Abstract

A number of metallurgical processes involve roasting of metal sulfides with oxygen or reduction of metal sulfides with hydrogen. In each case sulfur-bearing gases are emitted. Lime can be used to capture these sulfur-bearing gases. A model of this reaction occurring in a pellet made up of grains of metal sulfide and lime is presented. Specifically, a pellet made up of a mixture of metal sulfide and lime surrounded by a lime layer is considered. The computational investigation shows the distribution of lime necessary to achieve the maximum fixation of sulfur-bearing gases in the shortest time.

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