Sulfur-Resistant Palladium or Palladium-Alloy Membranes for Hydrogen Separation

Description:

Hydrogen separation membranes are important for the purification of hydrogen for use in the production of chemicals, the refining of petroleum, and in energy conversion devices such as fuel cells. Among the best membranes are palladium membranes, but these are susceptible to poisoning by sulfur. Sulfur is a common contaminant in feedstocks for hydrogen production such as natural gas, and petroleum products, coal, and some biomass sources. This invention provides materials and methods of preparation of sulfur-tolerant membranes.