DSpace at KFUThe digital repository system captures, stores, indexes, preserves, and distributes digital research material.http://dspace.kpfu.ru:80/xmlui2026-09-13T16:14:22Z2026-09-13T16:14:22ZCatalytic In‐Situ Upgrading of Heavy and Extra‐Heavy Crude Oils. Chapter 7: Catalytic mechanism and kineticsFelix Lugo Jose GuillermoTirado Kota AleksisAl-Muntaser Ameen AhmedVarfolomeev Mikhail AlekseevichYuan ChengdongAncheyta Juarez Jorgehttps://dspace.kpfu.ru/xmlui/handle/net/1861332026-09-09T10:40:59Z2023-01-01T00:00:00ZCatalytic In‐Situ Upgrading of Heavy and Extra‐Heavy Crude Oils. Chapter 7: Catalytic mechanism and kinetics
Felix Lugo Jose Guillermo; Tirado Kota Aleksis; Al-Muntaser Ameen Ahmed; Varfolomeev Mikhail Alekseevich; Yuan Chengdong; Ancheyta Juarez Jorge
This chapter focuses on the analysis of the different kinetic models reported in the literature for the in situ and ex situ upgrading of heavy and extra‐heavy crude oils using dispersed phase catalysts in a hydrogen and steam atmosphere. Hydrocracking reactions can be carried out by different mechanisms depending on the catalyst type: In the absence of a catalyst, hydropyrolysis reactions can be achieved at high pressures and temperatures. The information reported in the literature on kinetic models for hydrocracking of heavy fractions for in situ and ex situ applications includes the operating conditions, the type of feedstock and catalyst used to obtain the experimental data, the reactions schemes, and the lumps employed in each kinetic model. Currently, there are three main types of approaches to kinetic modeling: discrete lumps, continuous mixture, and single events.
2023-01-01T00:00:00ZCatalytic In‐Situ Upgrading of Heavy and Extra‐Heavy Crude Oils. Chapter 1: Properties of Heavy and Extra‐Heavy Crude OilsTirado Kota AleksisFelix Lugo Jose GuillermoTrejo FernandoVarfolomeev Mikhail AlekseevichYuan ChengdongNurgaliev Danis KarlovichSámano VicenteAncheyta Juarez Jorgehttps://dspace.kpfu.ru/xmlui/handle/net/1861322026-09-09T10:36:03Z2023-01-01T00:00:00ZCatalytic In‐Situ Upgrading of Heavy and Extra‐Heavy Crude Oils. Chapter 1: Properties of Heavy and Extra‐Heavy Crude Oils
Tirado Kota Aleksis; Felix Lugo Jose Guillermo; Trejo Fernando; Varfolomeev Mikhail Alekseevich; Yuan Chengdong; Nurgaliev Danis Karlovich; Sámano Vicente; Ancheyta Juarez Jorge
This chapter presents the definition and classification of crude oils according to their constituents and describes the main properties used to characterize them. Basically, heavy crude oil has a much higher viscosity and density than conventional crude oil and generally has sulfur content higher than 2 wt%. The importance of certain physical properties has been highlighted for the classification of crude oil and complications of recovery from reservoirs. Physical properties such as density, viscosity, and pour point may vary widely in crude oils from different locations. Chemical properties are indispensable to know the quality of heavy or extra-heavy crude oils in order to evaluate the refining capacity likewise the type of products generated. Heavy crude oils from different origins present similar ranges of properties because they are characterized as viscous liquids with high content of heteroatoms providing low API gravity values.
2023-01-01T00:00:00ZHandbook of histological slides "Special histology": handbookPljushkina Aleksandra SergeevnaSultanova Kadriia NailevnaFilatov Nikita SergeevichBilialova Alina AiratovnaGataullina Luiza RashidovnaAndreeva Dina IvanovnaChukmarova Dinara IldusovnaKiyasov Andrey Pavlovichhttps://dspace.kpfu.ru/xmlui/handle/net/1861312026-09-09T10:30:14Z2026-01-01T00:00:00ZHandbook of histological slides "Special histology": handbook
Pljushkina Aleksandra Sergeevna; Sultanova Kadriia Nailevna; Filatov Nikita Sergeevich; Bilialova Alina Airatovna; Gataullina Luiza Rashidovna; Andreeva Dina Ivanovna; Chukmarova Dinara Ildusovna; Kiyasov Andrey Pavlovich
2026-01-01T00:00:00Z4-lump kinetic model for non-catalytic oil shale upgrading at sub- and supercritical water conditionsFelix Lugo Jose GuillermoDjimasbe RichardVarfolomeev Mikhail AlekseevichAl-Muntaser Ameen AhmedTirado Kota AleksisSuwaid MuneerProchukhan Konstantin Y.Galiullin Eduard AleksandrovichShamanov Insaf NakipovichMorozova Evgeniya VasilevnaGareev Bulat IrekovichAncheyta Juarez Jorgehttps://dspace.kpfu.ru/xmlui/handle/net/1861302026-09-08T08:53:17Z2024-01-01T00:00:00Z4-lump kinetic model for non-catalytic oil shale upgrading at sub- and supercritical water conditions
Felix Lugo Jose Guillermo; Djimasbe Richard; Varfolomeev Mikhail Alekseevich; Al-Muntaser Ameen Ahmed; Tirado Kota Aleksis; Suwaid Muneer; Prochukhan Konstantin Y.; Galiullin Eduard Aleksandrovich; Shamanov Insaf Nakipovich; Morozova Evgeniya Vasilevna; Gareev Bulat Irekovich; Ancheyta Juarez Jorge
The kinetics of non-catalytic oil shale conversion at sub- and supercritical water conditions was studied. All experiments were carried out in a batch reactor at 300-400 ?C and 1-48 h. A four-lump reaction scheme is proposed, where oil shale produces synthetic oil, gas and coke, and some other reactions take place between products (coke to gas, synthetic oil to gas and synthetic oil to coke). Low average absolute error ((6.5%) was obtained, which corroborates the accuracy of estimated parameters of the developed kinetic model. The reaction rate was found to depend more on synthetic oil yield than on oil shale conversion according to the calculated reaction orders. The sensitivity analysis of the kinetic parameters showed that all values of the obtained reaction rate coefficients are the optimal. At temperatures near the critical point of water (350 and 400 ?C), lowest values for asphaltenes and highest light fractions contents in synthetic oil were obtained.
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