%0 Journal Article %A Megawati and Wahyudi B. Sediawan and Hary Sulistyo and Muslikhin Hidayat %D 2010 %J International Journal of Nutrition and Food Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 41, 2010 %T Pseudo-Homogeneous Kinetic of Dilute-Acid Hydrolysis of Rice Huskfor Ethanol Production: Effect of Sugar Degradation %U https://publications.waset.org/pdf/8140 %V 41 %X Rice husk is a lignocellulosic source that can be converted to ethanol. Three hundreds grams of rice husk was mixed with 1 L of 0.18 N sulfuric acid solutions then was heated in an autoclave. The reaction was expected to be at constant temperature (isothermal), but before that temperature was achieved, reaction has occurred. The first liquid sample was taken at temperature of 140 0C and repeated every 5 minute interval. So the data obtained are in the regions of non-isothermal and isothermal. It was observed that the degradation has significant effects on the ethanol production. The kinetic constants can be expressed by Arrhenius equation with the frequency factors for hydrolysis and sugar degradation of 1.58 x 105 min-1 and 2.29 x 108 L/mole-min, respectively, while the activation energies are 64,350 J/mole and 76,571 J/mole. The highest ethanol concentration from fermentation is 1.13% v/v, attained at 220 0C. %P 299 - 302