Method of reducing the volume of solid radioactive waste
US4555361A · kind A · utility
10Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 1983 |
| Grant date | Nov 26, 1985 |
| Priority date | — |
| Expiry date | May 17, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21F9/32
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Combustible, solid radioactive waste, such as paper, plastics, rubber, cloth and wood, are reduced in volume to an ash residue using pyrohydrolysis, a method which combines pyrolysis of the waste in a vessel at temperatures in the range of 500.degree. to 700.degree. C. and gasification of residual carbon with superheated steam. Pressures of 1.0 to 3.5 MPa are used with steam flows in the range 4 to 50 grams/second/cubic meter so that carbon containing components of the waste are removed as gaseous decomposition products in the form of carbon monoxide and hydrogen leaving an ash residue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.