| 摘要 |
The invention relates to a method for producing shell catalysts, comprising the following measures: a) providing a composition, containing a liquid and a catalytically active material and/or a precursor thereof in a reservoir, b) providing a carrier material in a container that can be rotated about a longitudinal axis, c) transporting the composition from the reservoir to a spray nozzle through a first line, d) transporting a propellant fluid to the spray nozzle through a second line, e) atomising the composition and the propellant fluid in the nozzle in order to produce an aerosol, which flows into the container and impregnates the carrier material located therein, f) heating the container (1) so that the liquid contained in the aerosol evaporates from the carrier material and the carrier material loaded with the catalytically active material and/or a precursor thereof is dried, and g) conducting or suctioning the evaporated liquid from the container. The invention further relates to a device for loading carrier material with a catalytically active material and/or a precursor thereof. Said device contains the following elements: A) a reservoir for a composition, containing a liquid and a catalytically active material and/or a precursor thereof, B) a container for a carrier material, which container can be rotated about a longitudinal axis, C) a spray nozzle, which opens into the rotatable container, D) a first line, which is arranged between the reservoir and the spray nozzle and which is used to transport the composition from the reservoir to the spray nozzle, and E) a second line, which is used to transport a propellant fluid to the spray nozzle. The method and the device allow an active component or active components to be applied to the carrier material gently and in a controlled manner. |
