Method and device for biogenic waste treatment
US8535526B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2007 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Feb 21, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present discloses a method and a device for biogenic waste, or bio-waste treatment, and said method is as follows: Firstly, the biogenic waste is evenly mixed with water vapor, or steam, heating and pressurizing so that the temperature reaches 130-190° C. and the pressure reaches 1.5-1.9 MPa after mixture, and this state is maintained for 1-25 minutes; Then, the pressure of the mixture of said biogenic waste and water vapor is reduced to normal pressure, such as atmospheric pressure so as to conduct low-molecularization, such as decreasing or reduction of molecular weight of the biogenic waste to obtain a low-molecularized mixture, such as a low molecular weight mixture; finally, the low-molecularized mixture, such as low-molecular weight mixture is separated so as to obtain the final products. Said device includes reaction vessel, stirring device, vapor input device, pressure-reducing regulator and separation device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.