Chemical looping combustion process with multiple fuel reaction zones and gravity feed of oxidized particles
US9765961B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2015 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Apr 29, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/34
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An improved chemical looping combustion (CLC) process and system includes a hopper containing oxygen carrier particles, e.g., metal oxides, that are gravity fed at a controlled rate of flow from the hopper into (a) a generally vertical downflow reactor where they are mixed with all of the hydrocarbon fuel feed to the system and (b) into one or more standpipes that are in communication with a plurality of staged fluidized reactor beds, the amount of the oxygen carrier particles introduced into the system being stoichiometrically predetermined to produce a syngas mixture of H2 and CO2; or to complete combustion of the fuel to CO2 and water vapor, thereby permitting capture of a majority of the CO2 produced in an essentially pure form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.