An Alternative Structure of a Fully Thermally Coupled Distillation Column for Improved Operability

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Young Han Kim¹ 

[1] Department of Chemical Engineering, Dong-A University

关键词: Thermally Coupled Distillation;    Modified Petlyuk Column;    Petlyuk Column Operation;    Improved Operability;    Multivariable Control;   

DOI  :  10.1252/jcej.36.1503

来源: Maruzen Company Ltd

【 摘 要 】

References(18)Cited-By(10)The operation of a fully thermally coupled distillation column (FTCDC) is known to be difficult, which prevents wide application of the column. By separating the main column of the FTCDC into two sections the transfer of material between the two sections is disconnected, while heat transfer is sustained by installing a heat exchanger between the sections as a substitute of a reboiler of the upper section and a condenser of the lower section. It is expected that the modification of the FTCDC improves column operability with the maintained benefit of high thermodynamic efficiency of the original FTCDC.The structural analysis and design detail of the modified column are addressed here, and the design outcome is compared with the original column. In addition, the operability of the new column is examined from the evaluation of various multivariable controllability indices. The comparison of the indices with those of the original column indicates the improved operability.

【 授权许可】

Unknown