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What is the water content in the gas released after it passes through water at different pressures and temperatures?

2021-04-07View Original

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At 10 MPa and 30°C, 400 kg/h of hydrogen gas passes through a reactor operating at 220°C and 10 MPa. The reactor maintains a constant temperature and pressure; it has a diameter of 3.5 m, with a liquid phase volume of 40 m³ and a gas phase volume of 12 m³. The hydrogen gas enters from the bottom and exits from the top. How can we determine how much water vapor is carried away by the hydrogen gas after it exits? ? ?
Reply #22021-04-07
At 220 degrees, the vapor pressure is 2.37 Mpa; 2.37/10 = 23.7%, so the water content is around 23.7% (on a volume basis). There are two factors that influence this: saturation level and the amount of liquid water carried along
Reply #32022-10-14
Hello, I would like to ask: if the gaseous water is already saturated, how can one calculate the amount of liquid water carried within the gas?
Reply #42022-10-14
The amount of entrained water cannot be calculated; after being blocked by the packing and screens, it should not exceed 1%, right?
Reply #52022-10-21
Bro, does 1% refer to 1% by volume?
Reply #62022-10-21
This post was last edited by Qingcheng Jun on 2022-10-21 09:19. The weight – there’s no basis for this figure; it’s just an estimate. The reference value is not very high. The source indicates a water loss of around 1.5 at the cooling tower; therefore, the loss here should not be higher than that at the cooling tower
Reply #72022-10-21
This is inaccurate. It doesn’t say that the liquid phase is entirely water, and under high pressure the law of partial pressures cannot be applied

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