Method and apparatus for preparing calcium carbonate for scrubbi

Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Waste gas purifier

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422170, 422173, 422177, 422172, B01D 5000

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active

058208313

ABSTRACT:
Limestone is dried for grinding to very fine particles e.g., about 8.mu. or less with more than 99% of the particle by weight less than 44.mu., by utilizing waste heat from the flue gas from a large combustor. The finely-divided calcium carbonate is then introduced dry into a scrubbing tower where it mixes with and renews the slurry employed therein for scrubbing SO.sub.x -laden effluent.

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Jones, McIntuch, Lunden, Rhudy, Bowen, Mist Elimination System Design & Specification for EGD Systems, SO.sub.2 Control Symposium, Boston, MA, Aug. 26, 1993.
Rader and Bakke, Incorporating Full-Scale Experience into Advanced Limestone Wet FGD Designs, IGCI Forum '91, Washington, D.C., Sep. 12, 1991.
Rosenberg and Koch, Report--Battelle's Stack Gas Emissions Control Coordination Center Group, Battelle Memorial Institute, Jul. 10, 1989.

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