| abstract |
Dehydrogenation processes using a catalyst composition which, preferably comprises a glass substrate, with one or more functional surface active constituents integrated on and/or in the substrate surface. A substantially nonmicroporous substrate having mesopores and macropores, has (i) a total surface area between about 5 m2/g and 300 m2g; and (ii) a predetermined isoelectric point (IEP) obtained in a pH range less than or equal to 14, preferably less than or equal to 7.8 and more preferably less than or equal to 6.0, but greater than 0. At least one catalytically-active region may be contiguous or discontiguous and has a mean thickness less than or equal to about 30 nm, preferably less than or equal to 20 nm and more preferably less than or equal 10 nm. Preferably, the substrate is a glass composition having a SARCNa less than or equal to about 0.5. |