Gas separation process
US6405561B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2001 |
| Grant date | Jun 18, 2002 |
| Priority date | — |
| Expiry date | Jun 6, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2270/60
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for separating a feed gas stream containing methane, C2 components, C3 components, and heavier components into a volatile gas stream containing a major portion of the methane and C2 components and a less volatile stream containing a major portion of the C3 and heavier components by adjusting the temperature and pressure of the feed gas stream and charging it to a separator/absorber where the gas stream is separated into a first gas stream containing a major portion of the methane and C2 components with a minor content of C3 and heavier components and a first liquid stream containing a major portion of the C3 and heavier components with a lesser concentration of C2 and lighter components with the first liquid stream being fractionated in a deethanizer into an overhead stream and a bottoms stream with the bottoms stream containing primarily C3 and heavier components with the overhead stream containing primarily C2 and lighter components being at least partially condensed and separated into a liquid reflux stream, a second liquid stream and a vaporous stream. The second liquid stream is passed to an upper portion of the separator/absorber for use therein to absorb C3 and hea…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.