CO has been detected in the cooling water of the gasification burner; how much longer can the gasification furnace operate?
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CO has been detected in the cooling water of the gasification burner. How much longer can the coal-water slurry four-nozzle gasification furnace operate? The CO level is around 100 ppm, and it keeps fluctuating, going up and down. I would like to ask for advice on this? Thank you for your reply!
If it can be confirmed that the carbon monoxide in the water comes from leaks in the gasification furnace, it would be advisable to test the dissolved hydrogen in the water as well, since hydrogen is also one of the products of the gasification process; this would constitute conclusive evidence of a leak in the furnace. There is 100 ppm of carbon monoxide in the water, which indicates a significant level of leakage; this warrants attention with regard to operations and safety. This fluctuation in pressure is related to whether the pressure fluctuations inside the furnace are essentially synchronized; if so, there is a significant leak.
It is preliminarily determined that there is a problem with the burner coil, causing gas to leak into the water; the system pressure has not changed significantly. Preparations have been made, including a plan for shutting down the furnace, with the intention to do so tomorrow. After shutting down the furnace, removing the burner reveals any problems with the burner itself. Thank you for the reply from the 3rd floor. Thank you!
It is recommended that you use a detector to check whether CO can be detected at the vent on top of the burner cooling water tank. Alternatively, you can use a negative-pressure sampler at the top of the return water separators for the four burners, and then use a detector to check for the presence of CO. If CO is indeed present, it is advised to shut down the furnace immediately; without specific data, it is impossible to determine how long the system can continue to function. The burner system behaves differently each time it is used. As long as the judgment is accurate, proceed with the furnace shutdown boldly; if there is no backup furnace, stop the operation, replace the burner, and restart operation.
From the detection of CO to shutdown, the plant remained in operation for 7 days; upon disassembly and inspection, it was found that the end welds of the burner cooling water pipes and the outer epoxy coating were leaking.
Why is it necessary to detect dissolved hydrogen in water at the same time? Can’t we just detect carbon monoxide instead?
You just need to go and find out in detail the differences between the methods for detecting dissolved carbon monoxide in water and those for detecting dissolved hydrogen in water.
Sometimes accidents are caused by the mindset of \"I can still try to save it.\" If the process parameters deviate from the recommended values, it’s better to shut down the system promptly