Patent ID: 7829046

Claim:
A method comprising: maintaining a scrubber medium at a temperature of less than approximately 100° C., the scrubber medium comprising particles of a reactive metal oxide material having first aerodynamic diameters of less than approximately 250 nm adsorbed onto or absorbed into carrier particles having second aerodynamic diameters in a range of approximately 10 to 250 microns, wherein the reactive metal oxide material accounts for approximately 20% to 30% of a total mass of the scrubber medium; contacting a gas mixture with the scrubber medium, the gas mixture comprising a reactive compound and one or more background compounds, the reactive compound comprising a gas-phase acid or a gas-phase base, the contacting causing the reactive compound to react with the reactive metal oxide material to convert the reactive compound to one or more non-volatile products; and refreshing the scrubber medium by heating the scrubber medium to a temperature above approximately 150° C. and passing an oxidizing gas stream through the scrubber medium to regenerate the scrubber medium by converting the one or more non-volatile products to one or more volatile species.