Abstract
Transformation of desulfurizationDesulfurization performance of activated carbonActivated carbon during multiple cycles of adsorption and regeneration was investigated and the causes were analysed. Results showed that the desulphurization performance of activated carbonActivated carbon descended gradually with cycle times of adsorption and regeneration increasing. The properties of activated carbonActivated carbon were characterized by using XRD, XPS, TGA, and FT-IR. Results showed that the acidic functional groupsAcidic functional group contents on activated carbonActivated carbon surface increased with multiple cycles, which would affect its desulfurizationDesulfurization performance. Besides, the content of calcium sulfateCalcium sulfate in activated carbonActivated carbon increased with multiple cycles, which would be another reason for that. Furtherly, the formation process of calcium sulfateCalcium sulfate was analysed.
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