Understanding the dynamics of a batch distillation column with a middle vessel

The dynamic behavior of a batch distillation column with a middle vessel is studied. A detailed mathematical model of a pilot-plant column is developed and validated against experimental data on a highly non-ideal system. The simulated operation includes the column startup phase, during which the empty trays are sequentially filled with liquid from the top down. Then, the model is used to investigate the effect of different operating and design parameters on the column operability and productivity. In particular, it is shown that restrictions exist in the choice of the column operating variables. These restrictions are related to both the total material balance and the component balance. Interactions between the operating parameters may result in unexpected responses of the plant. All the results make clear that the dynamic behavior of a complex batch column is not so easily understandable as the one of conventional batch rectifiers and batch strippers.

[1]  Thomas F. Edgar,et al.  An efficient dynamic model for batch distillation , 1994 .

[2]  Sandro Macchietto,et al.  OPTIMAL OPERATION OF MULTICOMPONENT BATCH DISTILLATION - A COMPARATIVE STUDY USING CONVENTIONAL AND UNCONVENTIONAL COLUMNS , 1994 .

[3]  S. Macchietto,et al.  Design of Operation Policies for Batch Distillation , 1996 .

[4]  Shinji Hasebe,et al.  OPTIMAL DESIGN AND OPERATION OF COMPLEX BATCH DISTILLATION COLUMN , 1992 .

[5]  Massimiliano Barolo,et al.  Some issues in the design and operation of a batch distillation column with a middle vessel , 1996 .

[6]  Massimiliano Barolo,et al.  Simple method of obtaining pure products by batch distillation , 1997 .

[7]  Shinji Hasebe,et al.  Simultaneous Separation of Light and Heavy Impurities by a Complex Batch Distillation Column , 1996 .

[8]  Massimiliano Barolo,et al.  Running Batch Distillation in a Column with a Middle Vessel , 1996 .

[9]  Masaru Noda,et al.  Optimal operation policy for multi-effect batch distillation system , 1997 .

[10]  William L. Luyben,et al.  Practical Distillation Control , 1992 .

[11]  Massimo Morbidelli,et al.  Development of a composition estimator for binary distillation columns. Application to a pilot plant , 1995 .

[12]  Sigurd Skogestad,et al.  Evaluation of Dynamic Models of Distillation Columns with Emphasis on the Initial Response , 1995 .

[13]  U. Diwekar,et al.  Dual composition control in a novel batch distillation column , 1998 .

[14]  Eva Sorensen,et al.  Multivessel batch distillation , 1997 .

[15]  Manfred Morari,et al.  Batch distillation in a column with a middle vessel , 1994 .

[16]  Shinji Hasebe,et al.  COMPARISON OF THE SEPARATION PERFORMANCES OF A MULTI-EFFECT BATCH DISTILLATION SYSTEM AND A CONTINUOUS DISTILLATION SYSTEM , 1995 .

[17]  R. Russell Rhinehart,et al.  Comparison of Model-Based and Conventional Control: A Summary of Experimental Results , 1996 .

[18]  M. Rovaglio,et al.  Role of energy balances in dynamic simulation of multicomponent distillation columns , 1988 .

[19]  E. Gilliland,et al.  The Elements of Fractional Distillation , 2007, Nature.

[20]  Manfred Morari,et al.  Design and operation of a batch distillation column with a middle vessel , 1995 .

[21]  Sigurd Skogestad,et al.  Comparison of regular and inverted batch distillation , 1996 .