Model Validation for the Absorber
In this chapter, the absorption section of two pilot-plant facilities, different in dimensions and operating conditions, is modeled. A discussion on the typical temperature bulge, which gives important indications on the behavior of the absorber, is reported. The Peclet number is evaluated for both the cases with reference to the material and the energy transport and to different characteristic lengths, highlighting that the columns have a plug-flow like behavior. Then, the number of segments analysis is performed in order to obtain the correct representation of the process and investigate the possible effect of the backmixing due to the countercurrent. The proposed model suitably describes the experimental data and particularly the temperature bulge, independently on its location.
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