| 摘要 |
<p>PURPOSE:To obtain a desulfurizing agent by which a sulfide contained in a reducing gas is removed effectively and which can be regenerated and used repeatedly by using manganese nodule. CONSTITUTION:A manganese nodule is used as a desulfurizing agent having excellent adsorption performance and regeneration efficiency. The manganese nodule is porous generally and an amorphous transition-metal oxide (hydroxide) and its essential component is Mn and Fe, and as a trace element, Ni, Co, Cu and Ti, etc. are contained by about 0.1-1.0% respectively. In the manganese nodule as desulfurizing agent in this method, the total of Mn and Fe is contained >=50% expressed in terms of MnO2 and Fe2O3. Since the adsorption capacity is increased and also the manganese nodule can be regenerated for a short time in comparison with conventional iron ore, manganese nodule is the desulfurizing agent having excellent adsorption performance and regeneration efficiency.</p> |
