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

被引：65

作者：

Jiang, Z

Hutchinson, JM

Imrie, CT ^{[1
]}

机构：

[1] Univ Aberdeen, Dept Chem, Old Aberdeen AB24 3UE, Scotland

[2] Univ Aberdeen, Scottish Offshore Mat Ctr, Old Aberdeen AB24 3UE, Scotland

[3] Univ Aberdeen, Dept Engn, Old Aberdeen AB24 3UE, Scotland

来源：

FUEL | 2001年 / 80卷 / 03期

关键词：

wax appearance temperature; temperature modulated differential scanning calorimetry; crude oils;

D O I：

10.1016/S0016-2361(00)00092-2

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 [动力工程及工程热物理]; 0820 [石油与天然气工程];

摘要：

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.

引用

页码：367 / 371

页数：5

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