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dc.contributor.advisorKirkland, Brenda L.
dc.contributor.authorByrd, Kinsey M. (Kinsey Morgan)
dc.date2013
dc.date.accessioned2020-08-20T15:15:09Z
dc.date.available2020-08-20T15:15:09Z
dc.identifier.urihttps://hdl.handle.net/11668/18983
dc.description.abstractFlue gas desulfurization (FGD) is utilized by the coal-powered generating industry to safely eliminate sulfur dioxide. A FGD vessel (scrubber) synthetically creates gypsum crystals by combining limestone (CaCO3), SO2 flue gas, water and oxygen resulting in crystalline gypsum (CaSO4 ∙ 2H2O), which can be sold for an economic return. Flat disk-like crystals, opposed to rod-like crystals, are hard to dewater, lowering economic return. The objectives were to investigate the cause of varying morphologies, understand the environment of precipitation, as well as identify correlations between operating conditions and resulting unfavorable gypsum crystal growth. Results show evidence supporting airborne impurities due to the onsite coal pile, the abundance and size of CaCO3 and high Ca:SO4 ratios within the scrubber as possible factors controlling gypsum crystal morphology. In conclusion, regularly purging the system and incorporating a filter on the air intake valve will provide an economic byproduct avoiding costly landfill deposits.
dc.publisherMississippi State University
dc.subject.lccFlue gases--Desulfurization.
dc.subject.lccGypsum.
dc.subject.othercrystal morphology
dc.subject.otherflue gas desulfurization
dc.subject.othergypsum
dc.titleFactors influencing Gypsum Crystal Morphology within a Flue Gas Desulfurization Vessel
dc.typeThesis
dc.publisher.departmentDepartment of Geosciences
dc.publisher.collegeCollege of Arts & Sciences
dc.date.authorbirth1987
dc.subject.degreeMaster of Science
dc.subject.majorGeosciences
dc.contributor.committeeClary, Renee M.
dc.contributor.committeeSchmitz, Darrel
dc.contributor.committeeGabitov, Rinat


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