The present invention provides a method and apparatus for removing trace
contaminants from a gas stream or flue gas. In one embodiment, the present
invention an apparatus for removing a trace contaminant from a gas stream,
comprising a gas duct configured to receive a gas stream comprising a
trace contaminant; a plurality of substrates disposed within the gas duct;
a trace contaminant sorbent disposed on at least a portion of each of the
substrates; an isolation device for separating the portion of each of the
substrates from the gas stream; and a regenerator for regenerating the
trace contaminant sorbent. In another embodiment, the present invention
provides a method for removing a trace contaminant from a gas stream.
