Separation of ethane and higher hydrocarbons from natural gas
US4582517A · kind A · utility
3Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 1984 |
| Grant date | Apr 15, 1986 |
| Priority date | — |
| Expiry date | May 23, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2270/88
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Ethane and higher hydrocarbons are separated by rectification from natural gas under elevated pressure. To obtain higher ethane yields, even for gases poor in ethane, an open mixture cycle with multistage fractional condensation is employed for the production of cold. One part of the thus-obtained condensates are introduced into the rectifying column to obtain the C.sub.2+ hydrocarbons and the other part is recirculated to provide the required cold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.