Ammonia membrane reactor comprising a composite membrane

A method of processing ammonia comprising:

• flowing ammonia into a reactor comprising a reaction region;
• a permeate region;
• and a composite membrane disposed at a boundary of the reaction region and the permeate region,
• wherein the reaction region comprises a bed filled with a dehydrogenation catalyst for dehydrogenation reaction,
• wherein the dehydrogenation catalyst includes ruthenium carried on a rubidium-doped porous support,
• wherein the composite membrane comprises a support layer including a metal with a body-centered-cubic crystal structure, and a catalyst layer including a palladium (Pd) or a palladium alloy disposed on the support layer,
• wherein the metal with the body-centered-cubic crystal structure includes one or more of vanadium (V), niobium (Nb), or tantalum (Ta), and a surface of the support layer is in contact with the reaction region and a surface of the catalyst layer is in contact with the permeate region,
• converting the ammonia into hydrogen (H2) by the dehydrogenation reaction in the presence of the dehydrogenation catalyst, and
• separating the hydrogen using the composite membrane with the hydrogen entering the permeate region.