Sulfation of Calcined Raw Meal in the Kiln Inlet Housing for the Cement Industry

Abstract:

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The sulfation behavior of calcined raw meal was investigated in a laboratory fix-bed reactor under conditions typically for SO2 capture in the kiln inlet housing used in cement production. The initial period is characterized with a fast-increasing conversion, while the second period shows a slow-increasing conversion. A desirable temperature exists for sulfation of calcined raw meal. A smaller particle size favors the sulfation reaction. The initial conversion rate is significantly promoted by a higher SO2 concentration. The SEM examinations show that the sulfation process involves nucleation and growth of CaSO4 grains- the sulfation product. Increasing the temperature and extending the time result in fewer but larger CaSO4 grains in the product layer.

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Periodical:

Edited by:

Deliang Chen

Pages:

98-101

DOI:

10.4028/www.scientific.net/AMR.266.98

Citation:

X. Y. Li et al., "Sulfation of Calcined Raw Meal in the Kiln Inlet Housing for the Cement Industry", Advanced Materials Research, Vol. 266, pp. 98-101, 2011

Online since:

June 2011

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Price:

$35.00

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