A PROCESS FOR THE REMOVAL OF DINITROGEN OXIDE IN PROCESS OFF-GAS

Process for the removal of nitrous oxide (N2O) contained in a process off-gas in an axial flow reactor comprising the steps of(a) adding an amount of reducing agent into the process off-gas;(b) in a first stage passing in axial flow direction the process off-gas admixed with the reducing agent through a first monolithic shaped catalyst active in decomposing nitrous oxide by reaction with the reducing agent to provide a gas with a reduced amount of nitrous oxide and residual amounts of reducing agent; and(c) in a second stage passing the gas with a reduced amount of nitrous oxide and residual amounts of the reducing agent in axial flow direction through a second monolithic shaped catalyst active in oxidation of the residual amounts of the reducing agent.