Abstract: The invention concerns in particular a method for purifying an input mixture comprising carbon dioxide (CO<SUB>2</SUB>) and carbon monoxide (CO), to eliminate the carbon monoxide contained in said mixture, which consists in contacting, at a temperature higher than room temperature, the input mixture with a purifying material comprising at least one metal oxide, so as to bring about the reduction of the purifying material by the input mixture, leading to oxidization of at least part of the CO of the input mixture into CO<SUB>2</SUB>. The invention also concerns a gaseous chilling method and installation integrating such a purifying operation.

Abstract: The invention concerns in particular a method for purifying an input mixture comprising carbon dioxide (CO<SUB>2</SUB>) and carbon monoxide (CO), to eliminate the carbon monoxide contained in said mixture, which consists in contacting, at a temperature higher than room temperature, the input mixture with a purifying material comprising at least one metal oxide, so as to bring about the reduction of the purifying material by the input mixture, leading to oxidization of at least part of the CO of the input mixture into CO<SUB>2</SUB>. The invention also concerns a gaseous chilling method and installation integrating such a purifying operation.

Abstract: This device includes a drive device (1) arranged above the reactor, provided with a vertical output shaft (2) equipped at its end with an axial-flow mobile assembly such as a propeller (4) immersed in the reactor; the output shaft of the drive device also carries an auto-suction turbine (5) immersed in the reactor and drivable by the output shaft (2), and the latter is enveloped coaxially by a cylinder (6) linked at its upper end to the drive device and whose lower end (6a) opens out into the turbine; in the upper end of the cylinder is drilled an aperture (14) for injecting a gas into an annular gap (15) delimited by the shaft and the cylinder. This device makes it possible to transfer a gas into a liquid efficiently and to ensure agitation whereby particles may be placed in suspension and held there. Application to the biological treatment of industrial effluents.