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US 2021/0252597 A1Published application
Incineration apparatus and method
AssigneeDoosan Lentjes GmbH
InventorsOguzhan NARIN, Björn BROSCH, Andreas KARPINSKI
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Abstract
The invention relates to an Incineration apparatus, comprising a fluidized bed redox reactor having a reaction chamber with particulate matter and a fluidized bottom with at least one reducing agent inlet for a gas to fluidize the particulate matter.
Claims9
An incineration apparatus, comprising:
- a fluidized bed redox reactor having:
- a reaction chamber with particulate matter comprising particulate metal oxide and
- a fluidized bottom with at least one reducing agent inlet for a gas to fluidize the particulate matter,
- the incineration apparatus further comprising:
- a fluidized bed combustor having:
- a combustion chamber with particulate matter comprising particulate metal,
- a fluidized bottom with at least one oxidizer inlet for an oxygen containing gas to fluidize the particulate matter and
- an ignition device embodied to at least locally raise the temperature to cause an exothermic combustion reaction of the particulate metal with the oxygen containing gas,
- characterized in that
- the incineration apparatus further comprises an electrolysis unit for producing hydrogen gas and oxygen having a hydrogen outlet for the produced hydrogen gas and an oxygen outlet for the produced oxygen, wherein the oxygen outlet is connected to the oxidizer inlet of the fluidized bed combustor and the hydrogen outlet is connected to the reducing agent inlet of the fluidized bed redox reactor, so that the hydrogen gas containing gas fluidizes the particulate matter comprising particulate metal oxide,
- wherein in the resulting fluidized bed the particulate metal oxide react with the hydrogen gas to particulate metal and water.
8 more elements
A method for operating an incineration apparatus, comprising the following steps:
- Providing particulate metal oxide to a reaction chamber of a fluidized bed redox reactor,
- Providing a gas to a fluidized bottom of the fluidized bed redox reactor such that the particulate metal oxide is fluidized,
- Providing particulate metal to a combustion chamber of a fluidized bed combustor,
- Providing an oxygen containing gas to a fluidized bottom of the fluidized bed combustor such that particulate matter comprising the particulate metal is fluidized, and
- Raising at least locally the temperature to cause an exothermic combustion reaction of the particulate metal with the oxygen containing gas, characterized in that
- the method comprises the following steps:
- Operating an electrolysis unit to produce oxygen and hydrogen gas,
- Providing the produced hydrogen gas as hydrogen containing gas to the reaction chamber of the fluidized bed redox reactor, wherein the particulate metal oxide react with the hydrogen gas to particulate metal and water,
- Providing the produced oxygen as the oxygen containing gas to the combustion chamber of the fluidized bed combustor.
6 more elements
Dependencies are inferred from the claim text.