Combustion of Purified Biogas after Carbon Dioxide Absorption Using Sodium Hydroxide

Biogas is an alternative clean energy that can replace the utilization of LPG, fossil fuel for cooking. But many reports said that biogas is mixture composition which carbon dioxide composition must be removed. This study aims to investigate the combustion performance of purified biogas after sodium hydroxide absorption. Carbon dioxide removal has been conducted by absorption method. There are 4 type concentration of sodium hydroxide (NaOH) that used in this study 5, 15, 25 and 35. After carbon dioxide absorption using 5, 15, 25, 35 methane content of biogas increased. The increase in methane affected on the increase in calorific value. Purified biogas after absorption using 5, 15, 25 and 35 of sodium hydroxide increased 187.91, 225.42, 227.91, and 243.82 kJ respectively. © Published under licence by IOP Publishing Ltd.