سال انتشار: ۱۳۸۷
محل انتشار: دومین کنگره بین المللی علوم و فناوری نانو
تعداد صفحات: ۲
m Mollashahi – Department of chemical engineerin,University of shahid bahonar.P.O.Box76169-133.kerman,iran
h Hashemipour Rafsanjani – Department of chemical engineering,University of shahid bahonar.P.O.Box76169-133.kerman
Natural gas is a cheap،abundant and clean fuel. liquefied natural gas(LNG) and compressed natural gas (CNG) have already been commercialized , while studies of adsorbed natural gas (ANG) and the natural gas hydrate(NGH) have been carried out aiming to decrease the fuel cost and increase in safety. NGH is solid and has theoretical volumetric capacity 164 or 174 V/V, assuming complete filling of water cages within the clathrate structure.however, the formation condition of NGH is rigorous, and its formation rate is low,therefore,has not been commercial technique .adsorption was considered a measure to enhance natural gas storage and many efforts have been dedicated to creating novel carriers for it. There are manytypes of porous media used to adsorb natural gas such as activated carbon, zeolite, silica gel, molecular sieves,etc. recently carbon nanotubes have become a popular porous media because of their exceptional properties such as uniform porosity, high tensile strength, relative inertness, and electrical conductivity. Possibility of storing of methane with in wet MWCNT is examined and a compare between methane storage with in dry and wet MWCNT has been done and observed that the sorption behavior of methane in wet MWCNT is quite different and five times higher uptake capacity was observed in the wet sample due to the formation of methane hydrates.However, MWCNTs whether in dry or wet state,are unlikely to be used as an energy carrier due to its limited surface area and pore volume.