Estimation of theoretical stages of Heat Integrated Distillation column(HIDiC)

• Main Authors: Chi-Tsung Chen, 陳麒聰
• Other Authors: 李亮三
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/92998890380573946193

碩士 === 國立中央大學 === 化學工程與材料工程研究所 === 95 === In the convectional distillation column, the temperature profile of the rectifying section is lower than that of the stripping section. The principle of the Heat Integrated Distillation Column, generally called as HIDiC, is the internal heat integration between the rectifying and the stripping sections of a distillation column by adding a compressor to increase the temperature of the rectifying section. In general, if the separation of two components is specified, the number of theoretical stages of a distillation column could be calculated by the McCabe-Thiele method or Ponchon-Savarit method during the preliminary design stage. Several HIDiC design data, such as, number of theoretical stages, feed conditions, reboiler duty, internal heat transfer, configuration, etc., can easily be interpreted in the enthalpy-concentration diagram (abbreviated as Hxy diagram) were discussed in this study. Besides, a preliminary HIDiC design procedure using Hxy diagram is also proposed in this study. The graphical estimation of internal stages of HIDiC by the Ponchon-Savarit method has been applied to two binary systems, benzene-toluene and methanol-water, and were compared to the literature.