PREPARATION OF ACTIVATED CARBON PRODUCTION FROM OIL PALM EMPTY FRUIT BUNCH AND ITS APPLICATION
Keywords:activated carbon, oil palm empty fruit bunch, biomass, response surface methodology
Response surface methodology (RSM) with central composite design (CCD) was employed to optimize the activated carbon production from oil palm empty fruit bunch (OPEFB). First, carbonization was RSM-designed by carrying out in CO2 with a focus on the effects of carbonization temperature and carbonization time. The maximum I2 adsorption of 373.41 mg/g with surface area (BET) of 1.09 m2/g was presented by bio-char with carbonization condition of 450 °C for 90 min. Subsequently, the activation process was RSM-designed by H3PO4 activation. OPEFB bio-char was mixed with 85% (w/v) H3PO4 at bio-char/H3PO4 ratio (1:1-1:3 (w/v), activation temperature (400-600 ºC) and activation time (60-180 min). The maximum I2 adsorption of 841.32 mg/g and BET of 900.02 m2/g was presented by activated carbon in the activation condition of bio-char/H3PO4 ratio 1:2 at 668 °C for 120 min. In addition, the selected OPEFB-activated carbon was applied for furfural and 5-Hydroxymethyl furfural (5-HMF) adsorptions from the simulated solutions and it could remove of 139.94 and 18.79 mg/g, respectively.
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