A Method for Multicomponent Distillation Sequences with Fewer Columns

Wednesday, November 10, 2010: 8:30 AM
252 A/B Room (Salt Palace Convention Center)
Anirudh A. Shenvi1, Vishesh H. Shah1, Jeremy Zeller1 and Rakesh Agrawal2, (1)School of Chemical Engineering, Purdue University, West Lafayette, IN, (2)School of Chemical Engineering and Energy Center at Discovery Park, Purdue University, West Lafayette, IN

The synthesis of optimal distillation sequences for a given application is a challenging problem in process design. Several researchers have provided solutions for the problem of synthesizing the complete search space of distillation configurations that use exactly (N-1) columns to separate a zeotropic feed mixture into N product streams. However, the search space of all possible distillation configurations that use less than (N-1) columns for an N–component separation has not been completely explored. In this work, we develop a systematic procedure to quickly synthesize the complete search space of distillation configurations using less than (N-1) distillation columns to separate any zeotropic N–component feed into N product streams. We demonstrate the utility of the method to achieve energy savings by applying it to a four-component case study.

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See more of this Session: Advances in Distillation & Absorption III
See more of this Group/Topical: Separations Division