NGL recovery from natural gas using a mixed refrigerant
US10139157B2 · kind B2 · utility
2Cited by
122References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 22, 2012 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Sep 12, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2270/66
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An NGL recovery facility for separating ethane and heavier (C2+) components from a hydrocarbon-containing feed gas stream that utilizes a single, closed-loop mixed refrigerant cycle. The vapor and liquid portions of the feed gas stream are isenthalpically flashed and the resulting expanded streams are introduced into the NGL recovery column. Optionally, a second vapor stream can be flashed and then introduced into the recovery column at the same or lower separation stage than the flashed liquid stream. As a result, the NGL recovery facility can optimize C2+ recovery with compression costs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.