pdf/i-martynia-annua-i-and-balanite-endocarp-activated-carbons-3jgxukyifc.pdf

Martynia annua and Balanite Endocarp Activated Carbons to Remove Hg2+ and Pb2+ in Prepared Solutions Using Fixed-Bed Adsorption Column

A physical and chemical characterization of three Colombian agricultural biomass residues was carried out to identify promising feedstocks for thermochemical energy production. The three chosen were sugar cane bagasse (SCB), rice husk (RH), and palm kernel shell (PKS). Results showed that SCB, has high volatile material (87.41 wt % daf), lignocellulosic composition high in hemicellulose (29.68 wt % daf) and cellulose (39.81 wt. daf), high alkali index (4.07), and soft morphology; these characteristics make it a good candidate for fast pyrolysis to produce bio-oil and gas. The RH, despite having a lignocellulosic composition similar to SCB, has slightly less volatile matter than SCB (75.73 wt % daf), a soft morphological structure, and high ash content (19.33 wt %) mainly of noncatalytic species, all of which make RH unattractive for pyrolysis; however, its fixed carbon content makes it very interesting for combustion and gasification processes. On the other hand, the PKS is the biomass with the highest co...

Characterization of Colombian Agroindustrial Biomass Residues as Energy Resources

Activated carbons were prepared from Palm kernel shells. Carbonization temperature was 6000C, at a residence time of 5 min for each process. Chemical activation was done by heating a mixture of carbonized material and the activating agents at a temperature of 70 0 C to form a paste, followed by subsequent cooling and using the active carbon to purify effluents from a Bottling Company. NaCl, KOH, H2SO4 and H3PO4 were used as the activating agents at 1M and 2M and 710 μm particle size. The activated carbon samples produced were found to posses properties within the limits of commercial activated carbons. Bottlimg company effluent was purified and the results showed that carbonized materials activated with 2M H2SO4 had the best adsorption characteristics. These properties include 1.12% moisture content, 2.50 % ash content, 57.00 % yield of activated carbon, 93.65 % fixed carbon, 2.73 % volatile content, 0.97 g/cm3 bulk density and 0.69 cm3 pore volume. Keywords: Active carbon, Palm kernel shell, Effluent, Purification Nigerian Journal of Technological Research

Preparation and characterization of active carbon using palm kernel shells for industrial effluent purification

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Preparation and characterization of active carbon using palm kernel shells for industrial effluent purification