Reduced-emission gasification and oxidation of hydrocarbon materials for liquid fuel production
US8038746B2 · kind B2 · utility
Inventor
Key dates
| Filing date | May 5, 2008 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Dec 5, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10J2300/1687
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A system and process are disclosed for the controlled combustion of a wide variety of hydrocarbon feedstocks to produce thermal energy, liquid fuels, and other valuable products with little or no emissions. The hydrocarbon feeds, such as coal and biomass, are first gasified and then oxidized in a two-chamber system/process using pure oxygen rather than ambient air. A portion of the intermediate gases generated in the system/process are sent to a Fischer-Tropsch synthesis process for conversion into diesel fuel and other desired liquid hydrocarbons. The remaining intermediate gases are circulated and recycled through each of the gasification/oxidation chambers in order to maximize energy production. The energy produced through the system/process is used to generate steam and produce power through conventional steam turbine technology. In addition to the release of heat energy, the hydrocarbon fuels are oxidized to the pure product compounds of water and carbon dioxide, which are subsequently purified and marketed. The system/process minimizes environmental emissions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.