Why is the CO content high in the gas from the dry quenching process, and why is a large amount of air being introduced?
Thread Content
Plant No. 2’s dry quenching furnace (140t) is primarily used for quenching coke from furnaces No. 3–4; the circulating gas contains a high level of CO, which requires a large amount of air to be introduced, at 16,000 m3/h. On the other hand, Plant No. 1’s dry quenching furnace (140t) is mainly used for quenching coke from furnaces No. 1–2, with an air intake of around 10,000 m3/h. The two dry quenching furnaces can be used interchangeably – coke from furnaces No. 1–2 can be processed in Plant No. 2, while coke from furnaces No. 3–4 can be processed in Plant No. 1. The operating parameters remain largely unchanged; Plant No. 2 still has a high CO level and requires a large amount of air. The influence of coke as a factor has been ruled out for now, and no leaks have been identified yet.
What about the hydrogen content? Check to see if there’s a tube rupture
About 1% hydrogen – not high, but higher than in the other two furnaces. I suspect there might be a slight leak in the economizer or evaporator, but I can’t be sure.