Combustion process
AssigneeITEA S.p.A.
InventorsMassimo Malavasi, Grazia Di Salvia, Edoardo Rossetti
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Abstract
A combustion process wherein a fuel, a comburent and a component B), sulphur or sulphur containing compounds, are fed to the combuster in an amount to have a molar ratio B′/AI≥0.5, wherein: B′ is the sum by moles between the amount of sulphur present in component B)+the amount of sulphur (component BII)) contained in the fuel, AI is the sum by moles between the amount of alkaline and/or alkaline-earth metals (component AII)) contained in the fuel+the amount of the alkaline and/or alkaline earth metals (component A)) in the form of salts and/or oxides contained in component B), being the combustor isothermal and flameless.
Claims13
A combustion process for reducing basic ashes in combustion fumes, comprising feeding into a combustor a fuel, a comburent and a component B), wherein combustion fumes comprising SO2 are output from the combustor, wherein component B) is selected from sulfur or sulfur containing compounds, and component B) is added in an amount to have a molar ratio B′/AI≥0.5, wherein:
- B′ is the sum by moles between the amount of sulfur present in component B)+the amount of sulfur contained in the fuel,
- AI is the sum by moles between the amount of alkaline and/or alkaline-earth metals contained in the fuel+the amount of the alkaline and/or alkaline-earth metals contained in component B),
- being
- the combustor is isothermal and flameless,
- the comburent being in molar excess with respect to the stoichiometric amount required for the combustion reaction with the fuel, and
- wherein the partial pressure of SO2 ranges from 40 to 300 Pa.
Dependencies are inferred from the claim text.