Issues related to sulfur in coke gasification?
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It is a fixed-bed atmospheric pressure gasification furnace using coke as the feedstock, with a sulfur content of 1.5%. I would like to know in what form sulfur exists in the gas produced after gasification? Is it H2S or SO2, or both? What is the approximate ratio? Personally, I think H2S is present, but this cannot explain the phenomenon of S and O2 reacting to form SO2 after air is blown in! Thank you, friend!
Sulfur in gas exists mainly in the form of H2S, with a small amount of organic sulfur as well. Sulfates are mainly present in the ash. Does inflating air result in a reaction similar to the Claus reaction? Not very clear
The sulfur content is on the high side; generally, it is required that the sulfur content in coal be ≤0.6, or else a high desulfurization capacity is necessary.
High-sulfur coal is inexpensive, and the cost savings are sufficient to cover the operating costs and investments associated with desulfurization!