Minimum time constrained control of acid strength on a sulfuric acid alkylation unit

Authors
Petit, N Creff, Y Lemaire, L Rouchon, P
Citation
N. Petit et al., Minimum time constrained control of acid strength on a sulfuric acid alkylation unit, CHEM ENG SC, 56(8), 2001, pp. 2767-2774
Citations number
9
Categorie Soggetti
Chemical Engineering
Journal title
CHEMICAL ENGINEERING SCIENCE
ISSN journal
00092509 → ACNP
Volume
56
Issue
8
Year of publication
2001
Pages
2767 - 2774
Database
ISI
SICI code
0009-2509(200104)56:8<2767:MTCCOA>2.0.ZU;2-#
Abstract
We detail here the controller of the acid strength that we implemented in t he Elf-Antar France refinery in Feyzin (France). The control technique used is new. It relies on the flatness property of the system to solve a constr ained minimum time objective as successive linear-programming problems. Thi s controller is in full service since January 1997. We detail the control t echnique, including the estimation and numerical problems and then give ind ustrial results over 6 months. (C) 2001 Elsevier Science Ltd. All rights re served.