Seen by the
graph, at the initial heating stage, adsorption remains to be constant, desorption is zero, all heat inputed is used to the
bed’s temperature raising, therefore the adsorption bed temperature rise faster. After 200 seconds of heating, the
adsorption bed began to desorption, the temperature raises slowly due to the requirment of heat. Till to 600 seconds,
the heating ends. Similarly, at the cooling the initial stage, the adsorption amount of the adsorption bed becomes zero,
the exothermic heat of adsorption is zero, all the cold quantity is used to coller the bed, so the adsorption bed
temperature decreased rapidly. After 3-4 minutes of colling, the pressure in the adsorbent bed is closed to the
evaporation pressure, the adsorbent bed begins to adsorb. Due to the adsorption of exothermic adsorption bed
temperature slowed down, cooling after 10 minutes, the adsorption bed temperature drop to the adsorption
temperature.