Page 224 - Gas Adsorption Equilibria

210 Chapter 4

Hence this quantity can be calculated numerically. From it, masses
can be determined by the relations

with

being the mass concentrations of the gas mixture originally supplied to the
adsorption chamber.

Also eqs. (4.41) and (4.44) provide two equations for the sorptive gas
masses, an iterative solution of which is

From these expressions the Gibbs excess masses adsorbed can be calculated
via the mass balances (4.45) as

Numerical iteration in eqs. (4.49) should begin by choosing for the
compressibility factor (Z) its ideal gas value, i. e. Z = 1. By inserting resulting