| 摘要 |
Sulfur dioxide is removed from a gaseous stream using an aqueous scrubbing slurry of magnesium and calcium scrubbing components where the process is carried out where lime and magnesium hydroxide are blended to give a molar ratio of between about 1.0 to 2.0, so as to provide a solids content in the aqueous scrubbing slurry of between about 12 to 20 percent, which includes about 10 to 15 percent suspended solids and 2 to 5 percent dissolved solids, and a dissolved sulfite content of about 13,000 to 20,000 ppm and a pH of between about 5.8-6.0.
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