The separation of propane and propylene is accomplished by distillation, but at the expense of more than
Question:
The separation of propane and propylene is accomplished by distillation, but at the expense of more than 100 trays and a reflux ratio of greater than 10. Consequently, the use of adsorption has been investigated in a number of studies. Javelin and Fair [Ind. Eng. Chem. Research, 32,2201-2207 (1993)] measured adsorption-equilibrium data at 25?C for three different zeolite molecular sieves (ZMSs) and activated carbon. The data were fitted to the Langmuir isotherm with the following results:
where q and qm are in mmol/g and p is in bar.(a) Which component is most strongly adsorbed by each of the adsorbents?(b) Which adsorbent has the greatest adsorption capacity?(c) Which adsorbent has the greatest selectivity?(d) Based on equilibrium considerations, which adsorbent is best for theseparation?
Step by Step Answer:
a The Langmuir equation is q Kq m p 1 Kp At high pressure q approaches q m Thus ...View the full answer
