Method and apparatus for drying organic material
US7960165B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 30, 2006 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Oct 23, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Organic waste having a moisture content of about 65% is dried to a level of dryness by applying heat generated by microbial action on the waste organic material to dry that material to usable levels of about 20% moisture. Method of the present invention is more efficient and economical for the drying of waste materials to combustible fuel than conventional drying methods and apparatus. Preblended portions of the organic material are deposited sequentially into a fermentation zone of a chamber and hot exhaust gases generated by the fermentation process are passed through an air-to-air heat exchanger along with cooler ambient intake air which is in its turn heated and turned back on the waste material in the second drying stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.