E nergy consumption increasing affected reduce natural resources\'s storage from earth. Natural Gas is alternative resource rarely used. This is because the storage for Natural Gas. One of storage for natural gas is CNG (compressed natural gas) high pressure 300 bar.Adsorption-desorption process is carried out in laboratory cooling techniques, University of Indonesia. The study was conducted by using activated carbon adsorbent and adsorbate using methane gas. While doing this research, the first thing to do is perform a leak test on the tube vessel. After the tube vessel is not leaking, then the adsorption desorption process can be carried out. The next step is degassing. Degassing function is to clean the activated carbon. After performing degassing, then the adsorption process. In the adsorption process, the methane gas given the pressure vessel at a pressure of 30 bar. In this process when the gas inlet and the pressure increases, the temperature in the pressure vessel rises, it indicates that the adsorption process is going on. if the thermocouple temperature has reached its highest point, and has decreased the adsorption process has been completed. The next step is to wait for the thermocouple back to normal temperature (25°C). After that, the desorption process can be carried out. When the desorption process is done, thermocouple temperature decreased. At the time of thermocouple temperature drops, the pressure in the pressure vessel also fell. Desorption process can be said to be complete when the thermocouple temperature back up the original seperte (25°C). After adsorption desorption process of the first cycle is completed, it can be done adsorption desorption to adsorption desorption experiment the second and third ..After doing three times the adsorption-desorption process, it can be concluded that there is a deterioration in the mass of methane gas that can be in adsorption, to increase the yield of adsorption-desorption degassing process needs to be done, and the use of sheaths can improve.