Process for treating effluent gas
US4882020A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1988 |
| Grant date | Nov 21, 1989 |
| Priority date | — |
| Expiry date | May 27, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J19/081
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for treating an effluent gas which includes the steps of leading an effluent gas containing sulfur oxides (SO.sub.x) and/or nitrogen oxides (NO.sub.x) to a radiation irradiation zone, adding ammonia (NH.sub.3) to the effluent gas before, during or after the irradiation, collecting resulting ammonium sulfate and/or ammonium nitrate by means of a dust collector, and releasing the effluent gas into the atmosphere. The desulfurization and/or denitration rate is improved by using as the dust collector a bag filter alone or a combination of an electrostatic precipitator and a bag filter, and adjusting the effluent gas temperature at the outlet of the bag filter within the range of from a temperature at which the humidity of the effluent gas is saturated to 100.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.