Interpreting Design of an Ideal Heat-Integrated Distillation Column through Exergy Analysis

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Masaru Nakaiwa²  Kejin Huang²  Keigo Matsuda²  Takeichiro Takamatsu¹  Koichi Iwakabe³ 

[1] Professor Emeritus, Kyoto University;Research Institute for Innovation in Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST);Department of Chemical Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology

关键词: Distillation;    Exergy;    Heat Integration;    Process Design;    Parametric Analysis;   

DOI  :  10.1252/jcej.39.963

来源: Maruzen Company Ltd

【 摘 要 】

References(41)Cited-By(9)Exergy analysis of an ideal heat-integrated distillation column is conducted in this paper. It is found that the process is most favourable to the separation of binary close-boiling mixtures. Pressure elevation from stripping section to rectifying section appears to be a critical design variable that can affect the thermodynamic efficiency of the process. Feed composition presents almost no effect upon internal heat integration between the rectifying section and the stripping section. Although an implicit limitation has been imposed on the process throughput, it can be obviated through a careful trade-off between capital investment and operating cost during process development. Comparison against a conventional distillation column is also conducted, which shows the great potential of internal heat integration between the rectifying section and the stripping section.

【 授权许可】

Unknown