Patent ID: 8562929

Claim:
A method for supplying NH 3 to an exhaust gas treatment system comprising: supplying urea to an electrolytic flow cell comprising an inlet, an outlet, a cathode having a first conducting component, an anode having a second conducting component, and an alkaline electrolyte composition in electrical communication with the anode and the cathode, where the alkaline electrolyte composition has a hydroxide concentration of at least 0.01 M or a pH of at least 8; producing ammonia by the electrolytic hydrolysis of urea by applying a voltage difference to the electrolytic flow cell, wherein the voltage difference is applied across the cathode and the anode, wherein the voltage difference is sufficient to effect the electrolytic hydrolysis of urea to produce at least NH 3 ; recovering at least a portion of the NH 3 ; transferring the at least a portion of the NH 3 to the exhaust gas treatment system; and recirculating at least a portion of the alkaline electrolyte composition.