Oxidizing additives for control of particulate emissions
US6797035B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2002 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Sep 16, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C3/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention discloses a process for removing undesired particles from a gas stream including the steps of contacting an additive containing nitrate and/or nitrite anions with the gas stream; collecting the undesired particles and additive on a collection surface to form an aggregate on the collection surface comprising the additive and undesired particles; and removing the agglomerate from the collection zone. The anions can be compounded with one or more of potassium, sodium, calcium, and aluminum. In a preferred composition, the anion(s) is/are compounded with potassium. The process may be applied to electrostatic precipitators to improve undesired particle collection efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.