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US 12,473,689 B2Granted
Method for the gasification of a black liquor
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorGeert Haarlemmer
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Abstract
A method for transforming a black liquor, comprising the following steps: a) supplying a black liquor, b) gasifying the black liquor by means of supercritical water gasification in the presence of a hydrogenated carbon-free fuel, by means of which reaction products are formed, c) cooling the reaction products, by means of which a gaseous mixture is obtained which comprises at least methane and a green liquor comprising at least sulphur in the form of NaHS, Na2S and H2S.
Claims15
A method for transforming a black liquor comprising the following steps:
- a) supplying a black liquor,
- b) carrying out a supercritical water gasification of the black liquor, whereby reaction products are formed,
- c) cooling the reaction products, whereby are obtained
- a gaseous mixture is obtained comprising at least methane, and
- a green liquor comprising at least sulphur in the form of NaHS, Na2S and H2S,
- wherein the supercritical water gasification is carried out by addition in step b) of a carbon-free hydrogenated fuel.
3 more elements
Dependencies are inferred from the claim text.