| dc.description.abstract | Carbon dioxide (CO2) is one of the components of fuel gas and the product of
combustion, and is also one of the primary greenhouse gases, contributing to the
increase of the earth’s surface temperature and producing long term climate changes.
Much attention has been paid to the global warming effect caused by the excessive
emission of carbon dioxide. Adsorption with solid adsorbents (Activated Carbon) is one
of the most promising options due to its low energy consumption, low equipment costs,
and easiness for application. AC has been established as effective adsorbents for the
removal of a wide variety of pollutants from gaseous environment due to its
exceptionally high surface areas, well-developed internal microporosity structure as
well as the presence of a wide spectrum of surface functional groups. This study was
carried out to increase the efficiency of industrial AC adsorption of CO2. The AC is
modified with the PEI and ammonia solution. Fixed-bed adsorption with virgin, PEI and
ammonia impregnated AC as a media of removal of CO2 gases were conducted. CO2
flowrate was 10, 20, 30 ml/min with 1 hour adsorption period. Adsorption capacity
follow by PEI/AC > 1.6 M of Ammonia/AC > virgin AC. 20 ml/min flowrate of CO2
showed highest adsorption capacities for all treated media. | en_US |
