Notice of RetractionInfluence of Gas Composition on Hydrogen Sulfide Removal at Moderate Temperature

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

The influence of gas composition on hydrogen sulfide removal from coal gas by zinc oxide sorbent was investigated at moderate temperature using TG technique. It was found that the removal of H₂S by ZnO can vary greatly depending on the gas composition. Addition of H₂, H₂O to the inlet gas stream could promote the reaction rate, whereas the desulfurization was inhabited by CO with the concentration more than 10 %, and carbon deposit was found to be responsible for the negative effect. Dry CO₂ almost had no influence on reaction, however when it was present with vapor, the competitive adsorption between two acid gases, CO₂ and H₂S, resulted in a decrease of reaction rate.