Design philosophy regarding the pressure of Tower T04
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Our plant uses a five-tower process for low-methane washing. The pressure in Tower T04 is set at 0.25 MPa; this is done, first and foremost, to meet the requirements of the downstream Claus process. This is easy to understand. 2. Under normal conditions, low pressure and high temperature are favorable for regeneration. The reason why energy can still be saved under such conditions is as follows: with the total pressure constant, the top temperature constant, the corresponding saturated vapor pressure constant, and the inert gas content constant, it can be understood that the partial pressure of the inert gases in the gas phase composition decreases, which facilitates the removal of H2S and CO2 from methanol. As a result, less steam is needed for regeneration I would like to ask fellow sailors if you have any different opinions?
There is such a claim, but what do you mean by inert gases? What comes out of T104 is mainly H2S and CO2; so how can the so-called inert gases be removed?
Inert gases refer to acidic gases such as H2S and CO2