The produced coke has a high sulfur content, emits blue smoke, and dry quenching is not feasible – what are the reasons?
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It is currently dry quenching of coke. Due to strict SO2 control, the SO2 level in the dust removal system during dry quenching used to be 80, but it is now 50; this prevents the dry quenching process from operating properly, forcing frequent switching to wet quenching, which affects normal production. If SO2 levels are high, and the burner temperature is low, then SO2 levels will inevitably be high ； There is another phenomenon: when the furnace temperature is high, the coke emitted when it is pushed out produces blue smoke, and the SO2 level is also high. This is hard to understand. When the furnace temperature is high, the coke is over-treated and only fixed carbon remains. Has anyone encountered this?
Sulfur dioxide levels are high; install desulfurization equipment. A high level of sulfur dioxide is not necessarily related to the furnace temperature. How about using low-sulfur coal, or installing desulfurization facilities?
This post was last edited by sdwfsgyykai on 2020-5-17 08:20. High-sulfur coal varieties were primarily used in coal blending, and approximately (60~70%) of the sulfur in the coal ended up in the coke.