Comparisons of temperature profile, power consumption profile and desorption rate of adsorbed CO2/CH4 for both methods are shown in Fig. 5. For microwave heating, power consumption fluctuated between 0–20 W and stabilized around 12 W while temperature stabilized at 190 1C. For conductive heating power consumption fluctuated between 0and 101 W and stabilized around 44 W. Desorption rate for conductive heating is slower than for microwave heating and also net power requirement is higher. Desorption rate during microwave heating reached a maximum of 100 mL/min in the 1st minute then decreased reaching close to zero at the 8th minute. During conductive heating, the desorption rate
reached a maximum of 26 mL/min in the 7th minute, remained constant up to the 10th minute and then decreased and stabilized at 1 mL/min at 22nd minute of heating time. Fig. 5 illustrates that microwave heating is more efficient and faster than conductive heating in terms of heating rate, net energy consumption and gas desorption rate for adsorptive separation of CO2/CH4