Adsorption of mercury from simulated flue gas using activated carbon produced from oil palm empty fruit bunch / Noor Hidayu Abdul Rani

Abdul Rani, Noor Hidayu (2015) Adsorption of mercury from simulated flue gas using activated carbon produced from oil palm empty fruit bunch / Noor Hidayu Abdul Rani. Masters thesis, Universiti Teknologi MARA (UiTM).


Mercury pollution is a global crisis facing society today because it is a toxic and hazardous element that can severely threaten human health and environment.Activated carbon as an effective adsorbent in capturing elemental mercury from flue gas was used for this research. In this research, activated carbon was produced from oil palm empty fruit bunch (EFB) using physical (steam) activation method and response surface methodology (RSM) is applied in order to maximize the BET surfacearea. One model has been developed for BET surface area and showed the activation
temperature and activation time are the affecting factors for optimum activated carbon production. The optimum operating conditions were calculated using this model to produce activated carbon with relatively large BET surface area (>500 m2/g). Based
on this optimum condition (765°C, 77 min), the experimental value of BET surface area obtained was 720.0 m2/g, which is in agreement with that predicted from the
model (717.6 m2/g). The activated carbon produced at optimum conditions was used as adsorbent for the mercury removal from simulated flue gas. The effect of flue gas temperature, inlet mercury concentration and types of activated carbon (modified AC
and unmodified AC) were investigated throughout this work. Initially, activated carbon showed a good potential for adsorption of mercury at low temperature.However, as temperature increases from 90°C to 180°C, the efficiency of mercury removal decreased. When the inlet mercury concentration was increased, the mercury removal efficiency was increased. The effect of adsorption efficiency on surface modified activated carbon with potassium iodide (KI) was also studied and showed that the presence of F ion on the surface of activated carbon increased the percentage removal of up to 99% and concluded that 5 wt% of KI is deemed to be the maximum desirable loading.


Item Type: Thesis (Masters)
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Abdul Rani, Noor Hidayu
Subjects: T Technology > TP Chemical technology > Biotechnology
T Technology > TP Chemical technology > Oils, fats, and waxes > Palm oil
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Chemical Engineering
Programme: Master of Science (Chemical Engineering)
Keywords: Mercury pollution; Human health and environment; Carbon
Date: 2015
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