Pressure swing adsorption processes and systems for recovery of hydrogen and C2+ hydrocarbons
US9630138B2 · kind B2 · utility
3Cited by
12References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2015 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Jun 24, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention involves a process for treating a gas stream from a hydroprocessor that contains hydrogen, methane and C2+ hydrocarbons. In embodiments of the invention, the gas stream is sent through at least two pressure swing adsorption units to produce a high quality hydrogen stream, a fuel gas stream containing most of the methane and a tail gas stream that is sent to a steam cracker. Lean gas from a gas plant and other refinery off gases may also be processed together with the gas stream from the hydroprocessor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.