The exit temperature at the first stage increases.
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In the past two days, the exit temperature at layer 1 has risen to 603°C, with a gas concentration of 8.1%. The inlet temperature at layer 1 is 405°C; there are no significant changes in other aspects, and the operating conditions remain unchanged. What could be the cause of this? Could it be a problem with the instruments? This post was last edited by in the blink of an eye on 2008-1-6 at 10:11
It is an acid production unit made from what materials; it is recommended to analyze the gas concentration and calibrate the instruments.
For acid production from sulfur concentrate, the gas concentration has been verified as accurate; now I suspect it’s an issue with the instruments, as there are no qualified instrument technicians available to verify them.
Then it must be a problem with the instrument. At 603 degrees, the equilibrium conversion rate for 8.1% gas concentration is only around 72%, while at the aforementioned temperature the conversion rate reaches around 87%. This is impossible.
I also agree with the opinion of the poster on floor 4; using the thermal insulation coefficient allows us to calculate the reaction temperature T and the conversion rate!
To resolve the issue, it was indeed a problem with the instruments. After checking them, under the same conditions of high gas concentration, the inlet temperature was 420°C while the outlet temperature was 585°C. It is clear that the instruments serve as the eyes of production, and their accuracy has a direct impact on manufacturing processes.
Sometimes, problems with instruments can be fatal.
Hehe, indeed, you are really good at this
I would like to ask how to calculate gas concentration? Is there any formula provided? Thank you!
During the production process, the gas concentration is determined through analysis; if you want to carry out calculations, you need to know the air volume and the sulfur content. This post was last edited by zhangwen*ng on 2008-1-10 15:22]