Method for pyrolysis treatment of oily sludge and environment-friendly renovation of the residue thereof with humic acid substance
US10487265B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2019 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Mar 5, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/129
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Providing a method for pyrolysis treatment of oily sludge and environment-friendly renovation of the residue thereof with humic acid substance. The method relates to inside-mixing solid heat carrier with oily sludge to improve the liquid yield, and completely removing the petroleum hydrocarbons from pyrolyzing residue by calcinating it in a fluidized bed, and using the fractionated large and medium particles as the circulating heat carrier, and discharging the fine particles, and performing environment-friendly renovation with the biological humic acid substance to achieve combinations of the harmless technical measures, thereby achieve harmlessness, reduced quantity and resourceful treatment of the oily sludge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.