Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title SO2 Free Two-Stage Coal Combustion Process.
CORP Author Applied Technology Corp., Pittsburgh, Pa.
Year Published 1972
Report Number CPA-70-146; R2-72-035;
Stock Number PB-211 888
Additional Subjects ( Coal ; Desulfurization) ; ( Liquid metals ; Desulfurization) ; ( Air pollution ; Sulfur dioxide) ; ( Coal gasification ; Desulfurization) ; Combustion products ; Iron ; Slags ; Oxidation ; Carbon monoxide ; Sulfur ; Electric power plants ; Boilers ; Coal preparation ; Manufactured gas ; Cost estimates ; Design ; Iron sulfides ; Performance evaluation ; Combustion chambers ; Carburizing ; Regeneration(Engineering) ; Capital costs ; Air pollution control ; Waste gas recovery
Library Call Number Additional Info Location Last
NTIS  PB-211 888 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 55p
A new process has been developed for removing sulfur from coal (as power plant fuel) during the combustion phase. In this process, coal is dissolved by injection into molten iron and simultaneously the dissolved coal carbon is oxidized with injected air to carbon monoxide. Under the reducing conditions existing during combustion, coal sulfur is not oxidized, but transferred from the iron to a slag consisting of coal ash and added limestone. Thus, a sulfur-free offgas is produced for use in power plant boilers. Experimental combustor studies have shown that a boiler stack gas, containing less than 50 ppm sulfur dioxide is produced. Combustor design parameters were established, and indicate that three 38-foot I.D. combustors are required for a 1000 MW plant. Laboratory work has shown the slags can be successfully desulfurized with steam to produce elemental sulfur and a H2S/SO2 gas stream suitable for additional elemental sulfur recovery in a Claus Plant. Costs are given. (Author)