We will now use the binary equilibrium data to develop graphical and analytical procedures to solve the combined equilibrium, mass balance and energy balance equations. Mass and energy balances are written for the balance envelope shown as a dashed line in Figure 2-1. For a binary system there are two independent mass balances. The standard procedure is to use the overall mass balance,
and the component balance for the more volatile component,
The energy balance is
where hF, Hv, and hL are the enthalpies ...