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The Concentration Distribution in The Axial-Flow Adsorber
Author(s): 
Pages: 8-14
Year: Issue:  1
Journal: Low Temperature and Specialty Gases

Keyword:  二维吸附床浓度数值模拟;
Abstract: 采用二维数值模型对变压吸附空分制氧过程吸附床内的氧气浓度分布进行了研究,同时对吸附相中氧气和氮气浓度也进行了探讨.数值结果直观地显示了吸附床内的浓度场及其分布规律,并据此结果分析了吸附床内浓度演变过程.发现,在首个循环结束时氧气浓度可提纯到70%左右;在循环稳定后,传质区长度约占整个吸附床的35%左右,在传质区前沿存在陡峭的浓度波锋面;边流效应的存在使得浓度锋面呈月牙形分布,并且会使壁面过早地穿透...
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