Carbon letters

  • 제9권3호
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  • Pages.203-209
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  • 2008
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  • 1976-4251(pISSN)
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  • 2233-4998(eISSN)
한국탄소학회 (Korean Carbon Society)
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Steam Activated Carbon Preparation Using HTFBR from Biomass and its Adsorption Characteristics

  • Asirvatham, J. Herbert (Carbon Research and Engineering Laboratory, Chemical Engineering Department, A. C. College of Technology, Anna University) ;
  • Gargieya, Nikhar (Chemical Engineering Department, BITS- PILANI) ;
  • Paradkar, Manali Sunil (Chemical Engineering Department, BITS- PILANI) ;
  • Prakash Kumar, B.G. (Chemical Engineering Department, BITS- PILANI) ;
  • Lima Rose, Miranda (Carbon Research and Engineering Laboratory, Chemical Engineering Department, A. C. College of Technology, Anna University)
  • 투고 : 2008.08.14
  • 심사 : 2008.09.08
  • 발행 : 2008.09.30
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초록

The objective of this work is to study the feasibility of the preparation of the activated carbon (AC) from coconut tree flowers using high temperature fluidized bed reactor (HTFBR). The activating agent used in this work is steam. The reactor was operated at various activation temperature (650, 700, 750, 800 and $850^{\circ}C$) and activation time (30, 60, 120 and 240 min) for the production of AC from coconut tree flowers. Effect of activation time and activation temperature on the quality of the AC preparation was observed. Prepared AC was characterized in-terms of iodine number, methylene blue number, methyl violet number, ethylene glycol mono ethyl ether (EGME) surface area and SEM photographs. The best quality of AC from coconut tree flowers (CFC) was obtained at an activation temperature and time of $850^{\circ}C$ and 1 hr restectively. The effectiveness of carbon prepared from coconut tree flowers in adsorbing crystal violet from aqueous solution has been studied as a function of agitation time, carbon dosage, and pH. The adsorption of crystal violet onto AC followed second order kinetic model. Adsorption data were modeled using both Langmuir and Freundlich classical adsorption isotherms. The adsorption capacity $q_m$ was 277.78 mg/g., equilibrium time was found to be 180 min. This adsorbent from coconut tree flowers was found to be effective for the removal of CV dye.

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