What is the effectiveness of complexed iron solutions in removing organic sulfur?
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If acid gas (H2S) contains organic sulfur (mercaptans and carbonyl sulfide), when using the complexed iron process to recover sulfur, can the organic sulfur be removed by the complexed iron solution?
Complexed iron solution can remove hydrogen sulfide from acidic gases. However, for organic sulfur compounds (such as mercaptans and carbonyl sulfide), the removal efficiency of the complexed iron solution is poor. This is because the chemical properties of organic sulfur differ from those of hydrogen sulfide, preventing it from being directly absorbed by iron-chelating solutions. Therefore, when using the complexed iron process to recover sulfur, other desulfurization technologies are also required to ensure that organic sulfur is effectively treated. .