A Method for Coating Double-Layered Particles of Metal-Metal Oxide and Depositing Active Catalyst Particles onto Metal Substrates for Preparing Metal Monolith Catalyst Modules

摘要

In order to facilitate the adhesion of the catalyst particles in the manufacture monolithic catalyst module that is used as the low-pressure primary reactor using the metal structure, the porous metal to the surface of metal structures - metal oxide layer ipjacheungreul method for coating, and then, the porous metal-to-metal It relates to a layered oxide particle layer on the method of attaching the active catalyst component and the catalyst attached to the low pressure difference appointed catalyzed monolith (monolith) module made of a metal structure having.; The porous metal-layered metal oxide particle layer coating method comprises: (1) washing and drying the metal structure with an acid or alkali; (2) forming a metal layer to coat the metal particles on a surface of the metal structure; (3) the step of sintering a portion of the metal particles by heating at a temperature of 600~1500 ℃ under vacuum or an inert atmosphere; And (4) by a heat treatment the metal particles coated metal structure are then fired at 400~1200 ℃ produce a metal oxide film on the metal surface layer of metal particles - forming a porous coating layer as a layer of the metal oxide particles; comprises a becomes, thereafter, the catalyst carrier metal for - Wash the metal oxides the metal structure of a layered particles supported directly on the solution of the active catalyst precursor was dissolved, or pre-production activity in a porous carrier particle layer catalyst particles by coating the particles It is attached, which is used for producing a low-pressure primary catalytic reaction once type monolithic module. According to the process of the present invention the catalyst particles are firmly attached to maintain a high conversion rate in the actual process to strong mechanical or thermal shock without loss of active particles and may be used for long periods of time.; Forming a coating layer on the carrier particles a metal structure according to the present invention and attached thereto by the catalyst particles is greatly improved adhesion stability and shock resistance of the catalyst particles. Catalytic module having the particles adhered to the method of the present invention to strong mechanical or thermal shock, and maintain a high conversion rate in the actual process, without loss of active catalyst particles, made possible long-term use.