Process for producing clean coal using chemical pre-treatment and high shear reactor
US11591534B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Dec 3, 2019 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Dec 3, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L2290/545
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of processing raw coal using activation agents (e.g., solvents and extractants) in a high shear reactor, which creates high shearing forces to break apart the coal and selectively extract and remove contaminants such as ash, sulfur, and other heavy metal impurities resulting in clean, high caloric-value coal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.