Abstract: A system for mixing exhaust gas components is provided. The system may include an exhaust passage and a substantially enclosed distribution chamber disposed within the exhaust passage. The distribution chamber may include an outer wall defining a chamber volume and at least one opening disposed in the outer wall configured to provide fluid communication between the chamber volume and the exhaust passage. An additive supply device may be configured to supply at least one exhaust gas additive to the chamber volume.

Abstract: A power generation aftertreatment system includes a duct system, mixing vanes and a straightening vane. The duct system has a first end and a second end spaced from the first end. The duct system also has an elbow located between the first end and the second end. The elbow is configured to change a direction of flow of a fluid contained within the duct system. The mixing vanes are connected to the duct system and are in contact with the fluid contained within the duct system. The straightening vane is connected to the duct system between the elbow and the second end of the duct system. The straightening vane is in contact with the fluid contained within the duct system.