Pengaruh Waktu Dan Katalis Terhadap Pentosa Dan Furfural Pada Hidrolisis Batang Sawit Bebas Pati

Abstract

Oil palm trunks are agricultural solid waste that has not been used optimally. Oil palm trunks have a high starch content so that they can be used as raw materials for making bioplastics, dextrins and adhesives. The experiment of hydrolisys of starch-free oil palm trunks was intended to study the effect of time and catalyst concentration on the obtained pentoses and furfurals. Hydrolisys of starch-free palm trunks was carried out in batches on a laboratory scale. The experimental variables studied were formic acid concentration 85% by weight, catalyst concentration (0; 0.05; 0.1; 0.15; 0.2% by weight), reaction time (0; 5; 10; 15; 20; 30 . ; 45; 60; 90; 120; 180 minutes) and a solid-to-liquid ratio of 15/1. The experimental results showed that the time and concentration of the catalyst greatly influenced the pentose and furfural in the process of hydrolisys of starch-free oil palm trunks. The levels of pentose and furfural dissolved in the used cooking liquid in this experiment were pentose (0.31-1.37 grams/l) and furfural (1.45-2.95 grams) with the percentage of hemicellulose recovery ranging from (28-57% ).
Keywords: palm trunk, starch-free, delignification, organosolv, formic acid