Because of natural gass environmental advantages over petrol and coal by producing far less emission gases and particulates,demand is expected to grow substantially in the near future.Raw natural gas produced from the wellhead typically consists of many impurities,which need to be treated to meet consumer specifications before pipeline distribution.Among all the impurities to be treated,there is a group of problematic condensable components known as Natural Gas Liquids (NGLs),generally including C2+ hydrocarbons and BTEXs.They are difficult to be separated because of their similar physical and chemical properties.Among all the technologies available for gas separation,separation by adsorption is a very promising chemical engineering method,widely considered because of its reliability,flexibility and low energy consumption.Generally,the performance of any adsorptive separation or purification process is directly determined by the quality of the adsorbent.However,in most of the current adsorption processes for treating hydrocarbon separation,only a handful of generic adsorbents commercially available are being used,which severely limited the future applications of adsorption.Ideally,the adsorbent should be tailored with specific attributes to meet the needs of each specific application.Development of better adsorbents can not only improve the performance of the current commercial processes but also the operating cost [1].