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Pressure test passed but vacuum test failed
Sorry, I mean flexibles yes, stainless steel, 60 degree cone fittings. I'll check with my supplier, thank tou- seagal3232
- Post #5
- Forum: Boiler and Pressure Vessel engineering
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Pressure test passed but vacuum test failed
It's all under ambient temperature, and you can hear the leak whistle. I should add that the vessel is weighted so it's all connected with stainless steel hoses, 60 degree cone fittings- seagal3232
- Post #3
- Forum: Boiler and Pressure Vessel engineering
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Pressure test passed but vacuum test failed
Hello everyone, My company is working on a vessel that can work under pressure (around 3-5barg) and under vacuum (-0.5barg), So far the positive pressure tests were successful with no leaks or pressure drops, but during the vacuum test, the pressure rises really quickly, Is this normal? My...- seagal3232
- Thread
- Replies: 8
- Forum: Boiler and Pressure Vessel engineering
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What's the best way to dissolve CO2 in water in a continuous process at low pressure?
It is continuous, it comes from venting at a certain section of the process, I don't have confirmation of the exact flowrate, a ballpark figure might be 50-100kg/h, A quill might work, it could be an option. Can't I use a sparger in a tank as long as I have enough residence time?- seagal3232
- Post #8
- Forum: Chemical process development
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What's the best way to dissolve CO2 in water in a continuous process at low pressure?
I've been reading a bit regarding the solubility of CO2 in brine, and it seems that it decreases as you increase the salt concentration due to the salting-out effect, So on the one hand, solubility should increase by increasing the pH, due to equilibrium, but the salting out effect cancels...- seagal3232
- Post #6
- Forum: Chemical process development
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What's the best way to dissolve CO2 in water in a continuous process at low pressure?
It doesn't have to be plain water no, we can add a base. Maybe a stirred tank with base dosage and a bubbling mechanism at the bottom would be a good method then.- seagal3232
- Post #3
- Forum: Chemical process development
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What's the best way to dissolve CO2 in water in a continuous process at low pressure?
Hi all, I'm trying to dissolve a reasonable amount of CO2 into water to form carbonic acid (so no gas trapped in the liquid at high pressure), I was thinking of using some sort of absorption column to have a continuous process where CO2 is dissolved into the water, but I don't know if that's...- seagal3232
- Thread
- Replies: 11
- Forum: Chemical process development
