Systems and processes for producing hydrogen from sour gases
US10829371B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2019 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Oct 4, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/36
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present application discloses systems and methods for producing hydrogen from sour gas feeds. The systems and methods include systems and methods for steam reforming sour gas to produce hydrogen and calcium looping systems and methods for producing hydrogen from sour gas. In the present systems and methods, a calcination reactor decomposes calcium carbonate to form a calcium oxide and carbon dioxide. In a fuel reactor, sour gas is reacted with the calcium oxide to product syngas and calcium sulfide. An air reactor oxidizes the calcium sulfide to form an oxygen lean air stream and calcium sulfate. A water gas shift reaction stage converts the syngas into a shifted syngas. A separation stage purifies the shifted synthesis gas stream to form a hydrogen product stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.