Method and apparatus for purifying process waste emissions
US4052266A · kind A · utility
Inventor
Key dates
| Filing date | May 11, 1973 |
| Grant date | Oct 4, 1977 |
| Priority date | — |
| Expiry date | May 11, 1993 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23G7/065
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The vapor emissions from process exhausts, containing one or more contaminants of the solid, liquid and gaseous types, are delivered to the inlet of a firebox which, in one embodiment, has a cylindrical side wall and a tangentially arranged oxidizing air-fuel burner. The hot gas outlet of the firebox is so arranged that the hot gases of combustion are retained within the firebox a sufficient length of time to insure substantially complete combustion of combustibles within the firebox. The portions of the firebox which are contacted by the gases of combustion are of a material or combination of materials having a surface capable of being heated to a temperature exceeding the ignition temperature of the air-fuel mixture of the burner and of combustible materials from the process, and an external mass capable of insulating said surface against external cooling below said ignition temperature. A tangentially arranged outlet through the cylindrical wall of the firebox serves to remove non-combustible solids centrifuged to said side wall by the high speed circulating gases of combustion. The purified hot gases may be recycled from the hot gas outlet to the process equipment, used for oth…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.