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    STUDIA CHEMIA - Ediţia nr.1-2 din 2001  
         
  Articol:   ELECTRIC POWER CONSUMPTION COST MINIMIZATION IN BRINE ELECTROLYSIS BY ION EXCHANGE MEMBRANE REACTORS.

Autori:  IMRE-LUCACI ARPAD.
 
       
         
  Rezumat:  The brine electrolysis is one of the highest energy consuming industrial electrochemical process, especially electric energy. In many countries are different electric energy costs between day and night to compensate the different consumption demanding in the electric network system. For the brine electrolysis industry it is important to use this situation in its one advantage. There are two main ways to do this:  by a different current load of the reactors between day/night time period;  by using a different number of reactors in the day/night time period. Each variant has positive and negative aspects. In this paper, based on simulations using a mathematical model of an IEM (Ion Exchange Membrane) reactor, the optimization of a brine electrolysis plant is presented, taking into account both possibilities. For this purpose, an earlier presented mathematical model of the IEM reactor was further developed to simulate an entire plant. The objective function of the optimization is the minimization of the electric current costs used in the electrochemical reactors and, in the same time, to preserve the level of daily capacity of products (chlorine, caustic soda, and hydrogen).  
         
     
         
         
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