Publication detail

Neutralization Process Control

Authors: Krejčí Stanislav | Kašpar Jiří

Year: 2004

Type of publication: článek ve sborníku

Name of source: Proceedings of 6th International Conference Process Control 2004

Publisher name: Univerzita Pardubice

Place: Pardubice

Page from-to: 46

Titles:

Language	Name	Abstract	Keywords
cze	Řízení neutralizačních procesů	Řízení neutralizačních procesů	Neutralizace, řízení pH procesů, strategie řízení
eng	Neutralization Process Control	The control of pH processes is exceedingly important in wide area of production branches - chemistry, biochemistry, agriculture, food industry etc. The most common pH process is the neutralization of an acidic or alkaline waste stream. The objective of most industrial neutralizing operations is to maintain pH in a process within a specific range around the neutralization point. The control of pH may be rather difficult in some cases because of its inherent logarithmic nature as reflected in the titration curve of the process stream, with extreme sensitivity around neutrality where a process gain variation can be over a several order of magnitude. There are alsou other complications associated with every specific system due to its variable buffering capacity, and nonstationary and unknown characteristics of the solution composition. The control of the pH processes is usually based on some algorithms that are designed to deal with these problems i.e. to supress the influence of time varying characteristics and the severe nonlinearity inherent in pH processes.	Neutralization, process control, control strategies

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