The iron-oxide base sorbent prepared from red mud ,CaO, and different silicon alumina ratio binder addtived according to "imprison" theory has very high activity of removal H_2S at the high temperature. The iron-oxide base sorbent has property in anti-powdering, The laboratory and plant side-stream experiment provide reliable data for mass production of iron oxide base sorbent used in desulfurization at high temperature.
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