Adsorber, adsorption system and adsorption method

An adsorber, comprising:

• a housing with a cavity therein;
• and a plurality of spaced adsorption bed layers and a plurality of airflow distribution plates, located in the cavity;
• wherein the housing is further provided with a plurality of air inlets and air outlets, the air inlets are configured to respectively inject a gas to be adsorbed and a regeneration gas into the cavity, and the air outlets are configured to discharge an adsorbed gas and a desorbed gas;
• the adsorption bed layers are disposed obliquely;
• an interval between two adjacent adsorption bed layers constitutes a channel, and the channel is communicated with the air inlet and the air outlet, respectively, with a width of the channel gradually decreasing along a direction from the air inlet toward the air outlet;
• and a ratio of the width of the channel to a thickness of the adsorption bed layer is 1:(2-10);
• inlets of the plurality of airflow distribution plates are communicated with the air inlets, and outlets of the airflow distribution plate face the adsorption bed layers;
• and
• the airflow distribution plate has gradually decreasing aperture diameters from the inlets to the outlets.