PSA hydrogen production issue
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The temperature of the feed gas needs to be controlled within a certain range; why isn’t it true that the lower the temperature, the better, since lower temperatures facilitate better adsorption?
The adsorption capacity is not such that the lower the temperature, the better; at low temperatures, both the adsorption and desorption rates are slower, the time required to reach dynamic adsorption equilibrium may increase, and the adsorption efficiency may also decline. Additionally, the energy consumption for specialized cooling increases; if it can be done at room temperature, there’s no need for cooling. It is recommended to read \"Zeolite Molecular Sieves\" written by the Dalian Institute of Physics and Chemistry, and \"Molecular Sieves\" written by Shanghai Reagent Factory No. 5.
By the way, it is recommended that PSA-related questions be discussed on the Air Separation/Membrane/PSA forum.
The adsorbent has poor adsorption capacity at low temperatures.
I agree with what was said on the second floor: the adsorption capacity is not necessarily better at lower temperatures