Ash sintering gasifier
US10782021B2 · kind B2 · utility
Inventors
Key dates
| Filing date | May 4, 2017 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Nov 6, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method is provided for thermally converting non-radioactive combustible wastes to a substantially non-hazardous, non-leachable, sintered particulate carbon-less ash by-product in a kiln having a plurality of reaction zones. The kiln including first and second ends and a body provided between the first and second ends that defines a cavity having a refractory lining that provides resistance to heat conduction. A processor and flow rate controllers are provided that control a flow rate through the body of waste that enters at the first end of the kiln and the flow rate of oxidant gas that enters at the second end of the kiln, the second end being opposite to the first end. The body may be positioned substantially horizontal and may include a length-to-diameter ratio and a resistance to heat conduction that provides a temperature gradient within the cavity to forms separate reaction zones during operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.