Systems and methods for oxidation of synthesis gas tar
US9822318B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 24, 2015 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Apr 29, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/145
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method is provided for removing tar from a gas by contacting a first gas containing tar with a second gas containing oxygen for time period sufficient to effect oxidation of at least a portion of the tar in the first gas, thus producing an oxidized product gas that contains less tar than the first gas. The method can also include heating a fluidized particulate material in a combustor, introducing the heated fluidized particulate material from the combustor and a biomass feedstock into a gasifier, such that heat from the heated fluidized particulate material causes the gasification of at least a portion of the biomass feedstock to form a tar-containing product gas, the first gas may contain at least a portion of the tar-containing gas, and the tar-containing gas may be extracted from the gasifier prior to contacting the first gas with the second gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.