Experimental Study of Asphaltenes Flocculation Onset in Crude Oils Using the Densitometry Measurement Technique

Autor:	Gédéon Ekulu, M. Rogalski, Amsini Sadiki
Rok vydání:	2010
Předmět:	chemistry.chemical_classification Heptane Flocculation Chromatography Polymers and Plastics Cyclohexane Toluene Surfaces Coatings and Films chemistry.chemical_compound Hydrocarbon chemistry Deposition (phase transition) Physical and Theoretical Chemistry Densitometry Asphaltene
Zdroj:	Journal of Dispersion Science and Technology. 31:1495-1503
ISSN:	1532-2351 0193-2691
Popis:	The asphaltenes flocculation proceeds with changes of oil composition and causes significant losses in petroleum industry operations. The main objective of this work is to evaluate the reliability of the densitometry technique in studying experimentally the mechanism of aggregation and flocculation of asphaltenes occurring in crude oils. As asphaltene flocculation threshold in crude oils or mixture can be achieved by addition of n-heptane, various n-heptane concentrations were added to crude oil, and their effects have been investigated trough density measurements. Thereby, measurements were based on mixture of crude oil + toluene and cyclohexane + n-heptane, respectively. While asphaltene aggregates form clusters and flocculate, the mixture volumetric mass change and the reduced density of non-Newtonian fluids under investigation have been pointed out as one of appropriate measures of flocculation process. In particular, the curve representing the reduced density as function of the ratio between n-heptan...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7e583a0de87ec183c46ae3074ea05e62 https://doi.org/10.1080/01932690903293867 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.