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Catalytic Calcination of Calcium Carbonate

The calcination of calcium carbonate in a cement or a lime kiln uses approximately two to four times the theoretical quantity of energy predicted from thermodynamic calculation depending upon the type of the kiln used (1.4 x 10^6 Btu/ton theoretical to 6 x 10^6 Btu/ton actual). The objective of this research was to attempt to reduce the energy required for the calcination by 1. decreasing the calcination temperature of calcium carbonate, and/or 2. increasing the rate of calcination at a specific temperature. Assuming a catalytic enhancement of 20 percent in the industrial applications, an energy savings of 300 million dollars annually in the United States could be reached in the cement and lime industries. Three classes of compounds to date have shown a positive catalytic effect on the calcination of calcium carbonate. These include alkali halides, phospho- and silico-molybdate complexes, and the fused carbonates system.

Identiferoai:union.ndltd.org:unt.edu/info:ark/67531/metadc330965
Date08 1900
CreatorsSafa, Ali Ibrahim, 1953-
ContributorsDaugherty, Kenneth E., Theriot, L. J., Tarter, James G., Norton, S. J., Desiderato, Robert
PublisherNorth Texas State University
Source SetsUniversity of North Texas
LanguageEnglish
Detected LanguageEnglish
TypeThesis or Dissertation
Formatix, 161 leaves : ill., Text
RightsPublic, Safa, Ali Ibrahim, 1953-, Copyright, Copyright is held by the author, unless otherwise noted. All rights reserved.

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