A method for preparing a modified activated carbon adsorbent microwave

The present invention discloses a method for preparing a modified microwave activated carbon adsorbent, the activated carbon as a carrier microwave method, the alkali metal ions K ion supported as an active component is modified using an equivalent amount of ultrasonic impregnation, to obtain a modified activated carbon by microwave adsorbents; method of the present invention is simple, easy to operate, low cost, adsorbent prepared by the process of the present invention, good absorption effect can be obtained a high adsorption equilibrium CO2 / CH4 selection factor.