Abstract




 
   

IJE TRANSACTIONS A: Basics Vol. 32, No. 1 (January 2019) 18-27    Article in Press

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  APPLICATION OF THE AVRAMI THEORY FOR WAX CRYSTALLISATION OF SYNTHETIC CRUDE OIL
 
A. Hosseinipour, A. Japper-Jaafar, S. Yusup and L. Ismail
 
( Received: July 13, 2018 – Accepted in Revised Form: January 03, 2019 )
 
 

Abstract    Wax crystallisation and deposition from offshore reservoirs have been causing serious problems such as plugged pipelines and reduced production flow rates. This issue is receiving more attention from the researchers and for commercial applications due to the shift in trend from using offshore production facilities to pipelines utilization. The aim of this study is the implementation of the Avrami theory to comprehend the mechanism of wax crystallisation to reveal the morphology of wax crystal using gravimetric and differential scanning calorimetry (DSC) analyses. The experiment values obtained from the Avrami’s theory for both gravimetric and DSC techniques shows that the crystals were one-dimensional with rod-like structures.

 

Keywords    Paraffin, Wax Crystallisation, Differential Scanning Calorimetry, Avrami Theory

 

چکیده   

کریستالیزاسیون موم و رسوب از مخازن دریایی باعث مشکلات جدی مانند انسداد خطوط لوله و کاهش جریان تولید شده است. این موضوع از توجه محققان و برنامه های تجاری به دلیل تغییر روند استفاده از امکانات تولید دریایی به استفاده از خطوط لوله، بیشتر است. هدف از این مطالعه پیاده سازی تئوری آرومی برای درک مکانیسم بلورینگی موم است تا مورفولوژی کریستال موم را با استفاده از تجزیه و تحلیل اسکن کالری سنجی DSC) ) و جاذبه سنجی نشان دهد. مقادیر آزمایشی حاصل از نظریه آرومی برای هر دو تکنیک جاذبه سنجی و DSC نشان می دهد که کریستال ها یک بعدی با ساختارهای میله ای مانند می باشند.

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