Waste disposal
US4520741A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1984 |
| Grant date | Jun 4, 1985 |
| Priority date | — |
| Expiry date | Apr 13, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23J15/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Burning a waste fuel blend at very high temperatures (typically greater than 4000 deg. F.) for a very short period of time (typically a matter of milliseconds) in a primary combustion zone to break the complex hazardous/toxic hydrocarbons into less complex chemicals (such as CO, CO.sub.2, H.sub.2, OH, HCl, and Cl.sub.2), passing the products of the primary zone into a secondary zone in which the products are maintained for a longer time (typically about 2 secs.) in turbulent conditions with excess air at lower combustion temperatures (typically 2000 to 2600 deg. F.) to reduce the primary zone products to a mixture of H.sub.2 O, CO.sub.2 and acids such as HCl, and quenching the products of the secondary zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.