NDLI: Non-linear identification of aqueous ammonia binary distillation column based on simple Hammerstein model

Content Provider	IEEE Xplore Digital Library
Author	Nugroho, S. Nazaruddin, Y.Y. Tjokronegoro, H.A.
Copyright Year	2004
Description	Author affiliation: Dept. of Eng., PT. Petrokimia Gresik, Indonesia (Nugroho, S.)
Abstract	Ammonia is an important fluid to produce urea, NPK, ammonium sulfate and other fertilizer products. So, high quality of ammonia at low operating cost is an importance factor. Presently, due to the oversized valve and other dynamic factors, the ammonia stripper as a subsystem of ammonia plant is difficult to be controlled especially during start-up operation. For control redesign purposes, the ammonia stripper which is basically an aqueous ammonia binary distillation column will be identified by a simple quadratic Hammerstein model due to its non-linear characteristics. The experiment was conducted on real-time plant operation of a fertilizer plant in Gresik, East Java, Indonesia. Validation method was also performed to verify the results of identification. The results show how the models represent the dynamics characteristics of the ammonia stripper quite satisfactorily.
Starting Page	118
Ending Page	123
File Size	1087179
Page Count	6
File Format	PDF
ISBN	0780388739
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-07-20
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	ASCC
Subject Keyword	Distillation equipment Energy conservation Production Conductivity measurement Valves Control systems System identification Nonlinear dynamical systems Feeds Fertilizers
Content Type	Text
Resource Type	Article

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