Method of regenerating honeycomb type SCR catalyst by air lift loop reactor
US7592283B2 · kind B2 · utility
4Cited by
8References
3Claims
0Family size
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Key dates
| Filing date | Oct 28, 2005 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | Feb 2, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/517
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Provided is a method of regenerating a honeycomb type SCR catalyst which is used in selective catalytic reduction (SCR), comprising treating a waste honeycomb type SCR catalyst used in an industrial boiler with a mixed solution containing 0.1 M to 1.0 M H2SO4, 0.005 M to 0.1 M NH4VO3 and 0.005 M to 0.1 M 5(NH4)2O.12WO3.5H2O in an air lift loop reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.