Process and installation for separation of a gas mixture containing methane by distillation
US6578379B2 · kind B2 · utility
48Cited by
10References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2001 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Jan 10, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2280/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process and apparatus for separation of a gas mixture. A process and an installation for cryogenic separation of the constituents of a natural gas under pressure in a first phase separator in which the constituents of each phase are separated in a distillation column. Part of the gaseous fraction from the top of the column is recycled into the highest stage of the column. The process also includes branching of part of a first top fraction from the first phase separator. The process also includes separation of a first bottom fraction from the first separator, in a second separator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.