| abstract |
An active system for regenerating a NO X adsorber and a particulate filter, the system comprising a fuel source, a reformer for generating hydrogen and carbon monoxide in fluid communication with the fuel source, a first valve, a second valve, and a third valve in fluid communication with the reformer, an oxidation catalyst, a NO X adsorber located downstream from the oxidation catalyst, a particulate filter located downstream from the NO X adsorber; and wherein the first valve, the second valve, and the third valve control fluid flow from the reformer to the oxidation catalyst, the NO X adsorber, and the particulate filter. |