Exhaust gas purification system

Abstract

An exhaust gas purification system that is equipped, from an upstream side toward downstream side through which an exhaust gas flows, with a plasma reactor and a NOx selective reduction catalyst unit having a NOx selective reduction catalyst layer acting on the exhaust gas, and which system provides a reducing agent adding means adding a reducing agent to the exhaust gas at an upstream side of the plasma reactor, wherein the NOx selective reduction catalyst layer comprises nickel and a NOx selective reduction catalyst or wherein the NOx selective reduction catalyst layer contains γ-alumina that supports magnesium or wherein the NOx selective reduction catalyst unit comprises a first purification unit where an exhaust gas via the plasma reactor is introduced, and a second purification unit where an exhaust gas via the first purification unit is introduced.

Dependencies are inferred from the claim text.