University Links: Home Page | Site Map
Covenant University Repository


Kamalu, Ikenna C. and Osoka, E.C. and Nwakaudu, M.S. (2012) BLEACHING OF CRUDE PALM KERNEL OIL USING ACTIVATED SNAIL SHELL. Research Journal in Engineering and Applied Sciences, 1 (5). pp. 323-326. ISSN 2276-8467

[img] PDF
Download (62kB)


The optimal bleaching parameters (temperature, contact time and adsorbent-to-crude PKO ratio) were determined for the decolouration of PKO using activated snail shell. different masses(1g, 2g and 3g) of activated pulverized snail shell were contacted with crude PKO at temperatures of 100OC, 120OC, 140OC, 160OC, 180OC and 200OC each for various contact times of 15min, 30min, 45min using a constant volume (20ml) of crude PKO sample in each case. The transmittance was measured using a spectrophotometer and the opacity and corresponding percentage colour reduction obtained in each case. The decolourizing effect of activated snail shell increased non-linearly with temperature. For the 20ml of crude PKO sample, 2g of activated snail gave the highest decolourization of 99.24% colour reduction at a temperature of 200OC and contact time of 45min. It is recommended to decolourise crude PKO using a ratio of 2:20 (g/ml) of activated snail shell to crude PKO at a temperature range of 180OC for 30min. This study will aid in the use of snail shell (a renewable resource) as an adsorbent in the bleaching of PKO in place of clay that is not renewable

Item Type: Article
Uncontrolled Keywords: Snail Shell, Pulverised, Bleaching, Activated, Palm Kernel Oil.
Subjects: T Technology > T Technology (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 08 Feb 2017 14:12
Last Modified: 08 Feb 2017 14:12

Actions (login required)

View Item View Item