Method for the continuous production of a gaseous hydrogen stream
US11491437B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2018 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Apr 25, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the production of a hydrogen gas stream having a CO content of less than 1 ppm having a production cycle comprising two phases: phase 1 includes a) purifying a synthesis gas in a PSA unit, b) recovering a hydrogen gas stream comprising a CO content of greater than 1 ppm, c) purifying the gas stream by adsorption in a TSA unit, and recovery a hydrogen gas stream exhibiting a CO content of less than 1 ppm, and phase 2 includes e) purifying the synthesis gas in a PSA unit, f) recovering a hydrogen gas stream having a CO content of less than 1 ppm, where throughout steps e) and f), the TSA unit is bypassed by the hydrogen gas stream and is regenerated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.