Process for liquefying a gas, notably a natural gas or air, comprising a medium pressure drain and application
US6105391A · kind A · utility
14Cited by
8References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1998 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Dec 21, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/91
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is a process for liquefying a compound A from a mixture comprising at least compound A and at least one compound B. The mixture is available at a pressure P1 with separation of the at least one compounds B and/or of compound A being performed by distillation at a pressure substantially close to pressure P2 in order to produce at least a stream mainly comprising the compound A and at least a stream F4 comprising most of the at least one compound B. The invention has an application of methane and/or helium extraction during liquefaction of a natural gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.