Catalyst Gauze Layers

Catalyst gauze layers are precision-engineered components consisting of multiple woven wire mesh sheets, typically made from platinum-rhodium alloys, arranged in a pack configuration. These layers serve as the active catalytic surface in high-temperature chemical reactors, facilitating gas-phase reactions through heterogeneous catalysis. They are designed to maximize surface area, ensure uniform gas flow distribution, and withstand extreme thermal and chemical conditions while maintaining catalytic activity over extended operational periods.

Catalyst gauze layers operate on the principle of heterogeneous catalysis, where reactant gases (such as ammonia and air) diffuse through the porous mesh structure and adsorb onto the active catalytic sites on the wire surfaces. This adsorption lowers the activation energy of the target reaction (e.g., ammonia oxidation to nitric oxide), enabling efficient conversion at elevated temperatures (typically 800-950°C). The woven mesh design provides high geometric surface area, promotes turbulent flow to minimize boundary layers, and allows heat dissipation while maintaining structural integrity under thermal cycling.