Pre-desulfurization using the ammonia method; frequent foaming in the ammonium sulfate saturator
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Our plant employs a pre-ammonia flue gas desulfurization process. After startup, we noticed that the ammonium sulfate saturator frequently produced foam. Upon detailed comparison, it was found that this foam differs from conventional acid tar; in severe cases, it even emerges directly from the overflow trough. This leads to increased resistance, and the mother liquor heater fails to function properly. To date, no effective solution has been found. I hope experts can discuss how to resolve this issue.
The electric tar catcher is working properly; the foam definitely isn’t tar