Gas to hydrogen process with co-production of carbon
US11891706B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 29, 2021 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Mar 29, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B5/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The disclosure relates in its first aspect to a process of conversion of a gaseous stream comprising methane into hydrogen (51) and carbon (25), the process is remarkable in that it comprises a step (a) of providing a first gaseous stream (3, 7); a step (b) of bromination and synthesis in which the first gaseous stream (3, 7) is put in contact with a second stream (53) comprising bromine resulting in the formation of a third stream (15) comprising methyl bromides and hydrogen bromide, and of a fourth stream (25) comprising carbon including graphite and/or carbon black; a step (c) of separation performed on the third stream (15) to recover a hydrogen bromide-rich stream (41) which is then oxidized in a step (d) to produce a stream (51) comprising hydrogen. The second aspect relates to the installation for performing the process of the first aspect and the third aspect concerns the use of bromine in such process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.