The Coolside desulfurization process is a dry sorbent injection technology developed for retrofit SO2 control in coal-fired utility power stations. The process is low in capital and space requirements since, in its ideal configuration, the existing ductwork and particulate collector are used as the S02-sorbent reaction spaces. It has been developed through laboratory and 1 MW-scale field tests using hydrated lime as the primary process sorbent by Consolidation Coal Company (Consol). The field work showed promising results with observed SO2 removal ranging u p to 80%. In order to optimize the process performance through improved understanding of the process fundamentals, Consol constructed and is operating a 0.15 MW pilot test unit. This paper describes the results of a process variable test program, afirst series of tests made in the pilot unit, and the unit operability observed during the test work.

This paper describes a dry sorbent injection SO,

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