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A process for the production and use of a molecular sieve blend with improved performance characteristics produced by preparing or obtaining a hydrophilic zeolite, particularly a hydrophilic zeolite 3A with a low SiO2:Al2O3 ratio, preparing or obtaining a hydrophobic silica binder, particularly a hy

A process for the production and use of a molecular sieve blend with improved performance characteristics produced by preparing or obtaining a hydrophilic zeolite, particularly a hydrophilic zeolite 3A with a low SiO2:Al2O3 ratio, preparing or obtaining a hydrophobic silica binder, particularly a hydrophobic colloidal silica, mixing the zeolite with the silica binder to form a mixture, and forming the mixture into the molecular sieve blend.

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1. A process for dehydration of a gaseous or a liquid hydrocarbon feed stream containing water comprising passing the components of the hydrocarbon feed stream over or through a molecular sieve blend produced by a process comprising preparing or obtaining a hydrophilic zeolite;preparing or obtaining

1. A process for dehydration of a gaseous or a liquid hydrocarbon feed stream containing water comprising passing the components of the hydrocarbon feed stream over or through a molecular sieve blend produced by a process comprising preparing or obtaining a hydrophilic zeolite;preparing or obtaining a hydrophobic silica binder comprising a colloidal silica;mixing the hydrophilic zeolite with the hydrophobic silica binder and calcining at about 600° C. to produce a mixture; andforming the molecular sieve blend from the mixture into a shaped body selected from beads, pellets, tablets and extrudates. 2. The process of claim 1, wherein the hydrophilic zeolite comprises a zeolite 3A. 3. The process of claim 1, wherein the hydrophilic zeolite has a SiO2/Al2O3 ratio of less than 50. 4. The process of claim 2, wherein the hydrophilic zeolite has a SiO2/Al2O3 ratio of less than 5. 5. The process of claim 1 wherein the hydrophobic silica binder comprises from about 5% to 30%, by weight, of the molecular sieve blend. 6. The process of claim 1 wherein the hydrophobic silica binder comprises from about 5% to 20%, by weight, of the molecular sieve blend. 7. The process of claim 1 wherein the hydrophobic silica binder comprises from about 5% to 10%, by weight, of the molecular sieve blend. 8. The process of claim 1, wherein the hydrophilic zeolite is ion exchanged with potassium ions to at least about 25 percent. 9. The process of claim 1, wherein the hydrophilic zeolite is ion exchanged with potassium ions to at least about 40 percent. 10. The process of claim 1, wherein the hydrophobic silica binder exhibits a water adsorption capacity after 7.5 hours of less than 5.5 wt.%. 11. The process of claim 1, wherein the hydrophobic silica binder exhibits a water adsorption rate per minute after 60 minutes of less than 0.05 wt.%. 12. The process of claim 1, wherein the hydrophilic zeolite exhibits a water adsorption capacity after 7.5 hours greater than 5.5%. 13. The process of claim 1, wherein the hydrophilic zeolite exhibits a water adsorption rate per minute after 60 minutes greater than 0.05 wt.%. 14. The process of claim 1, wherein the adsorbent blend has a mass transfer value of at least 0.20, as measured by the uptake of water in the presence of ethanol. 15. The process of claim 1, wherein the adsorbent blend exhibits a coking rate of less than 5.0×10−9 mmol/g/min when the adsorbent blend is exposed to a nitrogen gas stream at 450° C. containing 4% by volume of 1,3-butadiene at a flow rate of 60 m/min. 16. The process of claim 1 wherein the selectivity of the mixture of the hydrophilic zeolite with the hydrophobic silica binder is greater than 10° C. 17. The process of claim 1 further comprising adding from about 0.25 to about 10 percent, by weight, of a pore forming agent to the mixture prior to forming the adsorbent blend. 18. A process for removal of water from a gaseous or liquid ethanol stream containing water comprising passing the ethanol stream over or through a molecular sieve blend produced by a process comprisingpreparing or obtaining a hydrophilic zeolite 3A;preparing or obtaining a hydrophobic silica binder comprising a colloidal silica;mixing the zeolite 3A with the hydrophobic silica binder and calcining at about 600° C. to produce a mixture; andforming the molecular sieve blend from the mixture into a shaped body selected from beads, pellets, tablets and extrudates. 19. A process to separate n-paraffins from a mixture of iso-paraffins and n-paraffins comprising passing the mixture over or through a molecular sieve blend produced by a process comprisingpreparing or obtaining a hydrophilic zeolite 3A;preparing or obtaining an hydrophobic silica binder comprising a colloidal silica;mixing the zeolite with the hydrophobic binder and calcining at about 600° C. to produce a mixture; andforming the molecular sieve blend from the mixture into a shaped body selected from beads, pellets, tablets and extrudates. 20. A process for the drying of a cracked, hydrocarbon gas stream comprising passing the cracked hydrocarbon gas stream over or through a molecular sieve blend produced by a process comprisingpreparing or obtaining a hydrophilic zeolite product;preparing or obtaining a hydrophobic silica binder comprising a colloidal silica;mixing the zeolite with the silica binder and calcining at about 600° C. to produce a mixture; andforming the molecular sieve water blend from the mixture into a shaped body selected from beads, pellets, tablets and extrudates.