Medium-temperature pressure swing adsorption separation method for hydrogen-doped hydrogen in natural gas pipeline network

The invention discloses a medium-temperature pressure swing adsorption separation method for hydrogen-doped hydrogen in a natural gas pipeline network, and belongs to the technical field of industrial gas separation. According to the method, a plurality of adsorption towers are arranged in parallel, the towers are filled with hydrogen storage alloy adsorbents, the temperature of the adsorption towers is controlled to be 60-120 DEG C, and each adsorption tower periodically and circularly runs an adsorption step, a pressure drop equalizing step and an amp clockwise discharge step; according to the method, adsorption towers are coordinated through sequential control, and the adsorption towers enter the adsorption step in turn, so that high-efficiency recovery of hydrogen in hydrogen-doped natural gas is completed jointly. The hydrogen and natural gas can be efficiently and rapidly separated through the medium-temperature multi-tower pressure swing adsorption device on the basis of the hydrogen storage alloy adso