The capture and concentration of CO2 from a dry ambient air stream by temperature vacuum swing adsorption (TVSA) have been experimentally demonstrated on a small scale by using a single bed system packed with 20 g of zeolite X. Initially seven different commercially available type X zeolites were investigated, and one of them was chosen for a more comprehensive study. Breakthrough experiments were carried out by perturbing the He saturated bed with compressed ambient air with CO2 of around 410-440 ppm. In the process studied, a basic four-step TVSA cycle was investigated first, comprising the following steps: pressurization, adsorption, blowdown, and desorption. Four different regeneration temperatures were tested along with four different gas space velocities. With this cycle configuration, CO2 was concentrated to 95% from 400 ppm with total capture fractions as high as 81%. The energy consumption per ton of CO2 captured in the system is discussed for the different process configurations. The results from this study are discussed on how to improve the possibility of using low Si/Al ratio faujasite-structured zeolites in direct air capture of CO2.