Minimum time constrained control of acid strength on a sulfuric acid alkylation unit
نویسندگان
چکیده
We detail here the controller of the acid strength that we implemented in the Elf-Antar France re"nery in Feyzin (France). The control technique used is new. It relies on the yatness property of the system to solve a constrained minimum time objective as successive linear-programming problems. This controller is in full service since January 1997. We detail the control technique, including the estimation and numerical problems and then give industrial results over 6 months. 2001 Elsevier Science Ltd. All rights reserved.
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