Source gas conduit with sorbent coating for adsorbing gases from gas stream, with related method

An apparatus comprising:

• a gas path for transmitting a gas stream from a power generation system to an external environment;
• a plurality of heat exchangers within the gas path and having an interior configured to transmit a heat exchange medium;
• a plurality of source gas conduits within the gas path coupled to an exterior of one of the plurality of heat exchangers and configured to transmit the gas stream therethrough, wherein each of the plurality of source gas conduits is in thermal communication with at least one of the plurality of heat exchangers and extends substantially in parallel with the plurality of heat exchangers;
• and,
• a plurality of interior sidewalls within at least one of the plurality of source gas conduits, each of the plurality of interior sidewalls having a sorbent coating thereon, wherein the sorbent coating is configured to adsorb a compound from the gas stream.

A method comprising:

• transmitting a heat exchange medium through an interior of a heat exchanger;
• and,
• transmitting a gas stream through a plurality of source gas conduits in thermal communication with the heat exchanger, wherein each of the plurality of source gas conduits is in thermal communication with the heat exchanger such that the heat exchange medium affects a temperature of a sorbent coating within the plurality of source gas conduits
• wherein the transmitted gas stream reacts with the sorbent coating within each of the plurality of source gas conduits to adsorb a compound from the gas stream