Results 11 to 20 of about 6,740 (225)
Adsorption and catalytic oxidation of asphaltenes in fumed silica nanoparticles: Effect of the surface acidity [PDF]
Dyna, 2016 This study aims to evaluate the effect of surface acidity of fumed silica nanoparticles in adsorption and subsequent thermal cracking of Colombian asphaltenes.
Camilo Andrés Franco-Ariza +2 more
doaj +2 more sources
Computer Simulation of Asphaltenes [PDF]
Petroleum Chemistry, 2018 The review describes theoretical approaches based on computer simulations at various levels of details (from quantum chemical calculations to atomistic and coarse-grained models) to study asphaltenes and systems containing asphaltenes. The used methods are described, their advantages and disadvantages are discussed in terms of computational costs and ...
S. V. Lyulin +9 more
core +4 more sources
Catagenetic trends in composition and structure parameters of asphaltenes
GeoresursyСatagenetic transformations of asphaltenes of organic matter (OM) from recent sediments and fossil rocks were studied on rocks sampled from different sedimentary basins (Timan-Pechora, Mezen, West Siberian, Kuznetsk, Aldan-Maya and Middle Amur) of Russia.
L. S. Borisova, I. D. Timoshina
doaj +2 more sources
Factors Affecting Asphaltenes Stability [PDF]
, 2023 Asphaltenes represent the heaviest and the most polar fraction of crude oil. Asphaltenes precipitation within the reservoir pores or production flow lines can severely hamper petroleum extraction process.
Punase, Abhishek
core
Scientific Reports, 2022 Asphaltenes from bitumen are abundant resource to be transformed into carbon as promising supercapacitor electrodes, while there is a lack of understanding the impact from different fractions of bitumen and asphaltenes, as well as the presence of ...
Dinesh Mishra +6 more
doaj +1 more source
Georesursy, 2018 NMR spectroscopy in combination with elemental analysis was used to study asphaltenes in biodegraded oils from Cenomanian pools of West Siberia. The sampling depths vary from 680 to 1800 m, formation temperatures – from 40°C to 70°C.
L.S. Borisova, E.A. Fursenko
doaj +1 more source
Oil & Gas Science and Technology, 2006 Crude oils contain a variety of components - including asphaltenes - that can adsorb onto mineral surfaces and alter wetting. What distinguishes the asphaltenes from other constituents of an oil is their tendency to aggregate and even separate from the ...
Buckley J. S.
doaj +1 more source
Oil & Gas Science and Technology, 2006 Les produits lourds du pétrole (résines et asphaltènes) jouent un rôle important dans les problèmes de formation des gisements de pétrole, de récupération assistée - en particulier des pétroles lourds -, de traitement et même d'utilisation des produits ...
Tissot B.
doaj +1 more source
A Study on the Adsorption and Catalytic Oxidation of Asphaltene onto Nanoparticles [PDF]
Journal of Petroleum Science and Technology, 2017 The use of nanoparticles, including metal oxide surfaces, as asphaltene adsorbents is a potential method of removing and/or upgrading asphaltenes. The adsorption of two asphaltene types, extracted from two types of Iranian crude oil, onto nanoparticles ...
Alireza Solaimany nazar, Fatemeh Amin
doaj +1 more source
Petroleum, 2020 Asphaltenes removal enhances the quality of the oil and facilitates the processing. In the present work, a NiO/AlPO-5 nanocomposite using green TMG was synthesized as a particular adsorbent for asphaltenes removal. NiO/AlPO-5 was characterized using FTIR,
Majid Mohammadi +2 more
doaj +1 more source