Sorbent bed assembly and fuel cell system including same

A fuel processor of a fuel cell system, comprising:

• a first sorbent bed assembly (SBA);
• a second SBA assembly;
• a first four-way valve fluidly connected to a fuel source;
• a second four-way valve fluidly connected to a fuel cell of the fuel cell system;
• and
• conduits configured to fluidly connect the first and second sorbent beds and the first and second valves, wherein:
• when the first valve is in a first position and the second valve is in a first position, the fuel flows through the first valve, the first SBA, the second valve, the first valve, the second SBA, and then to the fuel cell;
• when the first valve is in a second position and the second valve is in a second position, the fuel flows through the first valve, the second SBA, the second valve, the first valve, the first SBA, the second valve, and then to the fuel cell;
• when the first valve is in the second position and the second valve is in the first position, the fuel flows through the first valve, the second SBA, the second valve, and then to the fuel cell, without passing through the first SBA;
• and
• when the first valve is in the first position and the second valve is in the second position, the fuel flows through the first valve, the first SBA, the second valve, and then to the fuel cell, without passing through the second SBA.