Author(s): J.F. Izquierdo, F. Cunill, M. Iborra, J. Tejero & J. Costa
tion of dry/wet systems to
desulfurization of coal-fired utility
stations flue gas
The tly ash reactivation in liquid phase without and with small amounts of
calcium hydroxide has been studied.
The explored variables were temperature,
hydration time, water/fly ash weight ratio and fly ash/calcium hydroxide
Some of the obtained solids showed a high surface area and large
desulfurization power probably due to the formation of hydrated complex
compounds like calcium aluminate and calcium aluminate sulfate.
Five commercial calcium hydroxides were tested in a fixed-bed reactor to
ascertain which have a greater power for sulfur dioxide removal.
amounts of different inorganic additives (sodium hydroxide, sodium chloride
and calcium clhoride) were added to the best commercial calcium hydroxide.
Calcium chloride was the best additive at the experime...
Size: 800 kb
Paper DOI: 10.2495/AIR940472
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