Kinetika Proses Hidrolisis Eceng Gondok (Eichhornia Crassipes) Menggunakan Microwave Reaktor

Abstract

Water hyacinth is a plant that has a high growth rate which has a lignocellulosic structure which can be converted into glucose because it contains 64.51% cellulose. The water hyacinth hydrolysis process uses a reactor with a microwave as a heat source. This study aims to determine the hydrolysis reaction rate constant as a function of power and concentration of sulfuric acid catalyst (H2SO4) from the hydrolysis of water hyacinth to glucose. Several variables in the study were H2SO4 catalyst concentration (0.5 N; 1 N; and 1.5 N), microwave power (600 W and 800 W), and reaction time of 60 minutes. Parameters measured were hydrolyzate temperature, glucose, and cellulose content. The hydrolysis reaction rate constant obtained based on the Arrhenius equation is k = 7.896 x 10-2 e-133.450/T. The best conditions for the hydrolysis of water hyacinth were obtained using 0.5 N H2SO4 and microwave power of 800 W with a final glucose content of 470.235 mg/L.