Characteristic and mercury adsorption of activated carbon produced by CO2
of chicken waste |
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Authors: | HUANG Yaji JIN Baosheng ZHONG Zhaoping ZHONG Wenqi and XIAO Rui |
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Institution: | Education Ministry Key Laboratory on Clean Coal Power Generation and Combustion Technology,Southeast University,Nanjing 210096,China |
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Abstract: | Preparation of activated carbon from chicken waste is a promising way to produce a useful adsorbent for Hg removal.A three-stage activation process (drying at 200℃,pyrolysis in N2 atmosphere,followed by CO2 activation) was used for the production of activated samples.The effects of carbonization temperature (400-600 ℃),activation temperature (700-900 ℃),and activation time (1-2.5 h) on the physicochemieal properties (weight-loss and BET surface) of the prepared carbon were investigated.Adsorptive removal of mercury from real flue gas onto activated carbon has been studied.The activated carbon from chicken waste has the same mercury capacity as commercial activated carbon (Darco LH) (HgV:38.7% vs.53.5%,HgO:50.5% vs.68.8%),although its surface area is around 10 times smaller,89.5 m2/g vs.862 m2/g.The low cost activated carbon can be produced from chicken waste,and the procedure is suitable. |
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Keywords: | activated carbon chicken waste mercury adsorption CO2 |
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