Synthesis and characterization of activated carbon from asphalt |
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Authors: | Munther Issa Kandah Reyad Shawabkeh |
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Institution: | a Department of Chemical Engineering, Jordan University of Science and Technology, Jordan b Department of Chemical Engineering, Mutah University, Jordan |
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Abstract: | Asphalt (cheap and available in huge amount in Jordan) was converted into activated carbon powder by chemical treatment with sulphuric and nitric acids at 450 °C. The final product was characterized and found effective as adsorbent material. Its cation exchange capacity reaches 191.2 meq/100-g carbons when treated with 30 wt% acid/asphalt ratio without airflow rate injection and 208 meq/100-g carbons when 6.5 ml air/min was injected into the surface of the asphalt during activation at the same acid/asphalt weight ratio of 30 and temperature 450 °C. The zero point of charge for this product was found to be stable at pH value around 3 in the range of initial pH between 3 and 10. |
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Keywords: | 68 43 Mn |
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