By International Federation of Automatic Control, C. McGreavy
Provides the newest result of either educational and commercial learn within the regulate, modelling and dynamics of 2 of the main primary elements of all chemical engineering plant. contains contributions on fixed-bed, gas-phase and tubular reactors, thermal cracking furnaces and distillation columns, concerning purposes in all significant parts of chemical engineering, together with petrochemicals and bulk chemical manufacture. comprises fifty one papers.
Read Online or Download Dynamics and Control of Chemical Reactors and Distillation Columns. Selected Papers from the IFAC Symposium, Bournemouth, UK, 8–10 December 1986 PDF
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Additional resources for Dynamics and Control of Chemical Reactors and Distillation Columns. Selected Papers from the IFAC Symposium, Bournemouth, UK, 8–10 December 1986
Several areas in which developments have occurred or are possible are discussed below. Sidestream Columns for Chemical Separations These lags can be reduced but factors other than the design and performance of the control system under normal operation must be considered. For example, is the reflux drum really necessary? In normal operation it almost certainly is not, but problems can arise in upset conditions, and start-up may well be more difficult if that liquid inventory at distillate composition is not available.
For example, in homogeneous Z-N systems such as the solution polymerization of butadiene, there is as yet no agreement on the number, nature, or role of the active catalyst species. Similarly, in heterogeneous systems little knowledge exists about the activity, or role of the active catalyst sites. INTRODUCTION There are many aspects to the control of polymerization reactors. Industrial emphasis has centered around the sequencing and automation of batch and s e m i - batch r e a c t o r s , and the temperature control of the reactors.
Severe cycling, especially when the period of the cycle is greater than the natural period of any of the key column variables, can be due to tray damage, fouling or plugging of the trays, or foaming. Foaming. Isolating foaming as the cause of column misbehavior from other causes is very important since the solution to the problems are quite different. It is very costly and frustrating to shut down a column and examine it for tray damage and find none. It can be very difficult to isolate column behavior caused by foaming from those caused by plugging or tray damage.
Dynamics and Control of Chemical Reactors and Distillation Columns. Selected Papers from the IFAC Symposium, Bournemouth, UK, 8–10 December 1986 by International Federation of Automatic Control, C. McGreavy