| abstract |
Compositions comprising boron-promoted reducible metal oxides (expecially reducible oxides of Mn) and optionally containing alkali and alkaline earth metal components are disclosed, as well as use thereof for hydrocarbon conversions characterized by formation of byproduct water. Particular processes comprise the conversion of methane to higher hydroca rbons and the dehydrogenation of dehydrogenatable hydrocarbons, e.g., dehydrogenation of C₂-C₅ alkanes to form the corresponding olefins. |