Patent ID: 8006484

Claim:
A method for reducing emissions using a system having a fuel processor bypass comprising: introducing exhaust into an exhaust pipe, the exhaust pipe connected to a bypass pipe, wherein the bypass pipe comprises an inlet, an outlet, and defines a lumen adapted for the passage of gas therethrough, both the inlet and the outlet of the bypass pipe connecting with the exhaust pipe; introducing the exhaust into a NO x trap located downstream of the bypass pipe outlet, wherein the NO x trap comprises an inlet, an outlet, a NO x absorbing material, and defines a lumen for the passage of gas therethrough, whereby NO x in the exhaust are absorbed by the absorbing material; opening a valve located at the inlet or outlet of the bypass pipe to regenerate the NO x trap, such that the entire exhaust flows through the bypass pipe and then the NO x trap, wherein the valve is configured to move between an open and closed position; injecting fuel into the bypass pipe, upstream of a fuel processor located in the bypass pipe between the inlet and outlet, wherein the fuel processor comprises an inlet, an outlet, a catalytic element, defines at least one lumen adapted for the passage of gas therethrough and produces a reducing mixture comprised of CO and H 2 ; and introducing the reducing mixture into the NO x trap, wherein the NO x trap is located downstream of the bypass pipe outlet; and closing the valve to cut the flow to the bypass pipe while maintaining the flow to the NO x trap.