OPERATIONAL DESIGN AND IMPROVEMENT OF CONVENTIONAL BATCH DISTILLATION AND MIDDLE-VESSEL BATCH DISTILLATION

Startup Operation of a Cyclic Middle Vessel Batch Distillation

Batch distillation is one of the most important unit operations for the small-scale production of specialty and fine chemicals. The so called Middle Vessel Batch Distillation (MVBD) with total reflux offers many advantages compared to conventional batch distillation. It is favourable due to the simultaneous production of three products of high purity. In this work, we present a thorough analysi...

Multicomponent batch distillation column design

Comparison of Regular and Inverted Batch Distillation

-Several alternative strategies have been suggested to increase the productivity of batch distillation. One is the use of inverted columns where the feed is charged to the condenser drum instead of to the reboiler as for regular columns. In the first part of this paper, optimal results in terms of minimum operating time for separations in a regular and an inverted batch column are presented. Th...

Pareto optimal design and operation of multivessel batch distillation

Multivessel batch distillation (MBD) has been proposed and investigated to meet changing demands of the specialty and fine chemistry. This contribution addresses the multiobjective optimisation of a MBD with one intermediate vessel for the first time. The process is highly non-linear and inherent dynamic. Design and operating parameters has been considered simultaneously. The problem formulatio...

Simultaneous Optimal Design and Operation of Multipurpose Batch Distillation Columns

This work presents a robust method for the integrated design and operation of batch distillation whereby optimal column sizing, process flexibility and operating policies are obtained simultaneously based on the complex economic trade-offs between capital investment, production revenue and utility costs. The proposed stochastic framework, which utilises a genetic algorithm and a penalty functio...