Driving force distribution and exergy loss in the thermodynamic analysis of distillation columns
Driving force distribution and exergy loss in the thermodynamic analysis of distillation columns
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DOI：
10.1016/s0098-1354(97)87555-2
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发表时间：
1997-05
影响因子：
4.3
通讯作者：
R. Zemp;S. Faria;M. Maia
中科院分区：
文献类型：
--
作者：
R. Zemp;S. Faria;M. Maia
本文提出了一种新的精馏过程能量效率分析方法。该方法是基于对柱中驱动力分布的分析，由跨阶段的温度和组成变化给出。火用平衡，传统上只适用于整个塔，适用于塔的每一个阶段。其结果是描述塔中驱动力分布的有效能损失分布。然后使用有效能损失分布的形状来识别有益的柱修改。显示了5组分色谱柱的结果。
In this work a new procedure for the analysis of the energetic efficiency of distillation processes is presented. The method is based on the analysis of the distribution of driving forces in the column, given by the temperature and composition change across a stage. The exergy balance, traditionally applied only to the whole column, is applied to each stage of the column. The result is the exergy loss profile, which describes the driving force distribution in the column. The shape of the exergy loss profile is then used to identify beneficial column modifications. Results are shown for a 5-component column.