Analysis of the reasons for the rapid increase in desulfurization liquid volume
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Our company has a chemical product recovery workshop associated with a coking plant with a capacity of 900,000 tons. Desulfurization is carried out using the ammonia method. The main problem at present is that during production, the amount of desulfurization liquid increases rapidly each day, forcing us to discharge it externally. We have also checked the water supply valves and heat exchangers, and no leaks were found； I seek expert advice to analyze the reasons and find solutions ；
You need to provide a detailed description of your process and equipment so that a thorough analysis can be carried out. There are also many different methods for ammonia-based desulfurization
Is there a leak in the ammonia vapor condenser? It is considered that external water has entered the desulfurization liquid. What is the quality of the desulfurization solution?
We have identified the source of water ingress; we use the soda ash method, and similar problems have occurred before
In my opinion, if the pre-cooling temperature is not properly controlled, the temperature of the gas after pre-cooling will be too high, which prevents the maximum reduction of moisture contained in the gas. This may result in a high temperature of the gas entering the desulfurization tower, while the temperature of the desulfurization liquid might be low; as a consequence, the large amount of moisture present in the gas within the desulfurization tower condenses. It is necessary to specify the control status of each indicator and conduct a detailed analysis.
The temperature of the desulfurization liquid should be 1-2°C higher than that of the gas; otherwise, the water will wash it away