Process for producing a displacement gas to unload pressurized liquefied gas from containers
US6257017A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1999 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Dec 16, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2235/60
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is disclosed for producing a displacement gas to be used in displacing a pressurized liquefied gas from one or more containers. A portion of the liquefied gas to be displaced is further pressurized and it is then separated into a first fraction and a second fraction. The first fraction is expanded by a suitable expansion means, and the expanded fraction is passed to a separation means to produce a liquid stream and a gas stream. The second fraction is heated to covert it to a vaporous product stream. A portion of the vaporous product stream is withdrawn, expanded, and passed to the separation means. A gas stream produced by the separation means is expanded, and it is then available for use as a displacement gas for displacing liquefied gas from one or more containers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.