Refrigerant recovery scheme
US5265427A · kind A · utility
4Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1992 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Jun 26, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2290/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for obtaining ethane and propane refrigerant from a lean feed gas is disclosed. Said process involves the addition of a small amount of propane to a stream of said lean feed gas, thus widening the phase envelope and increasing the ease of separation of the methane and nitrogen from heavier components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.