How is the water vapor ratio in CO conversion determined?
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How is the water vapor ratio in CO conversion determined?
The pressure of the water gas is 3.40 MPa (gauge pressure), its temperature is 214.8°C, and the flow rate of the wet water gas is 180,000 Nm3/h. The water vapor ratio is as follows: By referring to the table showing the relationship between saturation temperature and pressure of water vapor, it can be determined that at 214.8°C, the saturated vapor pressure of water vapor is 2.0 MPa (gauge pressure). Vapor ratio = partial pressure of saturated water vapor / partial pressure of water gas = (2.0 + 0.1) / (3.4 – 2.0 + 0.1) = 1.4
So how do you know then how much steam to add?
The amount of steam required for the reaction is determined based on the final temperature of the shift converter and the degree of conversion; by subtracting the moisture brought in at the inlet of the shift converter, the amount of steam that needs to be supplied externally is obtained
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