Stabilization of calcium-based slurries for sox reduction by in-

Details Stabilization of calcium-based slurries for sox reduction by in- Stabilization of calcium-based slurries for sox reduction by in-

1995-04-27

1996-05-21

Straub, Gary P.

Catalyst, solid sorbent, or support therefor: product or process

Solid sorbent

502500, 502517, 25218211, 25218232, 423266, B01J 2004, B01D 5348

Patent

active

055189806

ABSTRACT:
More reliable removal of sulfur oxides (SO.sub.x) from combustion effluents by in furnace injection is achieved by stabilizing slurries of calcium carbonate (limestone), calcium oxide (lime) and calcium hydroxide (hydrated lime) for extended periods of time and during in-furnace injection. The slurries are stabilized by a stabilization system comprising a generally hydrophobic surfactant having an HLB of less than about 8 and a more hydrophilic surfactant having an HLB of at least about 8, wherein the HLB values of the hydrophobic and the hydrophilic surfactants differ by at least about 3.

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