Method for washing a tank and for recovering and treating residual tank liquid
US5421903A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1993 |
| Grant date | Jun 6, 1995 |
| Priority date | — |
| Expiry date | Sep 24, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B9/0933
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system for washing a tank and recovering and treating residual tank liquid comprises a first system unit equipped with a suction device for sucking and discharging residual tank liquid, a second system unit equipped with an oil-water separator for separating oil from the discharged residual liquid, a device for treating the separated oil and a pump for supplying a washing liquid into the tank, a third system unit equipped with an inert gas generator, and first, second and third conveyance vehicle for conveying the first, second and third system units to the tank to be treated. The invention also provides a method of operating the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.