Porous catalytic filtering metal material and its prepn

Abstract

The present invention belongs to the field of powder metallurgical product, and is gas catalyzing and filtering material and its preparation process. The porous catalyzing and filtering metal material consists of porous metal or alloy matrix, middle transition layer and active component. Its preparation process includes preparing porous metal or alloy matrix, preparing middle transition layer and supporting active component. The porous catalyzing and filtering metal material with porous metal as carrier and transition metal oxide as active component has excellent features of low density, great specific surface area, high porosity, high heat conductivity, etc. as well as homogeneous distribution of active component, fast supporting, high catalytic activity and high heat stability. It has simple preparation process, low cost and easy industrial application, and is suitable for high temperature gas and fume purification.

Description

technical field

[0001] The invention belongs to the field of powder metallurgy products and catalytic materials, and relates to a catalytic filter material and a preparation method thereof. Background technique

[0002] The catalytic filter material is formed by attaching catalytic active components to the porous filter material or element. It fully embodies the structural characteristics and catalytic characteristics of the porous material. Harmful components such as NO X , VOC (Volatile Organic Compounds), hydrocarbons, coke, etc. are catalytically converted to realize the integration of filtration and purification, which can simplify the process, greatly reduce equipment investment, improve energy utilization and save space.

[0003] CN1476929 discloses a kind of 2 o 6 A denitrification catalyst as a carrier and a preparation method thereof. The method is CeTi 2 o 6 The compound is used as the catalyst carrier, and then the CeTi 2 o 6 The denitrification catalyst ...