4. Optimal Operation and Control of DWC

  1. Anton Alexandru Kiss

Published Online: 2 APR 2013

DOI: 10.1002/9781118543702.ch4

Advanced Distillation Technologies: Design, Control and Applications

Advanced Distillation Technologies: Design, Control and Applications

How to Cite

Kiss, A. A. (2013) Optimal Operation and Control of DWC, in Advanced Distillation Technologies: Design, Control and Applications, John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/9781118543702.ch4

Publication History

  1. Published Online: 2 APR 2013
  2. Published Print: 12 MAR 2013

ISBN Information

Print ISBN: 9781119993612

Online ISBN: 9781118543702

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Keywords:

  • case studies;
  • control guidelines and rules;
  • control structures;
  • degrees of freedom analysis;
  • dynamic simulations;
  • energy efficiency;
  • optimal operation;
  • PID control

Summary

The advantages of DWC are main drivers for the commercial implementation. But just as with any other process intensification technique, there are concerns that the benefits of DWC are obtained at the cost of lack of controllability and consequently flexibility in operation. This chapter addresses the control and optimal operation, showing that DWC units have good controllability properties, provided that an appropriate control structure is implemented. A literature review is also included – covering multi-loop PID control strategies (e.g., three- or four-point control structures, DB/LSV, DV/LSB, LB/DSV, and LV/DSB) and multi-input multi-output (MIMO) controllers. Two industrial case studies – pentane–hexane–heptane and BTX separation – illustrate the main issues related to the control and energy efficient operation of a DWC.