Feed gas contaminant removal in ion transport membrane systems

摘要

Method for gas purification comprising (a) obtaining a feed gas stream (1417) containing one or more contaminants selected from the group consisting of volatile metal oxy-hydroxides, volatile metal oxides, and volatile silicon hydroxide; (b) contacting the feed gas stream with a reactive solid material in a guard bed (1701,1703) and reacting at least a portion of the contaminants with the reactive solid material to form a solid reaction product in the guard bed; and (c) withdrawing from the guard bed a purified gas stream.