依據再混合的程度定量估計內隔壁式蒸餾塔的節能效果

Abstract

本論文提出了一個新的觀點，藉由此觀點分析三種不同型式的內隔壁式蒸餾塔，可以直覺地了解，為何內隔壁式蒸餾塔相較於其對應的傳統蒸餾塔架構時，會比較省能。而透過此觀點逐步分析內隔壁式蒸餾塔後，更可以發現內隔壁式蒸餾塔的能耗，與傳統蒸餾塔架構中再混和(remixing)現象之間的關係，進而推導出一系列的解析公式，可針對再混和的程度，估計出內隔壁式蒸餾塔的省能潛能。論文的最後，舉了文獻上常見的三種真實系統作為例子，檢驗這些解析公式的估計結果，並加以討論。

A new framework is introduced to analyze divided wall columns. The framework provides a simple and intuitive understanding of why three different types of divided wall columns save energy when they are compared with corresponding conventional columns. Furthermore, analytical expressions are derived to quantify the potential energy saving of divided wall columns based on remixing. The method is illustrated with some real mixture examples often seen in literature.