PROCESS OF PRODUCING CALCIUM HYDROXIDE FOR ABSORPTION

摘要

In a preferred process for treating a first gas medium containing an acidic material, the process comprising comminuting calcium oxide in a second flowing gaseous medium containing water to form particulates of calcium hydrate sorbent suspended in the second flowing gaseous medium. The particulates in the second gaseous medium are conveyed to a spray dryer absorber and the particulates are contacted in the spray dryer absorber with the first gaseous medium in admixture with an aqueous material for a time sufficient to allow at least some of the acidic material to react with said particulates to form solid products. At least some of the solid products are separated from the first gaseous medium.