Lewis acid base pairs as highly active catalytic sites for hydrogenation and dehydrogenation processes

A method of treating a reactant stream, comprising:

• treating the reactant stream with a MOx catalyst and a trap, wherein the trap removes an impurity from the reactant stream, the impurity comprising oxygen (O2), water (H2O), hydrogen sulfide (H2S), carbon dioxide (CO2), carbon monoxide (CO), nitrogen (N2), a sulfur containing compound, methanol, a ketone, an inorganic nitrogen compound, an organic nitrogen compound, an oxygenate, or a combination thereof;
• wherein the MOx catalyst has a surface with a M-O site of the Lewis type and of balanced acid-base strength, and
• wherein the MOx catalyst has a BET surface area of at least about 75 m2/gram.