Waste gas methanol absorption
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The exhaust gas emitted by the device contains 25% (V) methanol, along with small amounts of H2 and CH4, and 36% CO2. 45 Kpa(G), 45 degrees Celsius, 1300 standard cubic feet per hour; it is required that after absorption by water, the methanol concentration at the top of the tower be 1% (V) and 65% (V) at the bottom of the tower. Simulated direct absorption cannot be achieved; is there any method that can achieve it directly?
Have you tried simulating direct absorption to see if it’s not achievable?
How about trying to change the pressure, temperature, and tower height? ? What about changing the filler type?
Is it an exhaust gas treatment project? I’ll take care of it for you.
Because the feed pressure is too low and does not meet the requirement; increasing the pressure will help achieve it
Why, and how is that usually handled?
The feed pressure can be adjusted to 4 kilograms of gauge pressure to achieve this, but the feed conditions specified by the client are only 45 KPa gauge pressure; it’s not possible to raise the pressure that high even using a fan
Then it has to go into the compressor! ! ! Increasing the tower pressure also raises the cost of the equipment! ! ! Not very favorable. What is the substance of the remaining 39% of gas? You can try lowering the temperature to cause the methanol vapor to condense!