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Study For H2S Removal Unit

The H2S removal capabilities of each material were measured by a mass spectrometer, to detect the H2S concentration after the adsorption in an ambient environment. The activated ash adsorbent has the highest removal capacity at 3.22 mgH2S g−1, while wood-derived biochar has slightly lower H2S removal capability via

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The physicochemical properties of pristine and spent materials were characterized by the thermogravimetric analyzer, elemental analysis, X-ray fluorescence spectroscopy and N2 adsorption and desorption. Wood-derived biochar is a highly porous material that adsorbs H2S by physical adsorption of the mesoporous structure. Activated ash is a non-porous material which adsorbs H2S by the reaction between the alkaline compositions and H2S.

H2S removal efficiency of pyrolysis biochar and sludge at ambient temperature in various dry gas matrices that include N2, air and syngas.

The results demonstrated the activated chars derived from waste-derived materials could effectively play the role of syngas desulfurization under dry atmosphere, which is eco-friendly and affordable. Florent. Synthesized sewage sludge/porous carbon composites as H2S adsorbents.

The good H2S removal performance of sludge-derived adsorbents in gas desulfurization relates to the surface basicity due to the high content of calcium and magnesium, and also the oxidation reactions with an inorganic phase such as iron or copper species.