Pengaruh Variasi Bentuk Adsorben Karbon Aktif dan Scale-up Kolom Terhadap Kinerja Adsorpsi CO2 Dalam Biogas

Biogas as a renewable energy source is now starting to be considered an alternative replace BBM and CNG. from cow dung generally has concentration of 50-70% CH4 substance that can used fuel, accompanied by 25-50% CO2, 0.3-3% N2, 1-5% H2, H2S. The presence accompanying substances, especially which no calorific value (cannot burned), reduce the overall biogas. One way separate CO2 gas adsorption. However, at small column capacity, adsorbent often saturated quickly after being operated for certain time. get around this make into more compact form, such pellets. By combining granular pellet activated carbon, study wanted identify effect variations produce best biogas composition compare its performance when scaled up. results showed mixture A (70% carbon 30% pellet) produced biogas, namely 83.1% in initial 89.3% scale up column, with impurities removed amount other gases. absorption form adsorption effectiveness each variation 100% effectiveness. breakthrough curve shows C (30% 70% gave highest resistance 7 minutes on 10 column. volume was adsorbed, biogas/column height, total remove solute were indicated 72 Liters, 180 Liters/m, 8,208 Liters 159 212 respectively. 21,942 Scale significant impact mixed increase adsorbed 2.75x, volume/height increases 1.47x, 3.29x.
 Keywords: adsorption, adsorbent, pellet,