Thermodynamics of the deposition of complex waxes and asphaltenes in crude oil

Rowena Ball, John C Jones

Research output: Contribution to journalArticle

5 Downloads (Pure)

Abstract

The thermodynamics of wax formation in crude oils is examined and additional insights obtained into the problem. We show that a correlation for cloud point, or wax apppearance temperature, obtained for pure-substance waxes may be extended to mixtures of hydrocarbons, thereby generalising the usefulness of the correlation. We apply the colligative equation for freezing point depression to quantify the analogous activity of wax inhibitors. The limits of applicability of an empirical formula that relates wax molecular weight and wax density are examined. We extend the analysis to the high molecular weight asphaltenes.
Original languageEnglish
Pages (from-to)34-37
Number of pages4
JournalThe Open Thermodynamics Journal
Volume3
DOIs
Publication statusPublished - 2009

Fingerprint

wax
crude oil
thermodynamics
freezing
inhibitor
hydrocarbon
temperature

Keywords

  • colligative properties
  • wax appearance temperature
  • wax inhibitors
  • wax specific volume

Cite this

Thermodynamics of the deposition of complex waxes and asphaltenes in crude oil. / Ball, Rowena; Jones, John C.

In: The Open Thermodynamics Journal, Vol. 3, 2009, p. 34-37 .

Research output: Contribution to journalArticle

@article{8c58e46799304de29e3792ac61954de5,
title = "Thermodynamics of the deposition of complex waxes and asphaltenes in crude oil",
abstract = "The thermodynamics of wax formation in crude oils is examined and additional insights obtained into the problem. We show that a correlation for cloud point, or wax apppearance temperature, obtained for pure-substance waxes may be extended to mixtures of hydrocarbons, thereby generalising the usefulness of the correlation. We apply the colligative equation for freezing point depression to quantify the analogous activity of wax inhibitors. The limits of applicability of an empirical formula that relates wax molecular weight and wax density are examined. We extend the analysis to the high molecular weight asphaltenes.",
keywords = "colligative properties, wax appearance temperature, wax inhibitors, wax specific volume",
author = "Rowena Ball and Jones, {John C}",
year = "2009",
doi = "10.2174/1874396X00903010034",
language = "English",
volume = "3",
pages = "34--37",
journal = "The Open Thermodynamics Journal",
issn = "1874-396X",

}

TY - JOUR

T1 - Thermodynamics of the deposition of complex waxes and asphaltenes in crude oil

AU - Ball, Rowena

AU - Jones, John C

PY - 2009

Y1 - 2009

N2 - The thermodynamics of wax formation in crude oils is examined and additional insights obtained into the problem. We show that a correlation for cloud point, or wax apppearance temperature, obtained for pure-substance waxes may be extended to mixtures of hydrocarbons, thereby generalising the usefulness of the correlation. We apply the colligative equation for freezing point depression to quantify the analogous activity of wax inhibitors. The limits of applicability of an empirical formula that relates wax molecular weight and wax density are examined. We extend the analysis to the high molecular weight asphaltenes.

AB - The thermodynamics of wax formation in crude oils is examined and additional insights obtained into the problem. We show that a correlation for cloud point, or wax apppearance temperature, obtained for pure-substance waxes may be extended to mixtures of hydrocarbons, thereby generalising the usefulness of the correlation. We apply the colligative equation for freezing point depression to quantify the analogous activity of wax inhibitors. The limits of applicability of an empirical formula that relates wax molecular weight and wax density are examined. We extend the analysis to the high molecular weight asphaltenes.

KW - colligative properties

KW - wax appearance temperature

KW - wax inhibitors

KW - wax specific volume

U2 - 10.2174/1874396X00903010034

DO - 10.2174/1874396X00903010034

M3 - Article

VL - 3

SP - 34

EP - 37

JO - The Open Thermodynamics Journal

JF - The Open Thermodynamics Journal

SN - 1874-396X

ER -