This paper deals with the advanced control of a side-stream distillation column removing benzene from a reformed gasoline stream. A multivariable control strategy based on two SISO schemes, each controlling the benzene concentration in an outlet stream has been developed. Each SISO loop is a cascade one and consists of a secondary loop devoted to control pilot tray temperature and a primary inferential controller of the benzene composition based on a short-cut physical model. The decoupling between the two single loops was obtained by keeping the internal reflux between the side-stream tray and the bottom tray constant. (C) 2000 Elsevier Science Ltd. All rights reserved.
Inferential control of a sidestream distillation column / A., Bettoni; Bravi, Marco; Chianese, Angelo. - In: COMPUTERS & CHEMICAL ENGINEERING. - ISSN 0098-1354. - STAMPA. - 23:11-12(2000), pp. 1737-1744. [10.1016/s0098-1354(00)00292-1]
Inferential control of a sidestream distillation column
BRAVI, Marco;CHIANESE, Angelo
2000
Abstract
This paper deals with the advanced control of a side-stream distillation column removing benzene from a reformed gasoline stream. A multivariable control strategy based on two SISO schemes, each controlling the benzene concentration in an outlet stream has been developed. Each SISO loop is a cascade one and consists of a secondary loop devoted to control pilot tray temperature and a primary inferential controller of the benzene composition based on a short-cut physical model. The decoupling between the two single loops was obtained by keeping the internal reflux between the side-stream tray and the bottom tray constant. (C) 2000 Elsevier Science Ltd. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
