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Air stripping sulfuric acid

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jamiegla1

Chemical
Mar 20, 2006
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Hello and thanks in advance for any help.
I am trying to troubleshoot a small air stripping tower that removes dissolved chlorine from 75% sulfuric acid solution. The flowrate of sulfuric is 2.5GPM with ~1200 ppm Cl2. Only 700 ppm of Cl2 is being removed. The air flows at 5psig and 50SCFM. Tower is 10" ID and 10 ft of 1" jaeger tri-pack. I have done hand calcs and it says we have 10 times more air than we need but when i increased the air flow in the field, we were able to strip a little more. We are topped out at air flow currently due to piping restrictions. Does anyone have experience with this type of system or know why the hand calcs fail to give the right answers? I used Henry's law based on solubility charts (1200ppm Cl2 saturates sulfuric at this temp.)
Thanks!
 
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