eprintid: 6037
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/60/37
datestamp: 2023-11-09 16:17:47
lastmod: 2023-11-09 16:17:47
status_changed: 2023-11-09 16:04:39
type: article
metadata_visibility: show
creators_name: Chandio, Z.A.
creators_name: Ramasamy, M.
creators_name: Mukhtar, H.B.
title: Temperature effects on solubility of asphaltenes in crude oils
ispublished: pub
keywords: Asphaltenes; Dissolution; Flocculation; Ostwald ripening; Petroleum industry; Precipitation (chemical); Sols; Solubility; Temperature, Automated flocculation titrimeter; Colloidal dispersion; Continuous phase; Effect of temperature; Heithaus parameters; Hildebrand solubility; Hildebrand's solubility parameters; Temperature range, Crude oil
note: cited By 40
abstract: Asphaltenes, the heaviest fraction in crude oil, are linked to severe problems in petroleum industry. Asphaltenes are either in dissolved state or in colloidal dispersion form in crude oil. Temperature has a significant role in dissolving the asphaltenes in continuous phase of crude oil. However, there are differing views on the effect of temperature on solubility and precipitation of asphaltenes. In this work, an investigation was carried out on the effect of temperature on solubility of asphaltenes for six different crude oil samples in the temperature range of 20-95. °C, using automated flocculation onset titration. The test results are interpreted in terms of the Heithaus parameters and using Hildebrand's solubility parameter. The experimental data, the Heithaus parameters and the Hildebrand solubility parameter show that solubility of asphaltenes increased with increase in temperature and possible phase transition of asphaltenes takes place with the increase in temperature. © 2014 The Institution of Chemical Engineers.
date: 2015
publisher: Institution of Chemical Engineers
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84922273650&doi=10.1016%2fj.cherd.2014.09.018&partnerID=40&md5=6ffcef16b7ac3520083b0dcb76243204
id_number: 10.1016/j.cherd.2014.09.018
full_text_status: none
publication: Chemical Engineering Research and Design
volume: 94
pagerange: 573-583
refereed: TRUE
issn: 02638762
citation:   Chandio, Z.A. and Ramasamy, M. and Mukhtar, H.B.  (2015) Temperature effects on solubility of asphaltenes in crude oils.  Chemical Engineering Research and Design, 94.  pp. 573-583.  ISSN 02638762