tank","authors":"R. Sultanbekov, A. Schipachev, I. S. Leonov","doi":"10.32935/1815-2600-221-134-3-60-64","DOIUrl":"https://doi.org/10.32935/1815-2600-221-134-3-60-64","url":null,"abstract":"The article studies the formation of the total sediment by the incompatibility of residual fuels and oil products, analyzes and calculates the stress-strain state of the tank taking into account oil products and sediment. The studies examined the influence of temperature fields on the sedimentation of a mixture of residual fuels caused by the incompatibility of these components. Temperatures of a stored product, namely residual fuel RMK-700, and ambient temperatures are taken into account when modelling in ANSYS product. Effects that oil product has separately and oil product with bottom sediments have on a stress-stain state are compared. Laboratory tests were performed to accurately measure density depending on various temperatures. By means of finite element method a stress-stain state of a vertical steel tank RVS-20000 is examined, the calculations showed that the maximum stresses are located in zones of the weld seam and in the places of installation of the receiving-distributing branch pipe and manhole. In these areas bottom sediment and temperature difference influence the stress-stain state greatly, with the stresses becoming even higher as the wall gets thinner.","PeriodicalId":131433,"journal":{"name":"Oil and Gas Technologies","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121655012","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

Determination of Wax Appearance Temperature in Various Crude Oils 各种原油中蜡样显现温度的测定

Oil and Gas Technologies Pub Date : 1900-01-01 DOI: 10.32935/1815-2600-2022-138-1-49-54

V. К. Miller, L. V. Ivanova, G. Mansur, V. N. Koshelev, V. R. Mkrtychan

引用次数: 0

Formation of Traps and Hydrocarbon Deposits of the Southern Part of the Siberian Platform 西伯利亚地台南部圈闭形成与油气沉积

Oil and Gas Technologies Pub Date : 1900-01-01 DOI: 10.32935/1815-2600-2022-140-3-35-40

A. Ponomarenko

引用次数: 0

Justification of the Technology for Preventing the Formation of Asphalt-Resin-Paraffin Deposits in Oil Wells 油井防止沥青-树脂-石蜡沉积技术的论证

Oil and Gas Technologies Pub Date : 1900-01-01 DOI: 10.32935/1815-2600-2022-138-1-36-40

L. Saychenko, V. Shalaev

引用次数: 0

Use of Ultrasonic Treatment for Enhanced Oil Recovery 利用超声波处理提高采收率

Oil and Gas Technologies Pub Date : 1900-01-01 DOI: 10.32935/1815-2600-2023-145-2-36-43

A. Alfayyadh, D. Z. Valiev, R. A. Kemalov, D. Riffel, N. I. Bryzgalov

引用次数: 0

Productivity Criteria for Complex Reservoirs Based on the Study of Deep-Adsorbed Gases 基于深层吸附气研究的复杂储层产能标准

Oil and Gas Technologies Pub Date : 1900-01-01 DOI: 10.32935/1815-2600-2021-133-2-27-30

D. A. Kobylinskiy

引用次数: 0

From the Experience of Applying the Acoustic Emission Method 从应用声发射法的经验

Oil and Gas Technologies Pub Date : 1900-01-01 DOI: 10.32935/1815-2600-2022-143-6-57-60

L. A. Churikova, M. A. Bakhirev, S. Akhmetzhan, M. В. Schmidt, A. I. Timofeev

引用次数: 0

Quality Assessment of Base Oils Obtained by Regeneration Technology from Wasted Lubricants 废润滑油再生技术制备基础油的质量评价

Oil and Gas Technologies Pub Date : 1900-01-01 DOI: 10.32935/1815-2600-2022-138-1-29-35

A. V. Kutsev

引用次数: 0

Mathematical Modeling of the Process Hydrotreatment of Diesel Fuel Based on the Kinetic Characteristics of Its Fractions 基于柴油馏分动力学特性的柴油加氢过程数学建模

Oil and Gas Technologies Pub Date : 1900-01-01 DOI: 10.32935/1815-2600-2021-136-5-8-13

N. Samoilov

{"title":"Mathematical Modeling of the Process Hydrotreatment of Diesel Fuel Based on the Kinetic Characteristics of Its Fractions","authors":"N. Samoilov","doi":"10.32935/1815-2600-2021-136-5-8-13","DOIUrl":"https://doi.org/10.32935/1815-2600-2021-136-5-8-13","url":null,"abstract":"The principles of mathematical modeling of the diesel fuel hydrotreatment process as a multicomponent reaction system are considered. Feedstock containing a large number of organosulphuric components from the standpoint of increasing the level of model adequacy and calculation accuracy can be characterized by the total sulfur content in the raw material as a whole (1), the total sulfur content in pseudocomponents in the feedstock or its narrow fractions (2), the concentration of individual organosulphuric substances (3). It is shown that in cases 1 and 2, the concept of the reaction rate constant as a constant that characterizes the physico-chemical process is degenerate, and in calculations it should be considered as a kinetic characteristic that takes into account the inhomogeneity of the chemical process over time. As the hydrogenated feedstock comes into contact with the hydrogen-containing gas, the most active organosulfuric components with a high reaction rate constant are first hydrogenated on the catalyst, and at the final stage of the process, the less active components with a low reaction rate constant are hydrogenated. Examples of calculating the dependence of the kinetic characteristic and the total sulfur content in the hydrogenate in two broad fractions of diesel fuel on the time of contact of the reaction medium with the catalyst and the subsequent compounding of the fractions into diesel fuel.","PeriodicalId":131433,"journal":{"name":"Oil and Gas Technologies","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123710396","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