Full-temperature-range simulated rotating moving bed pressure swing adsorption process for extracting H2 and NH3 from synthetic ammonia purge gas

The invention discloses a full-temperature-range simulated rotating moving bed pressure swing adsorption (FTrSRMPSA) process for extracting H2 and NH3 from synthetic ammonia purge gas. The middle-high temperature pressure swing adsorption ammonia concentration system and the middle gas pressure swing adsorption hydrogen extraction system are formed by a plurality of axial flow fixed bed adsorption towers and a rotating speed mechanism, wherein the axial flow fixed bed adsorption towers are arranged in the center of an upper multi-channel rotating valve and a lower multi-channel rotating valve, and are arranged on a circular ring-shaped rotating tray around the multi-channel rotating valve; gas flowing through a rotary valve channel, pipelines at the inlet and outlet ends of the adsorption towers and the adsorption bed layers can complete mass transfer of respective adsorption and desorption steps at the inlet and outlet positions of each adsorption tower and at each adsorption bed layer while rotating, so tha