SO2 spike in TGU Incinerator

[kalinjm]

After a power blip in early April, we have been experiencing periodic SO2 spikes in our TGU incinerator. The power blip caused the sulfur plant to completely shut down. For the past month they have been happening about once a day. I am hoping for a brainstorming session on to what would be causing this and the indicators to look at. We have looked at a lot of things, but I won’t mention them just yet. It seems to be something subtle that we can’t quite put our hands on. Any ideas are welcomed, especially if you have had similar problems in your sulfur plants.

Thanks

 

[kalinjm]

After troubleshooting the unit, we believe the SO2 spike is caused by a type of burping in our SCOT unit or some form of COS or CS2 break through. Has anybody experienced an SO2 spike caused by these factors?