Noble metal-free nickel catalyst formulations for hydrogen generation
US7270798B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 18, 2003 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | May 7, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to methods of using noble metal-free nickel catalysts to generate a hydrogen-rich gas from gas mixtures containing carbon monoxide and water, such as water-containing syngas mixtures, where the nickel may exist in either a supported or a bulk state. The noble metal-free water gas shift catalyst of the invention comprises Ni in either a supported or a bulk state and at least one of Ge, Cd, In, Sn, Sb, Te, Pb, their oxides and mixtures thereof. The invention is also directed toward noble metal-free nickel catalysts that exhibit both high activity and selectivity to hydrogen generation and carbon monoxide oxidation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.