Abstract:
There is growing global interest on bio-methane as
a vehicular fuel and Europe Union (EU) has stated that this as a
best well-to-wheel fuel. Commercialization of bio-methane under
atmospheric conditions is limited due to its requirement of higher
storage capacity. Compressed bio-methane systems have been
currently commercialized in Europe in order to increase its low
energy density however the process requires higher capital and
maintenance costs. Thus, adsorbed bio-methane is suggested as a
better alternative to store methane under low pressure conditions
& activated carbon (AC) has shown promise as a methane
adsorbent. This study is based on identifying the potential
absorptivity of bio-methane into commercially available AC in
Sri Lanka. The paper presents the pathway envisage in this task.
Two types of commercial AC samples as granular & pelletize
forms have been used from supplier HAYCARB for the analysis.
In this paper, characterization data from the principals is used to
investigate the methane uptake potential into commercial AC.
Further, the study has been continued in evaluating several
developed correlations in literature on linear behaviour of
micropore volume of AC to methane uptake & concluded that the
linear parameters of micropore volume to methane uptake would
vary according to AC properties. Thus a correlation for local AC
is important to be developed. Hence, an experimental setup is
developed to carry out detailed studies on bio-methane
adsorption on commercial AC available in Sri Lanka.
