I would like to ask about the lag time of the H2S/SO2 ratio analyzer
Thread Content
I haven’t been here for a long time. First, I’d like to thank the experienced masters who have helped me; hello to you all. I’ve started learning *theory again recently and run into a difficult problem. The H2S/SO2 ratio analyzer has a very short lag time, but I wonder exactly how long that lag is. I also want to know how long it takes for the gas to travel from the combustion furnace to the ratio analyzer – how is that calculated? It feels good to have an idea of this time so it’s easier to carry out the operations. How long would it take to walk all the way to the tail furnace? Is it difficult to calculate? Thank you all
No detailed calculations have been done for this, but based on the actual operation of our equipment, there is a delay of around 30 seconds (the trend in the ratio changes can be confirmed by the variations in the temperature of the reactor). If calculations are to be done, factors such as the acid gas flow rate, the volume of gas after the reaction, and changes in pipe diameter need to be determined; after roughly calculating the flow velocity, the lag time can then be determined.
It depends on the process; it’s estimated to take 15-20 seconds
Regarding what you said about \"verifying the trend in the ratio changes through changes in the reactor temperature,\" how is this verification carried out? Please teach me this empirical method; thank you.
It’s very simple: within the trend of your data, compare the peak value of the ratio with the peak value of the emission indicator, to see how much time separates the two! The same principle applies to the temperature of the reactor: the higher the temperature, the lower the ratio. A higher temperature corresponds to a lower ratio value, and the time difference between the two indicates the lag time of the ratio!