Desulfurization of Coal in a Fluidized-Bed ReactorCoal Desulfurization
Document TypeBook Chapter
Publication VersionPublished Version
AbstractThe pioneering investigation of Jacobs and Mirkus (1) showed that substantial amounts of sulfur could be removed from Illinois No. 6 coal by treatment with mixtures of air, nitrogen, and steam in a fluidized bed reactor at moderately elevated temperatures. Thus by treating coal, which had been ground in a hammer mill (100% through 8-mesh screen), with a gas mixture containing 2.7% oxygen, 35% steam, and 62.3% nitrogen at 510°C for 30 min, the sulfate and pyritic sulfur content of the solids was reduced about 80% and the organic sulfur content 10%. However, at the same time the content of combustible volatile matter was reduced about 65%. Desulfurization improved with increasing residence time and decreasing particle size, but it was affected only slightly by oxygen concentrations in the range of 2-10% or steam concentrations in the range of 0-85%. The sulfur content of the char declined as the treatment temperature.
Copyright OwnerAmerican Chemical Society
Citation InformationG.B. Haldipur and Thomas D. Wheelock. "Desulfurization of Coal in a Fluidized-Bed Reactor" Coal Desulfurization Vol. 64 (1977) p. 305 - 320
Available at: http://works.bepress.com/thomas-wheelock/37/