Appeal No. 2003-1529
Application No. 08/499,442
APPENDIX
3. A process for drying a gaseous or liquid mixture by
passing said mixture into an adsorber, the adsorber including a
water adsorption equilibrium zone and a water adsorption mass
transfer zone, the equilibrium zone comprising an upstream alumina
zone and a downstream molecular sieve zone, the mass transfer zone
comprising a downstream portion of the molecular sieve zone, water
concentration in the mass transfer zone varying from zero to the
maximum water concentration at the equilibrium zone, wherein in the
water adsorption equilibrium zone of the adsorber, the ratio Q of
the volume of alumina to that of alumina and of the molecular sieve
is between 0.05 and 0.8 at an instant when water breaks through at
an exit of the adsorber.
17. A process for drying a gaseous or liquid mixture by
passing said mixture into an adsorber, the adsorber including a
water adsorption equilibrium zone comprising an upstream alumina
zone and a downstream molecular sieve zone, the upstream alumina
zone adsorbing water in liquid or gaseous form and the downstream
molecular sieve zone adsorbing water in gaseous form during the
process, a volume ratio of the alumina zone and the molecular sieve
zone being 5 to 80%.
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