Record Display for the EPA National Library Catalog


Main Title Sulfur retention in coal ash /
Author Maloney, Kenneth L. ; Maloney, K. L. ; Engle, P. K. ; Cherry, S. S.
Other Authors
Author Title of a Work
Engel, P. K.
Cherry, S. S.
CORP Author KVB, Inc., Tustin, CA.;Industrial Environmental Research Lab., Research Triangle Park, NC.
Publisher The Office ; Available to the public through the National Technical Information Service,
Year Published 1978
Report Number EPA-600/7-78-153b; EPA 600/7-78-156b; EPA-68-02-1863
Stock Number PB-291 448
OCLC Number 07069665
Subjects Coal ash. ; Coal--Sulfur content. ; Furnaces--Combustion. ; Coal--Sulphur content
Additional Subjects Ashes ; Sulfur oxides ; Adsorption ; Coal ; Combustion products ; Calcium oxides ; Sodium oxides ; Air pollution control ; Thermochemistry ; Chemical equilibrium ; Field tests ; Linear regression ;
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  EPA-600/7-78-153b Region 1 Library/Boston,MA 05/25/2016
EJBD ARCHIVE EPA 600-7-78-153b Headquarters Library/Washington,DC 06/24/2013
EKBD  EPA-600/7-78-153b Research Triangle Park Library/RTP, NC 12/05/2003
ESAD  EPA 600-7-78-153B Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-291 448 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation x, 59 pages : illustrations ; 28 cm.
The report gives results of an analytical study to assess the potential for sulfur retention in various types of coal-fired boilers. Results of a field test of 10 industrial coal-fired boilers were used to evaluate the impact on sulfur retention of the operating variables (load and excess O2). The effect of ash composition on sulfur retention was also evaluated, using a linear regression analysis. The expression % S Emitted = a+b (% Na2O/% CaO) + c (Load/100,000), where a, b, and c are constants, gave the best overall fit to the two pulverized coal-fired boiler data. The field test and regression analysis results were supported by equilibrium coal ash composition calculations over a range of temperatures and theoretical air for four coal ash compositions. The calculations show that significant fractions of the sulfur can be tied up as Ca and Na salts under both reducing and oxidizing conditions at temperatures below 250F. A minimum in the total condensed phase sulfur species is predicted at stoichiometric conditions for all temperatures.
"Industrial Environmental Research Laboratory, Office of Energy, Minerals, and Industry, Research Triangle Park, N.C." Nov. 1978. "Contract no. 68-02-1863, program element no. EHE624A." Includes bibliographical references.