By focusing on adsorbent modification, we can enhance CO2 adsorption efficiency and contribute to mitigating its environmental impact. Using modified 13X zeolite with amines can improve its CO2 capture efficiency under non-conventional conditions. SEM, EDS, and BET analyses can evaluate the loading of 2% piperazine onto 13X zeolite. The impregnation process was successful, as evidenced by the detection of nitrogen in the scans. Surface modification resulted in a reduction of pore space, which affected the specific pore volumes and surface areas. We performed hydrodynamic tests in a continuous fluidized bed by varying the pressure. We found that while porosity remained unchanged, increasing the pressure decreased the minimum fluidization velocity. The lowest speeds (umf) for pristine 13X at gauge pressures of 0, 1, 2, and 3 bars were 5.3, 6.6, 7.1, and 7.9 cm/s, respectively. For 13X zeolite modified with piperazine, they were 5.9, 7.2, 7.8, and 8.6 cm/s. After hydrodynamic tests, the employed superficial fliudization velocity was ug = 1.5 umf at bed height = 5 cm and temperature = 25 ᵒC. We assessed the adsorption of CO2 on 13X zeolite through breakthrough curve experiments, determining the adsorption capacity before and after impregnation with piperazine under varying pressure conditions. The results indicated that at a pressure of 3 bars, the adsorption capacity of the modified zeolite was 3.02 mmol/g, compared to 2.85 mmol/g for the unmodified zeolite. This suggests that applying pressure along with piperazine loading enhances CO2 adsorption on the zeolite.