Desulfurization characteristics of CuO-Fe2O3 sorbents

A series of CuO-Fe2O3 sorbents with 25 wt% SiO2 as a support were prepared based on a simple mixing method in order to evaluate the effects of Fe2O3 o n their desulfurization reactivities. The initial reactivities of sorbents were tested by using a TGA and their cyclic performance was investigated in a GC/microreactor system. The activation energy calculated by the Chatterj ee-Conrad method based on the TGA experiment decreased as the content of Fe 2O3 increased. Sulfur loading in the cyclic reactions increased with increa se of Fe2O3 content, and its maximum value was 8.9 g sulfur per 100 g sorbe nt.