Ammonia adsorption apparatus
US5897687A · kind A · utility
3Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1995 |
| Grant date | Apr 27, 1999 |
| Priority date | — |
| Expiry date | Oct 20, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/402
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is an ammonia adsorption apparatus for removing ammonia contained in a treated gas discharged from a denitrator for decomposing nitrogen oxides present in exhaust gas using ammonia as a reducing agent, comprising at least two adsorption towers into which ammonia-containing exhaust gas is introduced in a vertical direction for removing the ammonia by adsorption, wherein, during regeneration of each adsorption tower, hot gas used for desorption purposes flows from a top toward a bottom of the adsorption tower and cooling gas flows from the bottom toward the top of the adsorption tower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.