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    STUDIA CHEMIA - Issue no. 1-2 / 2001  
         
  Article:   OPTIMAL CONTROL OF BRINE ELECTROLYSIS IN ION EXCHANGE MEMBRANE REACTORS.

Authors:  IMRE-LUCACI ARPAD. 		 
       
         
  Abstract:  In an earlier work an optimal management of brine electrolysis plan was presented to minimize the electric energy costs by taking into account the different electric energy costs between day and night[1]. This is maintained by the national electric energy suppliers to compensate the different consumption demanding in the electric network system between day and night period of the day. For the brine electrolysis industry it is important to use this situation in its one advantage. The main way to do this is by varying the current load of the reactors between day/night time period in order to minimize the cost of electric energy. In this paper, based on simulations using a mathematical model of an IEM (Ion Exchange Membrane) reactor, the optimal control of a brine electrolysis plant is presented, taking into account these possibilities. By simulation, it is proved that Model Predictive Control (MPC) of the electrochemical reactors can be used to apply the results obtained by the optimization algorithm. It is possible to estimate that the electric energy cost savings obtained by this way can be between 5 to 20%, depending by the ratio between day/night energy costs and the ratio between the current daily production and the nominal daily capacity of the plant.  
         
     
         
         
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