Reactor for producing a product gas from a fuel
AssigneeStichting Energieonderzoek Centrum Nederland
InventorsBerend Joost Vreugdenhil, Abraham van der Drift
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Abstract
Method and reactor for producing a product gas from a fuel. The fuel is input into a pyrolysis chamber (6) and a pyrolysis process is executed for obtaining a product gas. Parts of the fuel exiting from the pyrolysis chamber (6) are recirculated to a combustion chamber (20, 23). In the combustion chamber (20, 23) a gasification process is executed in a fluidized bed (20) using a primary process fluid, followed by a combustion process in an area (23) above the fluidized bed (20) using a secondary process fluid.
Claims16
Method for producing a product gas from a fuel, comprising
- inputting the fuel into a pyrolysis chamber and executing a pyrolysis process for obtaining a product gas,
- recirculating parts of the fuel exiting from the pyrolysis chamber to a combustion chamber, and
- in the combustion chamber executing a gasification process in a fluidized bed using a primary process fluid, followed by a combustion process in an area above the fluidized bed using a secondary process fluid, wherein the gasification process is operated with an equivalence ratio ER between 0.9 and 0.99, the equivalence ratio ER being defined as the ratio of the amount of oxygen supplied divided by the amount of oxygen needed for complete combustion of the fuel.
(canceled)
Reactor for producing a product gas from a fuel, comprising
- a pyrolysis chamber connected to a fuel input, a first process fluid input, and a product gas output;
- a combustion chamber connected to a flue output;
- a feedback channel connecting the pyrolysis chamber and the combustion chamber;
- wherein the combustion chamber comprises a gasification zone accommodating a fluidized bed, and a combustion zone above the fluidized bed,
- wherein the reactor further comprises a primary process fluid input in communication with the gasification zone, and a secondary process fluid input in communication with the combustion zone.
Dependencies are inferred from the claim text.