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    STUDIA CHEMIA - Issue no. 2 / 2009  
         
  Article:   SCREENING AND RESPONSE SURFACE MODELING OF WATER VAPOR ADSORPTION FROM WET AIR IN PACKED BED OF SILICA GEL USING D-OPTIMAL DESIGN.

Authors:  MARIUS SEBASTIAN SECULA, RODICA DIACONESCU, STELIAN PETRESCU.
 
       
         
  Abstract:   The experimental design methodology was applied for screening and response surface modeling of adsorption of water vapors from air on a fixed bed of silica gel grains. The variables considered were the air flow rate, temperature, air relative humidity and drying time. The D-optimal design allowed developing a quadratic model as a functional relationship between packed-bed adsorption efficiency and the independent variables. It was found that all factors considered have an important effect in the degradation efficiency of the organic matter.

Keywords: D-optimal design, response surface modeling, air drying; adsorption; fixed bed.
 
         
     
         
         
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