Results 81 to 90 of about 6,740 (225)
Journal of Chemistry, 2015 Several atmospheric residues (AR) of Kuwaiti crude, in the absence, or in the presence, of light cycle oil (LCO) as an aromatic additive, were hydrotreated in an experimental plant.
Yong-Jun Liu, Zhi-Feng Li
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Next MaterialsThere is growing interest in utilizing petroleum residue to useful carbon materials for economic diversification of low-value petroleum byproducts. Due to chemical complexity and the presence of impurities, it requires pretreatment which traditionally ...
Mustafa M. Amin +3 more
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Halogenation of Oilsands Bitumen, Maltenes, and Asphaltenes
, 2015 Bromination of oilsands-derived materials was investigated as part of a search to find conversion pathways other than traditional hydroprocessing and thermal processing for the upgrading of asphaltenes.
Glaucia H. C. Prado (1327146) +1 more
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The composition and thermal properties of waxes in oil asphaltenes [PDF]
, 2015 © 2015 Akadémiai Kiadó, Budapest, Hungary. Asphaltenes of four Russian and Kyrgyzstan crude oils were investigated with calorimetry, gas chromatography and X-ray diffraction analysis. It was established that asphaltenes contain waxes.
Samigullina A. +4 more
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The composition and thermal properties of waxes in oil asphaltenes
, 2020 © 2015 Akadémiai Kiadó, Budapest, Hungary. Asphaltenes of four Russian and Kyrgyzstan crude oils were investigated with calorimetry, gas chromatography and X-ray diffraction analysis. It was established that asphaltenes contain waxes.
Samigullina A. +4 more
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REVIEW OF STUDIES ON ASPHALTENE - WAX INTERACTION AND THE EFFECT THEREOF ON CRYSTALLIZATION
CT&F Ciencia, Tecnología & Futuro, 2014 This paper reviews the impact of asphaltenes on wax crystallization and on the properties of crude oils, and the consequences thereof on the flow assurance of waxy crude oil.
Emiliano Ariza-León +2 more
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Oil & Gas Science and Technology, 2006 The determination of asphaltene molecular weights is complicated by the tendency of asphaltene molecules to associate with each other and with other petroleum constituents, and reported molecular weights vary from 900 to 300 000.
Speight J. G. +4 more
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Removal of Asphaltenes using Ionic Liquid-Effect of Ionic Liquid on Asphaltenes Characteristics
, 2009 The objective of this project is to study the potential of ionic liquid in removing heavy, high molecular weight multi-ring aromatics, and/or resins, and/or polycyclic hetero atom - containing aromatics which is referred to collectively as asphaltenes ...
Farahnajwa Binti Amirrudin, Farahnajwa
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Effect of Chemical Alteration of Petroleum Asphaltenes on Molecular Interaction
, 2003 Asphaltenes are naturally occurring components of crude oil and have been the subject of many studies that have involved a variety of methods to determine their complex structure, their association in crude oil with resins, and their agglomeration ...
Garcia, Daniel Merino +4 more
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Microstructural Characterization of Asphaltenes on Surfaces
, 2014 Crude oils contain a distribution of molecules with diverse chemical structures and molecular weights. Asphaltenes are considered the most problematic of these structures.
Mehranfar, Mahsa
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