How to remove organic sulfur from coke oven gas? !
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For general treatment, is it necessary to remove organic sulfur? What process should be used? Adsorption method? Dry method? Wet method?
Organic sulfur is treated with zinc oxide; hydrogen sulfide is treated with low-temperature methanol washing, NHD, and a small amount can also be handled using zinc oxide
Zinc oxide is mainly used for precise desulfurization, a very precise form of it. The low-temperature methanol washing you mentioned usually involves relatively high concentrations, right? For organic sulfur, zinc oxide is used; I’m not really sure about the principle behind this. Generally, it is first catalytically converted into H2S, and then purified.
Hydrogen sulfide reacts with zinc oxide to form a zinc sulfide precipitate, right?
Generally, organic sulfur is first converted into inorganic sulfur, after which the desulfurization process is determined based on factors such as load and sulfur content.
If strict requirements are placed on sulfur content, hydrogenation conversion combined with adsorption desulfurization can be used; if the hydrogen sulfide content in the gas is high, it is advisable to employ wet desulfurization first