Verfahren zur Hydrierung und Kalzinierung von CACO3 mit H2

Details

Veröffentlichungs-Nr.

EP4378887

Aktenzeichen

EP22383163

Anmeldetag

1. Dezember 2022

Veröffentlichung

30. Juli 2025

Erteilung

30. Juli 2025

Rechtsraum

EP

IPC

C01B3/16B01D53/62B01D53/96B01J23/72B01J23/745C01B3/18C01F11/06C01F11/18C10K3/02B01J8/08B01J8/18B01J8/24B01J8/38

Abstract

This invention discloses a hydrogenation method of CaCO<3> with H<2> to produce CaO and a syngas product gas containing H<2>, CO, CO<2> and H<2>O, preferably with a H<2>/CO mol ratio close to 2. The method operates by arranging a solids containing CaCO<3> and at least CaO (as reverse water gas shift catalyst) in a reactor, heating them to a temperature that depends on operating pressure and feeding H<2> to react with them and cause a cooling of the solids while producing a syngas and a solids mixture containing an increased fracstion of CaO. The method operates continuously by cyclically recarbonating the CaO with the CO<2> contained in a gas, or by feeding new CaCO<3> to the bed of solids and extracting an equimolar quantity of CaO.

Anmelder

Firma

Consejo Superior De Investigaciones Científicas

Land

🇪🇸 Spanien

Fachgebiete