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[ruibernardes]

To all,
I'm working on a small installation for cleaning raw gas. I have two activated carbon beds, one ZnO bed and one CuO bed. And in one of these days appears to me in one the samples analysis a litle quantity of liquid and some blue color (this after Carbon beds and ZnO bed and before CuO bed). The liquid have two phases and the blue color appears like in one inorganic phase and didn't mix with water. In some experiences some toluene inlet the process (maybe 250ml). Maybe some Toluene arrest some compounds, but I can't explain the blue color. I put this question here for try find someone had the same problem and more experience in this field.

Regards,
Rui Bernardes