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US 6,875,411 B2Granted
Process for the production of hydrogen
AssigneeSnamprogetti S.p.A.
InventorsDomenico Sanfilippo, Alberto Paggini, Valerio Piccoli, Roberta Miglio, Stefano Rossini
Life of this patent
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Abstract
Process for the production of hydrogen consisting in subjecting a solid to oxidation and treating, in a different zone, the oxidized form thus produced with a reducing stream, preferably a hydrocarbon.
Claims21
A process for the production of hydrogen and carbon dioxide comprising:
- a) oxidizing a solid in a first reaction zone to produce hydrogen;
- b) passing the oxidized solid to a second reaction zone into which a reducing stream comprising hydrocarbon as reductant is fed and reacting the oxidized solid with the hydrocarbon to produce carbon dioxide;
- c) recovering the reduced solid and feeding it to the first reaction zone;
- d) wherein heat is supplied by use of a supplementary thermal support unit situated between the two reaction zones, the heat being supplied by using the heat which develops due to the further oxidation of the solid with air.
1 more element
Dependencies are inferred from the claim text.