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D 8.1  Status Report on Calciner Technology Revision


This report summarizes the technical basis and state-of-the-art designs of the calciner technology used in the cement industry. The calcination reaction, which form the basis of considerations, and its requirements on the technology concerning temperature level etc. are described. In the course of development different calciner types have been developed and are applied with respect to the plant-specific requirements. The main groups are: extended duct, separate line and in-line calciners. As basis for the oxyfuel investigation typical operational values are listed. Previous theoretical investigations and some practical experience on the calcination behavior during oxyfuel mode and the expected impact on the operation are described.