On the issue of ammonia-based HPF desulfurization
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Dear sea friends: In the HPF ammonia-based desulfurization system for coke oven gas, the amount of ammonia water is insufficient. Has everyone encountered this problem? (The coke oven capacity is 2.4 million tons); currently, the owner uses sodium carbonate as a supplementary source of alkali. As a result of the non-uniformity of alkali sources, the salt recovery process from the desulfurization wastewater at later stages makes it impossible to refine the product. Colleagues, let’s discuss what causes the insufficient amount of residual ammonia water
#Here’s a quick reply: The moisture content in coal mixtures is generally around 8%, while the combined water content is about 2%. This means that the remaining amount of ammonia water is roughly 10% of the total coal loaded. In other words, the daily remaining amount of ammonia water = daily coal loading amount * 10%； How could it be insufficient?