The Properties of Iron Oxide Desulfurization Sorbents Regenerated under the Synergy of SO sub(2)-O sub(2) Atmosphere

Iron oxide (Fe sub(2) O sub(3)) desulfurization sorbent was prepared from FeSO sub(4) and NH sub(4) HCO sub(3) by precipitation method, and its regeneration behavior under different atmosphere was studied by using Thermos gravimetric analyzer. It is found that the regeneration of Fe sub(2) O sub(3) desulfurization sorbent is the best in the synergy of SO sub(2)-O sub(2) atmosphere. When the concentration of O sub(2) or SO sub(2) in the synergy of SO sub(2)-O sub(2) atmosphere was increased, the regeneration time can be reduced, which is beneficial to the regeneration of iron oxide desulfurization sorbent. The regeneration of Fe sub(2) O sub(3) desulfurization sorbent in the synergy of SO sub(2)-O sub(2) atmosphere can not only prevent sorbent sintering in single O sub(2) atmosphere but also improve the rate of regeneration in single SO sub(2) atmosphere.