Part of #Synthesis of carbon Nano-Adsorbent for Guard Bed in ANG Vehicles# :
Publishing year : 2013
Conference : Third International Conference on Modern Approaches to Energy Conservation
Number of pages : 10
Abstract: Natural gas is considered as a major energy resource. This type of fuel is clean and inexpensive, so in recent years has been kept in constant attention to use in transport field as a fuel. Natural gas is mainly composed of methane, but it also contains some heavier hydrocarbons like ethane that gradually occupy the micro pore volume, which should be available for methane fraction in an ANG tank in a car. Consequently, this issue poses an aserious challenge in the storage system and brings the net capacity of storage down. Purpose is high adsorption of ethane in the guard bed and high adsorption of methane in the adsorption tank. To solve this problem, heavier hydrocarbons are clearly separated in the guarded before the natural gas enters the storage tank. Then reunify with the gas fractions during the discharge cycle and use in automobile. In this study, six types of activated carbon were prepared as guard-bed adsorbents, which the activation temperature and mesh size of walnut as raw material were studies in the synthesis process. In this research, the main idea is the adsorption and separation of ethane from natural gas. The sample has a significant ethane / methane adsorption ratio of 3.4165. The surface area is 1770.6069 m2 / gr, and the mean pore size is 3.41888 nm for this optimum activated carbon, which can be an acceptable adsorbent for use in guard beds.