Evaluation of the inhibitor selection on wax deposition for Malaysian crude oil

Wax precipitates from crude oil when a fluid is cooled down below its wax appearance temperature (WAT). This particularly happens during the transportation of crude oil in the pipeline system. In this study, chemical inhibitors were chosen to prevent and reduce wax formation using seven different ty...

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Bibliographic Details
Published inPetroleum science and technology Vol. 34; no. 4; pp. 366 - 371
Main Authors Ridzuan, N., Adam, F., Yaacob, Z.
Format Journal Article
LanguageEnglish
Published Taylor & Francis 16.02.2016
Subjects
Acetates
Cold finger temperature
Crude oil
Deposition
Diethanolamines
Fingers
Impellers
Inhibitors
Precipitates
rotation speed of impeller
viscosity
wax deposition
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Summary:Wax precipitates from crude oil when a fluid is cooled down below its wax appearance temperature (WAT). This particularly happens during the transportation of crude oil in the pipeline system. In this study, chemical inhibitors were chosen to prevent and reduce wax formation using seven different types of inhibitors, which are poly (ethylene-co-vinyl acetate) (EVA), poly (maleic anhydride-alt-1-octadecene) (MA), diethanolamine (DEA), cocamide diethanolamine (C-DEA), toluene, acetone, and cyclohexane. The total waxes deposited from the cold finger test are subjected to the type of inhibitor, rotation speed of impeller, and inhibitor concentration. EVA is suggested as the most effective inhibitor based on the amount of wax deposit weight and the value of viscosity. Therefore, this result might be useful for further research work related to wax deposition in the area of crude oil production.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1091-6466
1532-2459
DOI:10.1080/10916466.2015.1127971