Record Display for the EPA National Library Catalog


Main Title Fundamental Studies of Dry Injection of Calcium-Based Sorbents for S02 Control in Utility Boilers.
Author Newton, G. H. ; Moyeda, D. K. ; Kindt, G. ; McCarthy, J. M. ; Chen, S. L. ;
CORP Author Energy and Environmental Research Corp., Irvine, CA.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher Dec 88
Year Published 1988
Report Number EPA-68-02-4239; EPA-600/2-88/069;
Stock Number PB89-134142
Additional Subjects Desulfurization ; Boilers ; Sulfur dioxide ; Air pollution control equipment ; Sorbents ; Calcium inorganic compounds ; Chemical reactions ; Porosity ; Utilities ; Combustion products ; Natural gas ; Coal fired power plants ; Stationary sources
Library Call Number Additional Info Location Last
NTIS  PB89-134142 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 330p
The report describes research to determine the mechanisms which limit the extent of reaction between SO2 and calcium-based sorbents (CaCO3 and Ca(OH)2) by measuring the in situ physical structure and reactivity of sorbent injected into a combustion environment for residence times as short as 35 ms. Four models of the sulfation reaction were used to guide the research and interpret the data. The extent of sorbent utilization was found to be limited by porosity losses during the sorbent activation process. In situ porosities, a fraction of that theoretically possible, were measured in the absence of SO2. Calcines from CaCO3 suffered greater losses in porosity than those from Ca(OH)2 which, along with the larger CaCO3 particle size, accounts for the substantial differences in SO2 capture between these two sorbents.