Thermal swing adsorption process to minimize the thermal pulse during the feed step

At the start of the feed step, thermal swing adsorption (TSA) processes gen erate a thermal pulse. This thermal pulse is generated by insufficient cool ing of the bed during the regeneration step and bed repressurization follow ing the cooling step. For some integrated processes, such as cryogenic air separation units (ASU), the thermal pulse generated by the TSA PPU (pre-pur ification unit) may not be acceptable. Three options are outlined to minimi ze the magnitude of the thermal pulse generated by the adsorbent bed during the feed step before the feed enters the equipment downstream of the adsor ption process. A mathematical model to simulate this process and results fr om computer simulations are presented. Various process options are compared . Experimental data is compared against the model predictions.