Record Display for the EPA National Library Catalog


Main Title Mercury Control by Injection of Activated Carbon and Calcium-Based Sorbents.
Author Krishnan, S. V. ; Gullett, B. K. ; Jozewicz, W. ;
CORP Author Acurex Environmental Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher 1997
Year Published 1997
Report Number EPA-68-D5-0005; EPA/600/A-97/011;
Stock Number PB97-193783
Additional Subjects Mercury(Metal) ; Air pollution control ; Calcium ; Sorbents ; Activated carbon ; Mercuric chloride ; Chemisorption ; Lime ; Combustion products ; Municipal wastes ; Incinerators ; Flue gases ; Chemical reactors ;
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB97-193783 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 50p
The paper compares the capture of both elemental mercury (Hg deg) and mercuric chloride (HgCl2) vapor by different types of commercially available activated carbons and calcium (Ca)-based sorbents, including quicklime (CaO) and hydrated lime, Ca(OH)2. Comparisons were made at two temperatures in bench-scale reactors, with other conditions remaining identical. Study results showed that, at the lower temperature (about 100 C), Ca-based sorbents capture incoming HgCl2 as well as activated carbons. At the higher temperature (140 C), activated carbons showed relatively higher capture of HgCl2 than Ca-based sorbents. However, only activated carbons exhibited significant capture of Hg deg at either temperature. Because field measurements and equilibrium predictions show that Hg in MWC flue gas exists primarily as HgCl2, the results indicate the possibility of injecting CaO or Ca(OH2) along with activated carbons to reduce operating costs.