Reduction of Atmospheric Pollution by the Application of Fluidized-Bed Combustion and Regeneration of Sulfur-Containing Additives.

摘要

The report discusses fluidized-bed combustion (FBC) as a means of removing from the gas phase nearly all of the atmospheric pollutants (sulfur and nitrogen compounds) generated during the combustion of fossil fuels. Particulate lime solids (additives) are introduced into the fluidized bed and react with the sulfur compound formed during combustion. It discusses:pollution control by FBC of oil with an excess of air and by the combustion of coal with a deficiency of air;the thermodynamics of several proposed processes for regenerating additives;and regeneration of sulfur-containing additive by the two most promising processes--a one-step reductive decomposition of CaSO4and a two-step (reduction-CO2/H2O regeneration) procedure. (Modified author abstract)