Separation at sub-ambient temperature of a gaseous mixture containing carbon dioxide and a lighter contaminant
US10317135B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2014 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Sep 29, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A device for separating a gas mixture containing at least 35 mol % carbon dioxide and also at least one gas lighter than carbon dioxide, comprising a first phase separator configured to receive a first partially condensed flow from an exchange line; a first phase separator configured to separate the gas phase from the liquid phase; a cooling means configured to receive the gas phase from the first phase separator and cool said gas phase to form a second partially condensed flow. The resulting liquid phase is then sent to a first valve and is expanded to a lower pressure that is at most 300 mbar lower in order to form a first expanded liquid, which is then mixed with a second liquid originating from the second phase separator in a mixing means that is located upstream of a third valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.