Results 51 to 60 of about 6,753 (224)
AIChE Journal, EarlyView.Abstract Emulsion separation remains a persistent challenge in chemical and process industries due to the metastable nature of dispersed droplets. In gravity separators, the overall separation rate is governed by the formation of a densely packed zone (DPZ) of deforming and coalescing droplets that mediates between the dispersed and continuous phases ...
Andrei Zlobin +8 more
wiley +1 more source
Asphaltenes and asphalts / [PDF]
, 1994 This is the first volume of a two-volume set of critical reviews of many aspects of both asphaltenes and asphalts and their interrelationship. Asphaltene is invariably present in asphalt or bitumen and other fossil fuel-derived liquids such as coal tar ...
Yen, Teh Fu,1927-2010. +1 more
core
A Fourier-Transform Infrared (FTIR) study for Algerian asphaltenes [PDF]
, 2018 despite that the Algerian light oil contain a few quantity of asphaltenes (under to 0.7 wt %)but The problem of their deposition during the oil production and transportation is strongly suggested, this deposition of asphaltenes does not depend on the ...
Khodja, M. +3 more
core +2 more sources
Oil & Gas Science and Technology, 2016 Asphaltenes are shown to be amphoteric, containing acidic and basic species that can ionize at low and high pH respectively when they come in contact with water.
Hutin Anthony +2 more
doaj +1 more source
Revista Fuentes El Reventón Energético, 2017 Asphaltenes can cause serious problems to petroleum industry. Indication of asphaltenes stability can be obtained by precipitation induced by n-heptane, monitored by near-infrared (NIR).
Jeniffer N. Figueira +3 more
doaj +1 more source
Adsorption of asphaltenes on multiscale porous alumina [PDF]
, 2022 International audienceAlumina catalysts are frequently used in refineries for the hydrotreatment of heavy petroleum fraction that are enriched in asphaltenes.
Lecocq, Vincent +4 more
core +1 more source
Petroleum ResearchThis study presents analysis of asphaltenes isolated from two crude oils: naphthenic-aromatic biodegraded oil and paraffin-naphthenic oil, which have been used as precursors for carbon materials synthesis.
Andrey Grinko +10 more
doaj +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Enhancing oil recovery (EOR) in mature reservoirs is hindered by high interfacial tension (IFT) and oil‐wet rock formations, especially under harsh, high‐salinity conditions. This study aims to overcome these limitations by synthesizing a novel carbon nanotube nanocomposite covalently grafted with polyethylenimine and non‐covalently ...
Mohamed Abu Shuheil +8 more
wiley +1 more source
Compatibility Assessment of Crude Oil Blends Using Different Methods
Chemical Engineering Transactions, 2017 Today, opportunity crude oils and their blends have attracted the attention of oil companies looking to increase their cross refinery margin. However, when crude oils are blended in the wrong proportions or even the wrong order, they can precipitate ...
M.A.M. Ben Mahmoud, A. Aboujadeed
doaj +1 more source
The Canadian Journal of Chemical Engineering, EarlyView.Key improvements obtained by incorporating nanoparticles into a lab‐scale SAGD process configuration. The bar plots show enhanced oil recovery, reduced viscosity, and increased asphaltene adsorption in nanoparticle‐assisted scenarios compared with conventional SAGD.
Luis Prada +6 more
wiley +1 more source