Diffusivity of CO2, CH4, C2H6 and N2 in Athabasca bitumen

被引：142
|
作者：
Upreti, SR [1 ]
Mehrotra, AK [1 ]
机构：
[1] Univ Calgary, Dept Chem & Petr Engn, Calgary, AB T2N 1N4, Canada
来源：
CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 2002年 / 80卷 / 01期
关键词：
diffusivity; carbon dioxide; methane; ethane; nitrogen; bitumen; functional; minimization;
D O I：
10.1002/cjce.5450800112
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Experimental data for the diffusivity of carbon dioxide, methane, ethane and nitrogen in Athabasca bitumen are presented in the range 25-90degreesC at 4 and 8 MPa. The diffusivity of these gases has been determined as a function of gas concentration in bitumen using a non-intrusive experimental method. The diffusivity of gas in general is found to increase with temperature and pressure, and is a unimodal function of concentration. A correlation is provided for the average diffusivity of these gases as a function of temperature.
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页码：116 / 125
页数：10
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