Measurement of the wax appearance temperatures of crude oils by temperature modulated differential scanning calorimetry

Z. Jiang; J. M. Hutchinson; Corrie Thomas Imrie

doi:10.1016/S0016-2361(00)00092-2

Measurement of the wax appearance temperatures of crude oils by temperature modulated differential scanning calorimetry

Z. Jiang, J. M. Hutchinson, Corrie Thomas Imrie

Chemistry

University of Aberdeen

Research output: Contribution to journal › Article › peer-review

52 Citations (Scopus)

Abstract

Temperature modulated differential scanning calorimetry (TMDSC) is used for the first time to measure the wax appearance temperature (WAT) of crude oil samples. The commercial implementation of TMDSC chosen for this study is alternating differential scanning calorimetry (ADSC) marketed by Mettler-Toledo. We show that changes in the ADSC signals exhibit excellent correlations with WATs measured using conventional differential scanning calorimetry, DSC. For oil samples having low wax contents, ADSC is a more sensitive technique for identifying the onset of wax crystallisation and, specifically, the phase angle between the heating rate and heat how modulations is extremely sensitive to this process. (C) 2001 Elsevier Science Ltd. All rights reserved.

Original language	English
Pages (from-to)	367-371
Number of pages	5
Journal	Fuel
Volume	80
Issue number	3
Early online date	22 Dec 2000
DOIs	https://doi.org/10.1016/S0016-2361(00)00092-2
Publication status	Published - Feb 2001

Bibliographical note

We are please to acknowledge support from the Scottish Higher Education Funding Council for the Research Development Grant used to establish the Scottish Offshore Materials Centre.

Keywords

wax appearance temperature
temperature modulated differential scanning calorimetry
crude oils

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Cite this

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title = "Measurement of the wax appearance temperatures of crude oils by temperature modulated differential scanning calorimetry",

abstract = "Temperature modulated differential scanning calorimetry (TMDSC) is used for the first time to measure the wax appearance temperature (WAT) of crude oil samples. The commercial implementation of TMDSC chosen for this study is alternating differential scanning calorimetry (ADSC) marketed by Mettler-Toledo. We show that changes in the ADSC signals exhibit excellent correlations with WATs measured using conventional differential scanning calorimetry, DSC. For oil samples having low wax contents, ADSC is a more sensitive technique for identifying the onset of wax crystallisation and, specifically, the phase angle between the heating rate and heat how modulations is extremely sensitive to this process. (C) 2001 Elsevier Science Ltd. All rights reserved.",

keywords = "wax appearance temperature, temperature modulated differential scanning calorimetry, crude oils",

author = "Z. Jiang and Hutchinson, {J. M.} and Imrie, {Corrie Thomas}",

note = "We are please to acknowledge support from the Scottish Higher Education Funding Council for the Research Development Grant used to establish the Scottish Offshore Materials Centre.",

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T1 - Measurement of the wax appearance temperatures of crude oils by temperature modulated differential scanning calorimetry

AU - Jiang, Z.

AU - Hutchinson, J. M.

AU - Imrie, Corrie Thomas

N1 - We are please to acknowledge support from the Scottish Higher Education Funding Council for the Research Development Grant used to establish the Scottish Offshore Materials Centre.

PY - 2001/2

Y1 - 2001/2

N2 - Temperature modulated differential scanning calorimetry (TMDSC) is used for the first time to measure the wax appearance temperature (WAT) of crude oil samples. The commercial implementation of TMDSC chosen for this study is alternating differential scanning calorimetry (ADSC) marketed by Mettler-Toledo. We show that changes in the ADSC signals exhibit excellent correlations with WATs measured using conventional differential scanning calorimetry, DSC. For oil samples having low wax contents, ADSC is a more sensitive technique for identifying the onset of wax crystallisation and, specifically, the phase angle between the heating rate and heat how modulations is extremely sensitive to this process. (C) 2001 Elsevier Science Ltd. All rights reserved.

AB - Temperature modulated differential scanning calorimetry (TMDSC) is used for the first time to measure the wax appearance temperature (WAT) of crude oil samples. The commercial implementation of TMDSC chosen for this study is alternating differential scanning calorimetry (ADSC) marketed by Mettler-Toledo. We show that changes in the ADSC signals exhibit excellent correlations with WATs measured using conventional differential scanning calorimetry, DSC. For oil samples having low wax contents, ADSC is a more sensitive technique for identifying the onset of wax crystallisation and, specifically, the phase angle between the heating rate and heat how modulations is extremely sensitive to this process. (C) 2001 Elsevier Science Ltd. All rights reserved.

KW - wax appearance temperature

KW - temperature modulated differential scanning calorimetry

KW - crude oils

U2 - 10.1016/S0016-2361(00)00092-2

DO - 10.1016/S0016-2361(00)00092-2

M3 - Article

SN - 0016-2361

VL - 80

SP - 367

EP - 371

JO - Fuel

JF - Fuel

IS - 3

ER -

Measurement of the wax appearance temperatures of crude oils by temperature modulated differential scanning calorimetry

Abstract

Bibliographical note

Keywords

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