ISSN: 0149-6123
Page Count: 5

The Potential Use of Catalysts in the Cement Industry
Safa, AI
Candidate in chemistry and professor of chemistry, North Texas State University, TX

Funnell, JE

Dziuk, JJ
Staff scientist and research scientist, Southwest Research Institute, TX

Daugherty, KE
Candidate in chemistry and professor of chemistry, North Texas State University, TX

Mallow, WA
Staff scientist and research scientist, Southwest Research Institute, TX

Abstract

The calcination of calcium carbonate in a cement or a lime kiln requires approximately two to four times the theoretical quantity of energy predicted from thermodynamic analysis depending upon the type of cement kiln used. The potential for using catalysts to reduce the total energy requirements was explored. It is, of course, impossible to reduce the theoretical energy requirement for the calcination process. Two possible ways considered to reduce this total requirement were (1) to either increase the rate of calcination at a specific temperature or (2) to decrease the temperature of calcination. Several classes of catalysts show promise of doubling the calcination rate (or decreasing the energy requirement by ½).

Keywords:
catalysts, calcium carbonates, limestone, fused salts, carbon dioxide, thermal analysis, energy, conservation, calcium oxides, cements, calcination, alkali halides, rate of calcination

Paper ID: CCA10246J
DOI: 10.1520/CCA10246J
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