Removal of Vapor-Phase Elemental Mercury over a CuO/AC Catalyst

Jun Wei Wang; Xue Jun Kong; Rong Bin Du; Yanjie Dong

doi:10.4028/www.scientific.net/AMR.610-613.64

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Removal of Vapor-Phase Elemental Mercury over a CuO/AC Catalyst
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Removal of Vapor-Phase Elemental Mercury over a CuO/AC Catalyst

Abstract:

Removal of vapor-phase elemental mercury (Hg⁰) over an activated coke (AC) and activated coke supported CuO catalyst (CuO/AC) were studied under N₂+HCl atmosphere. This paper describes the influences of CuO loading, reaction temperature, Hg⁰ concentration and space velocity on Hg⁰ removal over CuO/AC. It was found that CuO/AC had a higher Hg⁰ removal capability than that of AC, which can be attributed to the oxidation activity of CuO. The capability of CuO/AC for Hg⁰ removal increased with an increase of CuO loading (1-20 wt.%). The Hg⁰ removal capability was the highest at around 180 °C in the temperature range of 120-200 °C, which can be due to the co-effect of adsorption and oxidation. As Hg⁰ concentration and space velocity decreased, the Hg⁰ removal efficiency increased.