Economic factors affecting coal preparation: plant design worldwide and case studies illustrating economic impact

P.J. Bethell,     Arch Coal Inc., USA


The economic drivers behind the differences in design of plants treating coal destined for thermal and metallurgical coal markets worldwide are considered. Differences between plant designs in Australia, South Africa and the United States for both coal types will be discussed. Environmental constraints on plant design will be reviewed, in particular the means of dealing with ‘dry rejects disposal’ and water scarcity. Dealing with the ever-deteriorating quality of plant feed material, with the inevitable increase in near density material, will also be considered.

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