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US 2024/0166546 A1Published application
Process for thermoprocessing a charge
AssigneeL'Air Liquide, Societe Anonyme pour I'Etude et I'Exploitation des Procedes Georges Claude
InventorsLuc JARRY, Martin GRAEBNER, Jean CAUDAL
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Abstract
Process for thermoprocessing a non-gaseous charge in a furnace (13), whereby) carbon dioxide released by the charge during said thermoprocessing, a non-zero fraction (7) of the flue gas (6) which contains said released carbon dioxide being combined with hydrogen (3) and subjected to a rWGS reaction with said hydrogen (3), whereafter the reaction product (9) of the rWGS reaction is supplied to the furnace (13) as fuel.
Claims16
-15. (canceled)
A process for thermoprocessing a charge, comprising:
- introducing a non-gaseous charge to be thermoprocessed into a furnace,
- heating the furnace by means of combustion of fuel with oxidant, said fuel and oxidant being supplied to the furnace at regulated supply rates,
- generating an atmosphere in the furnace, said atmosphere comprising of a gaseous mixture comprising (a) combustion gas generated by the combustion of the fuel with the oxidant and (b) carbon dioxide released by the charge during thermoprocessing,
- withdrawing the thermoprocessed charge from the furnace and
- evacuating the gaseous mixture as flue gas from the furnace,
- wherein
- hydrogen is supplied to the process and a non-zero fraction of the flue gas containing at least 50% vol and at most 100% vol CO2 is combined with at least part of the supplied hydrogen and subjected to a rWGS reaction with said hydrogen in a rWGS reactor, wherein at least part of the CO2 in the fraction is converted into CO, and:
- the reaction product of the rWGS reaction is supplied to the furnace as part or all of the fuel to be combusted.
5 more elements
Dependencies are inferred from the claim text.