A model of wax deposit layer formation

被引：18
作者：
Eskin, Dmitry [1 ]
Ratulowski, John [1 ]
Akbarzadeh, Kamran [1 ]
机构：
[1] Schlumberger DBR Technol Ctr, Edmonton, AB T6N 1M9, Canada
来源：
CHEMICAL ENGINEERING SCIENCE | 2013年 / 97卷
关键词：
Deposition; Diffusion; Modeling; Porous media; Thermal conductivity; Wax; THERMAL-CONDUCTIVITY;
D O I：
10.1016/j.ces.2013.04.040
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A model of wax deposit layer formation is developed. The model is based on a mathematical description of diffusion of wax molecules through a growing porous layer. The deposit layer porosity reduction is caused by the growth of wax crystals, composing porous medium, in a wax-saturated hydrocarbon fluid. The two major model equations are: (1) diffusion of wax molecules through a porous medium with varying porosity; and (2) deposit layer growth rate. The model takes into account a diffusivity reduction with a porosity decrease and a shear-removal effect. The model performance is illustrated by computations of the wax deposition in a laboratory Taylor Couette device. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：311 / 319
页数：9
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