Method for preparing molecular sieve-multielement oxide composite integrally extruded denitration catalyst
US10596557B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2016 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Dec 27, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2523/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A preparation method for a molecular sieve-multiple oxide composite integral extrusion type denitration catalyst includes constructing an organic structure coating on the surface of a metal ion-exchanged molecular sieves and synchronously adding multiple oxide components, thus obtaining an ion-exchanged molecular sieve-multiple oxide composite denitration catalyst active component; and then mixing, kneading into paste, staling, carrying out integral extrusion forming, drying, and calcining, thus obtaining the integral extrusion type denitration catalyst. The molecular sieve-multiple oxide composite integral extraction type denitration catalyst has a denitration efficiency more than 80% at the temperature ranging from 250° C. to 420° C. in the presence of 10% steam and 500 ppm sulfuric dioxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.