Effect of Activation by Alkaline Solution on Properties of Activated Carbon from Rubber Wood
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Activated Carbon, Rubber Wood, KOH, NaOH, Activationบทคัดย่อ
This research is a study of the effect of activation by alkaline solution on the properties of activated carbon from rubber wood. The experiment included both carbonization and activation. The variables studied were a temperature range of 350-500°C and carbonized time (45, 60, 90, and 120 minutes) in the carbonization step. A suitable carbonization condition was at a temperature 400°C for 45 minutes with 27.51 % yield, 70.46 % fixed carbon, 25.90 % volatile matters and 2.32 % ash. Rubber wood char was activated by alkaline solution: KOH and NaOH. The variables were temperature, activation time and size of rubber wood char including the weight ratio of char per alkaline in the activation step. The experimental results were found to be that the suitable conditions for alkaline activation using both KOH and NaOH as activating agent was 700°C for 3 hours with rubber wood char size, 0.60-1.18 mm. Activated carbon prepared from KOH with a 1:1 ratio of char per alkaline gave higher quality than NaOH because stronger alkaline of NaOH developed larger pore sizes. The activated carbon obtained by KOH as an activating agent was 48% yield, 0.114 g/cm3 bulk density, 5.24% ash, iodine number 1069 mg/g, methylene blue number 202 mg/g and BET surface are 943 m2/g whereas NaOH gave lowers values of these properties.
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American Standard of Testing Material. 1993. Standard practice for proximate analysis of coal and coke. Annual book of ASTM standards D 3172-89. Philadelphia, ASTM : 288.
American Standard of Testing Material. 1993. Standard test method for moisture in the analysis sample of coal and coke. Annual book of ASTM standard D 3173-87. Philadelphia, ASTM: 289-290.
American Standard of Testing Material. 1993. Standard test method for ash in the analysis sample of coal and coke from coal. Annual book of ASTM standard D 3174-93. Philadelphia, ASTM : 291-294.
(Revised version accepted August 6, 2002)
American Standard of Testing Material. 1993. Standard test method for volatile matters in the analysis sample of coal and coke. Annual book of ASTM standard D 3175-89a. Philadelphia, ASTM : 295-297.
Arriagada, R., Gercia, R., and Reyes, P. 1994. Steam and carbon dioxide activation of Eucalyptus globulus charcoal. J. Chem. Tech. Biotechnol. 60 : 427-345.
Boonkri, S. 2000. Mechanical properties of rubber wood composites containing poly(styrene-co-acrylonitril) and poly(methylmethacrylate-co-acrylonitrile). Master’s Thesis, Program of Petrochemistry and Polymer science, Faculty of Science, Chulalongkorn University.
Lozano-Castallo, D. 2001. Prerubbertion activated carbon form Spanish anthracite by KOH activation. Carbon. 39 : 741-749.
Lozano-Castallo, D. 2001. Prerubbertion activated carbon form Spanish anthracite by NaOH activation. Carbon. 39 : 751-759.
Ninlanon, N. 1994. Production of activated carbon from Mangrove wood. Master’s Thesis, Department of Chemical Technology, Faculty of Science, Chulalongkorn University.
Suravattanasaku, T. 1998. Production of activated carbon from palm-oil shell by pyrolysis and steam activation in a fixed bed reactor. Master’s Thesis, Department of Petrochemical and Polymer Science, Faculty of Science, Chulalongkorn University.
Tuncharoensap, T. 2001. Comparison Properties of Activated Carbon Prepared from Lignite by Chemical and Physical Activation. Master’s Thesis, Department of Chemical Technology, Faculty of Science, Chulalongkorn University.
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ลิขสิทธิ์ (c) 2002 The Journal of Metals, Materials and Minerals (JMMM)
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