Pyrolysis process water utilization
US5547548A · kind A · utility
8Cited by
31References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 18, 1994 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Jul 18, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10B39/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for reducing the undesirable contaminants in process water produced in pyrolysis of low rank coal. The method uses the process water to quench and rehydrate a char produced by pyrolysis with the contaminants in the waster water being absorbed by the char.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.