Kajian Proses Otoksidasi Katalitik Gliserol menjadi Asam Format

Abstract

Hydrogen is a compound that has an important role in chemical industries. However, the flammable and explosive nature of hydrogen represent a serious risk in the event of gas leak. Formic acid has been reported as potential hydrogen carrier, so that formic acid synthesis method that is economically feasible and environmentally friendly needs to be known. Synthesis of formic acid is done by oxidizing glycerol using air as the oxidator (autoxidation) and Copper Formate as the catalyst. In the preliminary experiment, glycerol is oxidized at various reaction time (1, 2 ,3, 4 hours) at 80 ^oC and 1 %w/w catalyst concentration to get the most favorable reaction time which will be used in the main experiment. In the main experiment, glycerol is oxidized at various temperature (40^oC, 60^oC, 80^oC) and various catalyst concentration (1 and 2 %w/w). The formic acid produced will be analyzed by acid-base titration using sodium hydroxide (NaOH). The residual glycerol will be analyzed by titration using periodic acid. The results show that the increase of reaction time, temperature and catalyst concentration will increase glycerol conversion and formic acid yield. The maximum glycerol conversion is 53,97 % and the maximum formic acid yield (33 %) is obtained in 3 hours at 80^oC and 2 %w/w.