01804nas a2200229   4500008004100000022001400041245008600055210006900141260000800210300001200218490000700230520107600237653001701313653002101330653001201351653001501363653002201378100001701400700001701417700002601434856011401460       2017                        eng d  a0256-249900aStudy of thermally coupled distillation systems for energy-efficient distillation0 aStudy of thermally coupled distillation systems for energyeffici  cJAN  a119-1280 v423 a<p>Distillation is one of the most widely used separation unit operations in process industries, although it is quite energy intensive. In many cases, the enormous energy requirements for distillation make it economically infeasible to carry out the separation. Thermally coupled distillation system (TCDS) is an advanced distillation method that provides significant energy savings of about 30% as compared with conventional distillation column sequences. The most well-known TCDS sequence, the Petlyuk configuration, has some operational challenges due to bidirectional vapour flow, which makes its implementation difficult in two-column mode. To overcome these limitations, a number of unidirectional vapour flow configurations have been proposed in the literature. The work on simulation analysis for such configurations is limited. In this paper, simulation models for two such configurations are developed, analyzed and compared with the Petlyuk and conventional distillation column sequences for separation of equimolar mixture of benzene-toluene-ethylbenzene.</p>10aDistillation10aenergy efficient10aPetlyuk10asimulation10athermally coupled1 aSaxena, Neha1 aMali, Nilesh1 aSatpute, Satchidanand  uhttps://library.ncl.res.in/content/study-thermally-coupled-distillation-systems-energy-efficient-distillation