A continuous stirred tank reactor catalyst feeding optimal control system and method

Abstract

The invention discloses a continuous stirred tank reactor catalyst feeding optimal control system and method, the system consists of a continuous stirred tank reactor, a reactant concentration sensor, a catalyst concentration sensor, an analog-to-digital converter, a field bus network, a distributed System, main control room status display module, digital-to-analog converter, catalyst control valve, coolant control valve end, and temperature sensor. The reactant concentration sensor and the catalyst concentration sensor collect the material component concentration in the reactor in real time, and the DCS obtains the optimal control strategy for the catalyst input amount and coolant input amount within the specified production time range by implementing the internal control variable parameterized optimal control algorithm, and It is converted into the opening degree commands of the catalyst control valve and the coolant control valve, so that the catalyst control valve and the coolant control valve make corresponding actions. The invention can minimize the usage amount of catalyst and coolant while ensuring the minimum catalyst concentration, reactant concentration and temperature deviation.

Description

technical field [0001] The invention relates to the production control field of a continuous stirred tank reactor, and mainly relates to an optimal control system for catalyst feeding in a continuous stirred tank reactor, which can automatically control the concentration of reactants, catalyst concentration and reactor temperature in the continuous stirred tank reactor, Minimize catalyst and coolant usage while keeping catalyst concentration, reactant concentration, and temperature from setpoint deviations. Background technique [0002] Continuous stirred tank reactors are widely used in industrial fields such as chemical production, fine chemical industry, biomedicine, and food production. For continuous stirred tank reactors, in the stable production process, the key factors affecting the product quality of reactants are the catalyst concentration and the internal temperature of the reactor. Due to the different production process requirements of different products, optim...

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Problems solved by technology

[0003] At present, optimal control theory and corresponding methods are rarely used in the control system of domestic continuous stirred tank reactors, and the parameters in the controller are often set by experience

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