Output gas enthalpies

Fig. 21.1 s catalyst bed input and output gas enthalpies can be calculated directly on our heatup path-equilibrium curve worksheets, Table 21.1. Table 21.1 s 3rd catalyst bed input gas enthalpy is, for example ... 

Table 21.1 s 3 rd catalyst bed output gas enthalpy is calculated the same way. It is described by the equation ... 

Table 21.1. Bottom half of Table O.l s 3rd catalyst bed heatup path-equilibrium curve intercept worksheet. Input and output gas enthalpies are shown in rows 43 and 44. Note that they are the same. This is because our heatup path calculations assume no convective, conductive or radiative heat loss during catalytic SO2+V2O2 —> SO3 oxidation, Section 11.9. 1st and 2nd catalyst bed enthalpies are calculated similarly - using Tables J.2 and M.2. 

Table 21.1 s cell H44 contains Eq. (21.2) exactly as shown beside it. It shows that Fig. 21.1 s third catalyst bed output gas enthalpy is... 

First and second catalyst bed input and output gas enthalpies are calculated from Tables J.2 and M.2 exactly as described earlier. They are summarized in Table 21.2. 

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