Purification of salt-charged waste water by wet oxidation under super-critical conditions
US5437798A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1994 |
| Grant date | Aug 1, 1995 |
| Priority date | — |
| Expiry date | Feb 22, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/54
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
With the process according to the invention for the purification of salt-charged waste water by wet oxidation of organic constituents under supercritical conditions, the reaction is performed in the form of a flame (5). In this case the supercritical zone is surrounded with a subcritical by-pass flow (4) formed from cooling water. At one end of the reactor (1) constructed as a cylindrical pressure vessel are provided at least one burner nozzle (2) and at least one annular inlet point (48), surrounding the burner nozzle, for the cooling water; at the other end is disposed at least one common outlet point (160) for cooling water, reaction products and in particular precipitated salts. Thanks to the by-pass flow there are no obstructions caused by salts; and corrosion problems are substantially reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.