Pemanfaatan Limbah Tandan Kosong Kelapa Sawit Sebagai Bahan Baku Pulping dengan Penambahan Natrium Hidroksida (NaOH) pada Alat Digester (Utilization of Oil Palm Empty Fruit Bunches Waste as Raw Material Pulping with Addition of Sodium Hydroxide (NaOH) by Using a Digester)

Abstract

Digester is a vessel where the cooking process or reaction delignification of wood chips takes place. With the addition of a solution of the chemical cookers, heat, and pressure of the lignin will be dissolved and converted into pulp wood chips. In designing this tool have dimensions digester include: tank diameter: 35 cm, height tank: 50 cm, plate thickness: 0.12 cm, Impeller diameter: 23.07 centimeters, stirrer speed: 2800 rpm and a capacity of 20 liters. Pulping process can use non-wood raw materials, one of which is waste Oil Palm Empty Fruit Bunch (EFB). The content of 38.76% TKKS composed of cellulose, hemicellulose, lignin 26.69% and 22.23%. Pulping aims to get as much fiber as possible as indicated by the value of high yield with a minimum lignin content. The purpose of this experiment is to determine the optimum conditions in the pulping digester tool of TKKS. Pulping process stages of TKKS namely: (1) dry TKKS cut, (2) cooking in the digester, (3) pulp is filtered, and (4) pulp was analyzed. Variables that most good result is the optimum state at a temperature of 100oC and cooking time 90 minutes. Results of analysis obtained 12.56% yield. Email : sitirachmawatiwi@gmail.com