SYMPOSIA PAPER Published: 01 January 1984
STP30278S

Drying and Agglomeration of Flue Gas Gypsum

Source

Flue gas gypsum is obtained as a moist finely divided powder from the desulfurization of combustion gases in power plants. From its upgrading by drying and agglomeration, a material is produced very similar in its properties to that of natural gypsum. The drying is carried out very successfully by using rapid driers. Agglomeration can be done by the process of briquetting, compaction, or pelletizing. Briquetting, the most reliable of the agglomeration processes, will be described in more detail. Flue gas gypsum briquets can be used by both the gypsum and the cement industry. In case of a surplus, these briquets can easily be stored in the open, especially during winter months. This puts the power plant operator in a position whereby he can produce by-product gypsum with a variety of application properties and at the same time contribute to the gypsum being reliably and economically utilized.

Author Information

Wirsching, F
Gebr. Knauf Westdeutsche Gipswerke, Zentrallaboratorium, Iphofen, Federal Republic of Germany
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Details
Developed by Committee: C11
Pages: 160–172
DOI: 10.1520/STP30278S
ISBN-EB: 978-0-8031-4918-2
ISBN-13: 978-0-8031-0219-4