C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 1/00 (2006.01) B01J 6/00 (2006.01) F27B 7/20 (2006.01) F27B 7/34 (2006.01) F27B 7/36 (2006.01) F27D 13/00 (2006.01)
Patent
CA 2312549
In this process: - the material is passed through a precalcination device (3) equipped with at least one fuel injector at the outlet of which a fuel-injection zone is formed, then - the at least partially calcined material is passed into the rotary kiln (4) which, at its downstream end, is equipped with a primary combustion unit (16). At least one oxygen-rich fluid with an oxygen concentration by volume higher than that of the products of combustion from the rotary kiln is injected near to the injection zone so that the oxygen-rich fluid can supply from 1% to 40%, and preferably from 1% to 10%, of the stoichiometric amount of oxygen needed for the combustion of the fuel injected by the injector. Application to the production of clinker.
Alves Dora Sophia
Borissoff Thierry
Dugue Jacques
Marin Ovidiu
Milosavljevic Ivan
L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Proced Es Geo
L'air Liquide - Societe Anonyme A. Directoire Et Conseil de Surv
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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