Development of highly microporous activated carbon from the alcoholic beverage industry organic by-products
Development of highly microporous activated carbon from the alcoholic beverage industry organic by-products
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DOI：
10.1016/j.biombioe.2010.08.025
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发表时间：
2011-01-01
影响因子：
6
通讯作者：
Rangel-Mendez, J. R.
中科院分区：
文献类型：
--
作者：
Nieto-Delgado, C.;Terrones, M.;Rangel-Mendez, J. R.
这项工作的目的是利用龙舌兰甘蔗渣，从龙舌兰酒和梅斯卡尔工业的废料，得到一个高商业价值的产品，如活性炭。采用化学活化法，以ZnCl2和H3PO4为活化剂，龙舌兰甘蔗渣为天然碳源，制备活性炭。研究了活化温度（150 ~ 450℃）、活化时间（0 ~ 60 min）和活化剂与前驱体的质量比（0.2 ~ 4）。通过扫描电镜（SEM）、热重分析（TGA）和196℃下的氮气物理吸附对制备的碳材料进行了表征，并对活化剂的回收率进行了评价。我们能够获得高微孔活性炭，微孔体积在0.24至1.20 cm(3)/g之间，表面积在300至2139 m(2)/g之间。这些结果证明了处理龙舌兰酒和梅斯卡尔酒工业废物的可行性，因为这些废物是生产高微孔活性炭的极好前体，可以在低活化温度下在短时间内进行处理，并且有可能回收活化剂。(C) 2010 Elsevier Ltd.版权所有。
This work has the aim to employ the agave bagasse, a waste from Tequila and Mescal industries, to obtain a product of high commercial value such as activated carbon. The activated carbon production methodology was based on a chemical activation, by using ZnCl2 and H3PO4 as activating agent and agave bagasse as a natural source of carbon. The activation temperature (150-450 degrees C), activation time (0-60 min) and weight ratio of activating agent to precursor (0.2-4) were studied. The produced carbon materials were characterized by scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and nitrogen physisorption at 196 degrees C. In addition, the activating agent recovery was evaluated. We were able to obtain highly microporous activated carbons with micropore volumes between 0.24 and 1.20 cm(3)/g and a surface area within 300 and 2139 m(2)/g. These results demonstrated the feasibility to treat the industrial wastes of the Tequila and Mescal industries, being this wastes an excellent precursor to produce highly microporous activated carbons that can be processed at low activation temperatures in short times, with the possibility of recycling the activating agent. (C) 2010 Elsevier Ltd. All rights reserved.