The "zeolite-water" pair adsorption process has been extensively studied for its application in cooling system. This paper presents a compound zeolite-active carbon adsorbent (CZACA) which enhances the heat transfer in the adsorbent bed by absorbing solar energy directly and decreases the desorption cycle time in a solar cooling system. Experimental study of a special solar cooling tube using this adsorbent is discussed. The effects of some operating parameters on the system performance are also evaluated.