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    STUDIA CHEMIA - Issue no. 2 / 2006  
         
  Article:   MODELING AND SIMULATION OF THE AMMONIA ABSORPTION PROCESS IN SODIUM CHLORIDE SOLUTION USING CHEMCAD.

Authors:  CĂLIN-CRISTIAN CORMOŞ, ANA-MARIA CORMOȘ, PAUL ŞERBAN AGACHI. 		 
       
         
  Abstract:  In this paper the mathematical modeling and the simulation results for ammonia absorption in sodium chloride solution (brine) have been presented. The ammoniacal brine is used to obtain sodium bicarbonate and sodium carbonate in soda ash plants (according to the Solvay process). The ammonia absorption process is performed in the absorption columns sequence. Because the absorption process is an exothermic process, the absorption columns are provided with cooling systems. Modeling and simulation of the ammonia absorption in sodium chloride solution were done using ChemCAD software package. The evolutions of the process parameters were studied during the absorption process. The model and the simulation results proved to be a reliable tool for analyzing the absorption processes and can be used to improve the real plant operation.  
         
     
         
         
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