High propane recovery process and configurations
US6837070B2 · kind B2 · utility
25Cited by
5References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 27, 2001 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Jul 4, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gas processing plant has a de-ethanizer (106) and a refluxed absorber (103), wherein the absorber (103) operates at higher pressure than the de-ethanizer (106), and wherein at least a portion of the absorber bottoms product (7) is expanded to provide cooling for the absorber reflux stream and/or the distillation column feed stream. Especially contemplated gas processing plants include propane and ethane recovery plants, and where the gas processing plant is an ethane recovery plant, it is contemplated that the ethane product comprises no more than 500 ppm carbon dioxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.