Vol 6, No 4 (2015) > Mechanical Engineering >

Effect of Methane Gas Flow Rate on Adsorption Capacity and Temperature Distribution of Activated

M Idrus Alhamid, Nasruddin Nasruddin, Senoadi Senoadi, M. Bayu Perdana, Ratiko Ratiko


Abstract: Adsorbed Natural Gas (ANG) is one of the gas
storage methods which specialize in low pressure. This method is more
competitive compared to Compressed Natural Gas (CNG). ANG is based on an
adsorption process that involves adsorbate and adsorbent. This research is
conducted to observe the effects of gas flow-rate on adsorption capacity and
the temperature distribution of adsorbent. The adsorbent is a commercially
activated carbon, and methane gas is the adsorbate. Methane flow rates are 1
standard liter per minute (SLPM) and 20 SLPM. Temperature in the pressure
vessel is maintained at 25°C and the pressure at 3.5 MPa. The result shows that
the adsorption capacity of activated carbon is higher at a lower gas flow rate.
While a higher gas flow rate causes a higher temperature difference in the
adsorption and in desorption process.
Keywords: Adsorbed natural gas; commercial activated carbon; isothermal condition

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