Proportion of water vapor at the outlet of the carbon scrubber tower
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In conventional water-coal slurry gasification, the temperature of the process gas at the outlet of the carbon scrubber is 235 degrees; after passing through several boiling vessels, this temperature drops to 160 degrees. I checked that the saturated vapor pressure of water vapor at around 235 degrees is 3.2 MPa, while it is 0.6 MPa at 160 degrees; the pressure at the outlet of the vaporization furnace was 5.8 MPa at that time. I would like to ask what is the typical water-to-vapor ratio at the outlet of a carbon scrubber tower? And why does so much water vapor condense, yet the pressure of the gas in the system behind the boiling pot doesn’t decrease much?
The water vapor ratio is generally 1.4:1. As for why so much water condenses, you can check the saturated vapor pressure of water to see if it has reached the dew point
However, when the flow meter indicated moisture, the flow rate was 340,000 (at 240 degrees), while when it turned into dry gas, the flow rate was only 100,000 (at 32 degrees).
Based on the condensed water, the volume is 130 cubic units; when converted, this corresponds to a volume of nearly 160,000 units, which means that the ratio of water to vapor is approximately 1.6.