In this paper, a general dynamic model of a pseudo-homogeneous catalytic plug flow reactor (PFR) is developed, which does not apply the traditional assumption of negligible difference between enthalpy and internal energy inside its energy balance. Such a model is then compared to a second dynamic PFR model, whose energy conservation equation identifies internal energy with enthalpy. The aim is that of quantitatively investigating the real suitability of the identification of these two thermodynamic quantities (internal energy and enthalpy) in PFR modeling problems. The Claus process is selected as a meaningful case study for the aforementioned purposes.
Enthalpy as internal energy in plug flow reactor models : a long-lasting assumption defeated and its effects on models predictions in dynamic regime / F. Rossi, E.M. Speelmanns, T. Barz, C. Pirola, G. Wozny, F. Manenti. - In: CHEMICAL ENGINEERING TRANSACTIONS. - ISSN 2283-9216. - 43:(2015), pp. 1537-1542. (Intervento presentato al 12. convegno International Conference on Chemical and Process Engineering (ICheaP) tenutosi a Milano nel 2015) [10.3303/CET1543257].
Enthalpy as internal energy in plug flow reactor models : a long-lasting assumption defeated and its effects on models predictions in dynamic regime
C. Pirola;
2015
Abstract
In this paper, a general dynamic model of a pseudo-homogeneous catalytic plug flow reactor (PFR) is developed, which does not apply the traditional assumption of negligible difference between enthalpy and internal energy inside its energy balance. Such a model is then compared to a second dynamic PFR model, whose energy conservation equation identifies internal energy with enthalpy. The aim is that of quantitatively investigating the real suitability of the identification of these two thermodynamic quantities (internal energy and enthalpy) in PFR modeling problems. The Claus process is selected as a meaningful case study for the aforementioned purposes.File | Dimensione | Formato | |
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