The Desorption Canister is specially made for field work. To hold the different coal case of 48/56/68/102 diameter. First to Coal core an put into the Stainless Steel preformatted Cylinder. The Cylinder diameter is very slightly more than coal core. The Cylinder put in to the main Canister for heating upto 99.9°C. The Canister is singly locket through cam lock with rubber gasket. To hold the pressure up to 30 Kg/cm2 shown through a pressure gauge and Sluice Valve attached for control to gas. The main Cylinder are heated as per requirement which is controlled by Digital Controller (Very precision). Temperature up to 99.9°C. The whole system made of Stainless Steel 304, the system is very low wattage.