Adsorption of Hydrogen Sulfide by Zinc-Containing Activated carbon

Authors: Nakamura T.; Kawasaki N.; Hirata M.; Oida Y.; Tanada S.

Source: Toxicological and Environmental Chemistry, Volume 82, Number 1, 1 January 2002 , pp. 93-98(6)

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Abstract:

Zinc-containing activated carbons (Zn-ACs) were prepared by impregnating raw activated carbon (R-AC) with zinc acetate solution. Then, the capacity of Zn-ACs to adsorb hydrogen sulfide as an offensive odor was evaluated. The values of physical properties of Zn-ACs were smaller than those of R-AC due to the filling pores of activated carbon by zinc acetate. However, the amounts of hydrogen sulfide adsorbed onto Zn-ACs were larger than that onto R-AC in equilibrium pressure below 100 hPa. The increase in the amount adsorbed onto Zn-ACs at the lower pressure region may be due to the chemical interaction of the zinc on the adsorbent and hydrogen sulfide.

Keywords: Hydrogen sulfide; Adsorption; Activated carbon

Document Type: Research article

Affiliations: 1: Faculty of Pharmaceutical Sciences, Kinki University, Kowakae 3-4-1, Higashi-Osaka, Osaka 577 8502, Japan

Publication date: 2002-01-01