METHOD FOR AUTOMATIC CONTROL OF SYNTHESIS REACTOR FOR SUSPENSION POLYMERISATION OF STYRENE Russian patent published in 2014 - IPC G05B15/00 C08F10/00 

FIELD: physics; control.

SUBSTANCE: invention relates to automatic control systems. The invention can be used in automating operation of polymerisation reactors, having one or more control loops. The disclosed dynamic model of the process of suspension polymerisation of styrene consists of kinetic equations and a heat balance equation. A system for controlling a polymerisation process using correction of control parameters consists of two loops. The first loop provides a given rotary speed of a mixer using a controller. The second loop provides stabilisation of the temperature of the reaction mixture within the reactor using a controller. The loop for controlling the rotary speed of the reactor mixer includes correction of the given rotary speed depending on multiple quantities. The first quantity received from a control object is the control action of the temperature controller. The second quantity is calculated in a mathematical model based on general kinetic, thermal and hydrodynamic relationships of the process of suspension polymerisation of styrene. The difference between said values is transmitted to a correction unit which generates a correcting action which is transmitted to an adder, where it acts on the value of the given rotary speed of the mixer.

EFFECT: improved quality of controlling a processing facility by selecting correction of dynamically effective control channels and inclusion thereof in operation depending on the state of the control object described by a real dynamic model.

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