General Component Balance

The general component- balance around a section of stages from stage n to the top of the column is... 

General Component Balance For a spherical adsorbent particle ... 

Application of the general component balance, Equation (1.6), to a steady-state flow system gives... 

A differential balance written for a vanishingly small control volume, within which t A is approximately constant, is needed to analyze a piston flow reactor. See Figure 1.4. The differential volume element has volume AV, cross-sectional area A and length Az. The general component balance now gives... 

For simplicity of discussion and notation, we will refer to one phase as being liquid and the other phase as being gas. The gas phase flows upward in the -f-z-direction. The liquid phase may flow upward (cocurrent) or downward. A steady-state but otherwise general component balance gives... 

By simplifying the general component balance of Sec. 1.2.4, the mass balance for a batch reactor becomes... 

The general component balance for a well-mixed tank reactor or reaction region can be written as... 

The general component balance form of equation gives... 

These equations follow directly from the steady-state version of the general component balance, Equation 1.6. The reaction terms are evaluated at the outlet concentrations since everything inside the reactor has this composition. The set of component balances can be summarized as... 

This balance is a special case of the general component balance in Eq. 2-7. 

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