“…[16] Many research works on methane adsorption in carbonbased adsorbentsh ave been published,a nd al arge number of these works include high-pressure methane adsorption. Thel iterature data on methane adsorption at high pressure is limited to around 25 to 60 bar [17][18][19][20][21][22][23][24][25] and occasionallyu pt o 140-150 bars for coal-or shell-based low-surface-area materials [26,27] that are essentially sufficient for ANG technology. However, from as cientific point of view,t here are other interests in studying methane adsorption at extremely high pressures.F or example,a tv ery high pressure,m ethanec ould occupylarger pores and demonstrate unusual enthalpy of adsorption values.I ns pecific needs,f or example,f or long driving ranges or small tank volumes,h igh-pressure ANG tanks can provide higherm ethanes torage in al ess hazardous environmentc omparedt ocompressed bulk storage.…”