NOVELTY - A device for removing carbon monoxide (CO) from hydrogen-rich gas comprises a fixed bed reactor (22), platinum/ gamma -aluminum oxide (Pt/ gamma -Al2O3) catalyst (14), gamma -Al2O3 particle, an air distributor (3), node thermoelectric couple (5), vapor jacket (11) and insulating layer (12). The fixing bed reactor comprises reactor barrel (10), upper flange (17) and lower flange (18). The reactor cylinder is respectively connected with the upper flange and the lower flange by bolt, where the flange is set with a raw material gas inlet pipe. The lower flange is set with a product gas outlet pipe.    USE - For removing carbon monoxide from hydrogen-rich gas used in proton exchange membrane fuel cell.    ADVANTAGE - The device is capable of directly connecting fossil fuel; and is capable of reforming the hydrogen-rich synthesis gas generated by hydrogen preparing, with high efficiency, fast and safe starting speed, convenient and easy mounting and dismounting, small volume and small occupation space.    DETAILED DESCRIPTION - A device for removing carbon monoxide (CO) from hydrogen-rich gas comprises a fixed bed reactor (22), Pt/ gamma -Al2O3 catalyst (14), gamma -Al2O3 particle, an air distributor (3), node thermoelectric couple (5), vapor jacket (11) and insulating layer (12). The fixing bed reactor comprises reactor barrel (10), upper flange (17) and lower flange (18). The reactor cylinder is respectively connected with the upper flange and the lower flange by bolt, where the flange is set with a raw material gas inlet pipe. The lower flange is set with a product gas outlet pipe. The Pt/ gamma -Al2O3 catalyst and gamma -Al2O3 particle are filled in reactor. The fixing bed reactor is set with an air distributor and a multiple-node thermoelectric couple. The air distributor opening is set on Pt/ gamma -Al2O3 catalyst bed layer. The multi-point thermocouple measuring point is on the Pt/ gamma -Al2O3 catalyst. The reactor cylinder is covered by the steam jacket, where the lower part of steam jacket is connected with the steam inlet pipe, and the upper par of steam jacket is connected with steam outlet pipe. The steam inlet pipe is provided with valve, and the steam jacket and fixed bed reactor upper and lower flanges are covered by insulating layer.    DESCRIPTION OF DRAWING(S) - The figure shows a structure of a hydrogen-rich gas carbon monoxide (CO) deep removing device.    Air distributor (3)    Node thermoelectric couple (5)    Reactor barrel (10)    Vapor jacket (11)    Insulating layer (12)    Catalyst (14)    Upper flange (17)    Lower flange (18)    Fixed bed reactor (22)