Open AccessPENGARUH SUHU DAN WAKTU AKTIVASI TERHADAP KAPASITAS ADSORPSI KOKAS MINYAK BUMI
Author(s) -
Rayandra Asyhar,
Nofrizal Jon
Publication year - 2015
Publication title -
jurnal riset kimia
Language(s) - Uncategorized
Resource type - Journals
eISSN - 2476-8960
pISSN - 1978-628X
DOI - 10.25077/jrk.v1i2.64
Subject(s) - chemistry , coke , freundlich equation , adsorption , petroleum coke , phenol , langmuir , nuclear chemistry , chromatography , organic chemistry
ABSTRACT The effect of activation temperature and duration on the activity of petroleum coke has been investigated. A mixture of green coke and KOH (1:1) was heated in an oven furnace at 450°C for 1 h, then continued to activation process at 450-900°C for 1-3 h. The product mixture was immersed in a solution of 10% H2SO4 before being washed with deionized water to neutral pH. After being dried, activated cokes were tested with a solution of phenol, 4-nitrophenol, 2,4-dinitrophenol or methylen blue. Experimental data showed that the activity of coke imcreased with temperature and time. The effective condition of the activation process is at temperatures higher than 750°C and activation time of longer than 1,5 h. Adsorptive behavior of phenolics dan metylene blue onto activated coke agreed with Langmuir rather than with Freundlich isotherm. Keywords: temperature effect, activation time, petroleum coke, adsorption capacity, phenolics, methylen blue.