C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 7/36 (2006.01)
Patent
CA 2668937
The invention relates to a process for manufacturing clinker from a raw mix, implementing the following: preheating of the raw mix by combustion flue gases; precalcination of the raw mix; and calcination of the precalcined raw mix in a rotary kiln, in which process the precalcination and the calcination in the rotary kiln produce combustion flue gases that contain CO2, in which the combustion flue gases created by the precalcination undergo a CO2-removal treatment without said flue gases mixing with the combustion flue gases created by the calcination in the rotary kiln.
L'invention concerne un procédé de fabrication de clinker à partir d'un cru mettant en oeuvre : -le préchauffage du cru par des fumées de combustion, -la précalcination du cru, -la calcination du cru précalciné dans un four rotatif, dans lequel la précalcination et la calcination dans le four rotatif produisent des fumées de combustion comprenant du CO2, dans lequel on fait subir un traitement d'élimination de CO2 aux fumées de combustion créées par la précalcination sans mélanger lesdites fumées aux fumées de combustion créées par la calcination dans le four rotatif.
de Smedt Guillaume
Penfornis Erwin
L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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