Abstract
Lignite char supported Fe-Zn sorbents were prepared by means of impregnation of Fe and Zn into coal followed by steam gasification. The sulfidation experiments were carried out using a fixed-bed quartz reactor in the temperature range of 473 to 673 K using simulated coke oven gas with a gas space velocity of 1,000 h–1. Strcuture changes of sorbents during sulfidation were analyzed using X-ray diffraction and scanning electron microscopy. The results show that the sorbents can remove both H2S and coke oven gas from the simulated coke oven gas with high efficiency, and the desulfurization efficiency increased with increasing metal loading level.
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