||Sorption of Elemental Mercury by Activated Carbons.
Krishnan, S. V. ;
Gullett, B. K. ;
Jozewicz, W. ;
||Acurex Environmental Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Activated carbon ;
Pollution control ;
Surface properties ;
Stationary sources ;
||Some EPA libraries have a fiche copy filed under the call number shown.
||The paper gives results of a study of the mechanisms and rate of elemental mercury (Hg) capture by activated carbons, using a bench-scale apparatus. Three types of activated carbons, two thermally activated (PC-100 and FGD) and one impregnated with elemental sulfur (S) (HGR), were used to study the effects of surface area (approximately 550-1000 sq m/g), sorption temperature (23-140 C), and elemental Hg concentration (30 and 60 ppb of elemental Hg in nitrogen). Investigations revealed that sorption occurs in active sites in PC-100 and FGD which are either depleted or deactivated at 140 C. Desorption studies for PC-100 and HGR revealed the sorption mechanism to be a combination of physisorption and chemisorption at 23 C, whereas chemisorptionis the primary route at 140 C.
||Pub. in Environmental Science and Technology, v28 n8 p1506-1512 Aug 94. See also PB93-124196 and PB94-101540. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
|NTIS Title Notes
||Journal article Oct 92-Oct 93.
||Reprint: Sorption of Elemental Mercury by Activated Carbons.
||68C; 68A; 50B; 99B; 91A
||PC A02/MF A02