TY  - JOUR
EP  - 583
SN  - 02638762
PB  - Institution of Chemical Engineers
SP  - 573
TI  - Temperature effects on solubility of asphaltenes in crude oils
N1  - cited By 40
AV  - none
VL  - 94
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84922273650&doi=10.1016%2fj.cherd.2014.09.018&partnerID=40&md5=6ffcef16b7ac3520083b0dcb76243204
JF  - Chemical Engineering Research and Design
A1  - Chandio, Z.A.
A1  - Ramasamy, M.
A1  - Mukhtar, H.B.
Y1  - 2015///
KW  - Asphaltenes; Dissolution; Flocculation; Ostwald ripening; Petroleum industry; Precipitation (chemical); Sols; Solubility; Temperature
KW  -  Automated flocculation titrimeter; Colloidal dispersion; Continuous phase; Effect of temperature; Heithaus parameters; Hildebrand solubility; Hildebrand's solubility parameters; Temperature range
KW  -  Crude oil
ID  - scholars6037
N2  - 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.
ER  -