Help: In wet flue gas desulfurization, the regenerated elemental sulfur turns into blue slag-like material~?
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Our plant uses wet flue gas desulfurization, namely the ammonia water absorption method. But recently, I’ve encountered a really troublesome issue: the regenerated elemental sulfur turns into a slag-like substance that easily clogs the pipes. I have to clean them at least twice a day, which is both time-consuming and labor-intensive. Fellow sailors, what could be causing this? Is the amount of air blown in insufficient? Also: For media with different viscosities, does the flow rate affect the likelihood of viscous substances causing slow blockages in the pipes?
You mean coking desulfurization, right? First, we need to know what the composition of the slag is Generally, this slag is a mixture of coal dust, tar, by-products (such as ammonium salts like ammonium thiocyanate), and a small amount of desulfurization catalyst. To reduce the amount of slag, the following methods can be employed: 1. Operate the dust and tar removal equipment properly to minimize the amount of coal dust and tar. 2. Extract the by-products salts from the desulfurization solution to reduce their concentration in it. 3. Separate the sulfur foam formed during desulfurization in a timely manner using desulfurization equipment, to remove slag and sulfur. For technical inquiries, please contact Manager Hu at 13181815979