This paper presents a new non-isothermal chromatographic process for the continuous separation of a multicomponent gaseous mixture. The process involves continuous cyclic operation of temperature swing adsorption (TSA) process in a single column by moving a properly controlled temperature profile along the column. This process can be considered as a combination of TSA and gas chromatography. The usefulness of proposed process was demonstrated by experiments with a laboratory-scale column for separation of dilute ethylene and carbon dioxide in nitrogen carrier gas. The experimental results were well explained by numerical simulations.