Record Display for the EPA National Library Catalog


Main Title Pilot Plant Moving Grate Furnace Study of Limestone-Dolomite for Control of Sulfur Oxide in Combustion Flue Gas.
Author Whitte, Charles M. ; Hogstro, Robert G. ;
CORP Author Peabody Coal Co., St. Louis, Mo. Chemcoke Div.
Year Published 1969
Report Number PH-22-68-68;
Stock Number PB-184 944
Additional Subjects ( Sulfur compounds ; Air pollution) ; ( Waste gases ; Purification) ; ( Coal gas ; Absorption) ; ( Carbonate minerals ; Waste gases) ; Coal ; Dioxides ; Aragonite ; Calcite ; Particle size ; Calcium oxides ; Pilot plants ; Sulfur dioxide ; Dolomite(Mineral) ; Gas purification ; Flue gases
Library Call Number Additional Info Location Last
NTIS  PB-184 944 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 76p
Tests were made to evaluate the effectiveness of six selected solid sorbent materials in removing sulfur dioxide (SO2) from coal combustion gases in a chain grate-fired furnace. Effects of additive feed rate, particle size, and injection temperature were studied. Calcination and calcium oxide utilization were determined. The sorbents used in this investigation were an aragonite, a calcite, two types of dolomite, and a chalk. Red mud, the dried tailings from the namufacture of alumina from bauxite, was also tested. Sulfur dioxide removal ranged from 6 to 65 per cent depending upon operating conditions. Sorbents compared on a per-unit-weight-of-raw-stone basis show that the calcites and aragonite removed greater amounts of SO2 than the dolomites. Sorbent 1683, an aragonite, was the most effective of all materials tested when injected into the gas stream. However, it was relatively ineffective when mixed with the coal prior to combustion. It was found that SO2 removal increases with increasing sorbent feed rates. (Author)