Solve Example 5.3 with the addition of a heat exchanger at each stage so as to maintain isothermal operation of the absorber at: 

(a) 125^οF and 

(b) 150^οF. 

What is the effect of temperature on absorption in this range?

EXAMPLE 5.3 Absorption of Hydrocarbons by Oil. In Figure 5.11, the heavier components in a superheated hydro- carbon gas are to be removed by absorption at 400 psia with a high- molecular-weight oil. Estimate exit vapor and liquid flow rates and compositions by the Kremser method, using estimated component absorption and stripping factors from the entering values of L and V, and the component K-values below based on an average entering temperature of (90+105)/2 = 97.5F.