Results 91 to 100 of about 22,701 (229)

Extracting the equation of state of lattice gases from Random Sequential Adsorption simulations by means of the Gibbs adsorption isotherm

open access: yes, 2017
A novel approach for deriving the equation of state for a 2D lattice gas is proposed, based on arguments similar to those used in the derivation of the Langmuir-Szyszkowski equation of state for localized adsorption.
Darjani, Shaghayegh   +2 more
core   +1 more source

Structural Characterisation of Asphaltenes during Residue Hydrotreatment with Light Cycle Oil as an Additive

open access: yesJournal 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
doaj   +1 more source

Role of oxidative pretreatment on asphaltenes enhancement for carbon fiber precursor production from vacuum residue (VR)

open access: yesNext Materials
There 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
doaj   +1 more source

Non-Exponential 1H and 2H NMR Relaxation and Self-Diffusion in Asphaltene-Maltene Solutions [PDF]

open access: gold, 2021
Kevin Lindt   +3 more
openalex   +1 more source

Molecular Weight and Association of Asphaltenes: a Critical Review Masse moléculaire et association des asphaltènes : une revue critique

open access: yesOil & 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
doaj   +1 more source

REVIEW OF STUDIES ON ASPHALTENE - WAX INTERACTION AND THE EFFECT THEREOF ON CRYSTALLIZATION

open access: yesCT&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
doaj  

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