Plant and process for producing hydrogen with improved operation of a low temperature CO2 removal unit
US12330939B2 · kind B2 · utility
0Cited by
0References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2024 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Dec 11, 2044 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2203/148
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A plant and process for producing a hydrogen rich gas are provided, said process including the steps of: steam reforming a hydrocarbon feed into a synthesis gas; shifting the synthesis gas and conducting the shifted gas to a hydrogen purification unit, subjecting CO2-rich off-gas from the hydrogen purification unit to a carbon dioxide removal in a low temperature CO2-removal section and recycling CO2-depleted off-gas rich in hydrogen to the process. A drying unit upstream the CO2-removal section is provided, under the addition of regeneration gas produced in the plant and process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.