Abstract
Three different kinds of MnOx desulfurization sorbent were prepared by different calcination temperature and reduction method. The properties of H2S removal and COS formation over the prepared MnOx were measured in the fixed bed at 550°C, and the MnOx phases before and after desulfurization were characterized by XRD and XPS. The results show that the sequence of the amount of COS formation over three MnOx samples is Mn3O4>Mn2O3>MnO, and the sequence of H2S penetration time is Mn3O42O32 are good for COS formation. With the single sulfur and MnS2 accumulated in MnOx desulfurization sorbent, the more and more the amount of COS formed during desulfurization.
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