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Main Title Bench-Scale Investigation of Mechanisms of Elemental Mercury Capture by Activated Carbon.
Author Jozewicz, W. ; Krishnan, S. V. ; Gullett, B. K. ;
CORP Author Acurex Environmental Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher Jul 93
Year Published 1993
Report Number EPA-68-DO-0141; EPA/600/A-94/132;
Stock Number PB94-190329
Additional Subjects Mercury(Metal) ; Air pollution control ; Activated carbon ; Chemical reactions ; Sorption ; Sorbents ; Stationary sources ; Flue gases ; Toxic hazards ; Desorption ; Chemisorption ; Comparative evaluation ; Coal combustion ; Municipal wastes ; Combustion chambers ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB94-190329 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 20p
The paper gives results of an investigation of the sorption and desorption of gaseous elemental mercury by activated carbon sorbents. Two sorbents were chosen for the study, one (PC-100) thermally activated and the other (HGR) chemically impregnated with sulfur. The sorbents had similar particle size (approximately 20 micrometers) and surface area (approximately 1000 sq m/g). Different reaction conditions of temmperature--23 C (or ambient) and 140 C--and mercury concentration (30 and 60 ppb in nitrogen) were used. The type of activated carbon, the temperature, and the mercury concentration showed strong effects on overall sorption behavior. At 140 C, chemisorption was found to be the only mechanism for elemental mercury capture for both sorbents.