System for cleaning pressurized containers
US6532684B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2001 |
| Grant date | Mar 18, 2003 |
| Priority date | — |
| Expiry date | Jul 9, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2270/0178
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a system for cleaning a pressurized container having at least one chemical contained therein. More specifically, the container may store a quantity of a chemical that is reactive with water and forms dangerous reaction products, such as, for example, acids. The pressurized container may be any type of container able to store chemicals under pressure. Preferably, however, the container may be a rail tank car. The system includes the container that may have a plurality of valves for adding or removing gaseous or liquid material to or from the container. The container may be connected with a nitrogen tank or a fan for blowing air that may be heated via a heater. A vacuum pump is utilized for removing the contents of the container. The container may further be connected to a reaction tank for neutralizing the chemical that is be removed from the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.