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    STUDIA CHEMIA - Issue no. 1 / 2005  
         
  Article:   MODELING AND SIMULATION OF THE SCRUBBING UNIT WASTE INCINERATION PLANT.

Authors:  ANA-MARIA CORMOȘ, CĂLIN-CRISTIAN CORMOŞ, ANTON FRIEDL, PAUL ŞERBAN AGACHI. 		 
       
         
  Abstract:  In many incineration processes, especially in waste incineration plants, the resulting flue gas contains acid components such as sulfur dioxide (SO2) and hydrogen chloride (HCl) that have to be removed to meet environmental standards. A scrubbing with alkaline solution (sodium hydroxide or calcium hydroxide) is used as absorption liquor to reduce the content of HCl and SO2 of the flue gas coming from waste incineration plants. The absorption process is done in two absorption columns. In the first column the hydrochloric acid (HCl) content of flue gas is reduced at pH value of 1. Second absorption column uses a pH of 8 to reduce sulfur dioxide (SO2). Simulation of the Scrubbing Unit Waste Incineration Plant was done using ChemCAD software package. The evolutions of the process parameters were studied during the scrubbing process. The model and the simulation results proved to be a reliable tool for analyzing the process of removing HCl and SO2 from gaseous emissions coming from waste incineration plants.  
         
     
         
         
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