Carbon monoxide oxidation device

Water gas shift reactor or preferential oxidation reactor, which purifies a carbon monoxide containing hydrogen rich reformat gas from carbon monoxide contained in the carbon monoxide containing hydrogen rich reformate gas, wherein the water gas shift reactor or the preferential oxidation reactor comprises a housing, wherein the housing

• a. incorporates an oxidation catalyst, which oxidizes the carbon monoxide of the carbon monoxide containing hydrogen rich reformat gas by means of an oxidizing agent to carbon dioxide,
• b. comprises upstream of the catalyst at least one gas inlet for providing a gas stream (B;
• C) of at least the carbon monoxide containing hydrogen rich reformat gas into the housing,
• c. comprises downstream of the catalyst a gas outlet for exiting purified hydrogen rich gas from the housing, and
• d. incorporates a gas stream perturbation device which is arranged upstream of the catalyst and which is adapted to provide a perturbation in the gas stream, wherein
• the gas stream perturbation device is designed as at least one propeller-shaped plate with a plate portion having a surface facing the gas stream and at least one circumferentially extending blade which is connected to the plate portion and has a radially extending leading edge and a radially extending effluent edge which are axially aligned or overlap each other, wherein a surface defined between leading edge and effluent edge is inclined in relation to the surface of the plate portion with a predetermined blade inclination angle, thereby defining at least one opening in the plate.