标题：Optimizing the characteristics of calcium sulfate dihydrate in the flue gas desulfurization process: Investigation of the impurities in slurry-Cl-, Fe3 , Mn2
期刊名称：Chemical Industry and Chemical Engineering Quarterly
印刷版ISSN：1451-9372
出版年度：2017
卷号：23
期号：3
页码：293-299
DOI：10.2298/CICEQ160612043L
出版社：Association of the Chemical Engineers
摘要：The effects of limestone, Cl-, Fe3 and Mn2 in slurry on the characteristics of calcium sulfate dehydrate (DH) in flue gas desulfurization (FGD) process were investigated. The moisture content, particle size distribution, and crystal morphology were considered as end use characteristics of DH. As a result, the number of needle-like DH crystals was increased with increasing total contents of MgCO3, Al2O3 and Fe2O3 in limestone. Cl ions were reported to distort the crystal structure and change the crystals from orthorhombic to irregular. Mn2 can increase the desulfurization efficiency by catalyzing the oxidation of SO2. Finally, Fe3 will inhibit crystal growth of all faces, except {011} and {111}.
关键词：calcium sulfate dehydrate; flue gas desulfurization; limestone; chloride ion; iron ion; manganese ion.
