CATALYST SUPPORTS

摘要

A catalyst device for use in the treatment of a fluid, e.g. car exhaust gases, by passing the fluid over a solid surface with which the fluid interacts. The device includes a container having gas inlet and gas outlet passageways and assembled therein a plurality of components each of which is small compared with the size of the container. Each of these components comprises a substrate in wire form fabricated into an open-work three dimensional configuration in which contact between adjacent parts of the wire-form substrate is avoided. A solid surface coating is provided on the substrate of material for interacting with the fluid.