Process and plant for the thermal treatment of waste material
US6018090A · kind A · utility
7Cited by
9References
25Claims
0Family size
Inventor
Key dates
| Filing date | Sep 24, 1997 |
| Grant date | Jan 25, 2000 |
| Priority date | — |
| Expiry date | Sep 24, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/129
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for heat treating waste materials including pyrolysing the waste materials in a first heating zone to produce pyrolysis gas containing dust and impurities, removing at least 90% of the dust from the pyrolysis gas, and burning the pyrolysis gas to produce flue gas. The flue gas produced is either immediately denitrogenated non-catalytically or first cooled and then catalytically denitrogenated. Following denitrogenation the flue gas is filtered to purify the gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.