Calcium oxide obtained by Calcium Carbonate decomposition has a very large number of industrial uses both, as catalyst or CO 2 sorbent and, for example, as process material in the paper industry. Its properties depend largely on the microstructure developed during carbonate decompositions and successive sintering of the just formed CaO. Impurities and additives can have strong influence on both product microstructure and energy process consumption. This paper revisits the effect of sodium on limestone decarbonation. NaOH or Na 2CO 3 in particular, fastens the decarbonation reaction and lowers the energy consumption with positive impact on the operation control and the quality of the product.
The effect of alkaline cations on the operation of the kraft recovery and other kilns
LAGAZZO, ALBERTO;BOTTER, RODOLFO
2012-01-01
Abstract
Calcium oxide obtained by Calcium Carbonate decomposition has a very large number of industrial uses both, as catalyst or CO 2 sorbent and, for example, as process material in the paper industry. Its properties depend largely on the microstructure developed during carbonate decompositions and successive sintering of the just formed CaO. Impurities and additives can have strong influence on both product microstructure and energy process consumption. This paper revisits the effect of sodium on limestone decarbonation. NaOH or Na 2CO 3 in particular, fastens the decarbonation reaction and lowers the energy consumption with positive impact on the operation control and the quality of the product.
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