Record number :
Title of article :
Simultaneous desorption–crystallization of CO2–CaCO3 in multi-stage flash (MSF) distillers
Author/Authors :
Aiman Eid Al-Rawajfeh، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
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Abstract :
In this work, the desorption–crystallization of CO2–CaCO3 in MSF distillers was simulated by coupling mass transfer with chemical reaction and correlating the CaCO3 crystallization rates to the CO2 release rates. The model was applied to two 20-stage reference MSF once-through and recycles distillers. The CO2 release rates decreased exponentially from the first stage to the last stage. The CO2 release rates increased with increasing top brine temperature (TBT) and so CaCO3 deposition rates did. The CaCO3 deposition rates increased by 76.9, 102.5 and 123.0 g per ton distillate at 90, 100 and 110 °C, respectively. This corresponded to fouling resistance of 0.64, 0.83 and 1.00 m2K/kW, respectively. The results were fully discussed and interpreted.
Keywords :
MSF distillers , MODELING , CaCO3 scale formation , Fouling resistance , CO2 desorption
Journal title :
Chemical Engineering and Processing: Process Intensification
Serial Year :
Link To Document :