Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Role of Porosity Loss in Limiting SO2 Capture by Calcium Based Sorbents.
Author Newton, G. H. ; Chen, S. L. ; Kramlich, J. C. ;
CORP Author Energy and Environmental Research Corp., Irvine, CA.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher c1989
Year Published 1989
Report Number EPA-68-02-4239; EPA/600/J-89/132;
Stock Number PB90-126111
Additional Subjects Air pollution control ; Porosity ; Sulfur dioxide ; Sorbents ; Calcium hydroxides ; Calcium carbonates ; Injection ; Area ; Sintering ; Carbon dioxide ; Particle size ; Performance evaluation ; Comparison ; Reprints ; Dry methods
Library Call Number Additional Info Location Last
NTIS  PB90-126111 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 03/10/1990
Collation 9p
The article discusses a study to determine the role of porosity loss in limiting SO2 capture by calcium based sorbents. The extent of high temperature (900-1300 C), short time (<1 s) SO2 capture was found to be limited by temperature dependent losses in the porosity of calcium based sorbents. At 970 C, these porosity losses were caused by CO2-activated sintering. Sulfation of the sorbents either prevented or reduced the extent of porosity losses. Slightly lower levels of SO2 capture by hydroxides from different commercial sources and significantly lower levels of capture by calcium carbonates compared to hydroxides were attributed to differences in particle size and the degree of porosity loss.