Study on the application of KOH to produce activated carbon to realize the utilization of distiller's grains

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Abstract

The distiller's grains in a liquor factory are selected as the main material to study the preparation of activated carbon with KOH activation. The solid-to-liquid ratio A, KOH concentration B, activation temperature C, activation time D are regarded as variables to produce single factor experiment. The results show that the best preparation conditions of various factors are: 50% KOH concentration, solid-liquid ratio of 1:4, activation temperature of 750°, activation time of 2.0h. The L9 (34) orthogonal experiment is carried out by selecting three levels from each single factor, showing that the importance order of the factors is: B > A > C > D. In addition, when KOH solution concentration is 60%, the solid-liquid ratio is 1:5, activation temperature is 700°, and activation time is 2.0h, the performance of the preparation of activated carbon is the best.

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Yang, H. M., Zhang, D. H., Chen, Y., Ran, M. J., & Gu, J. C. (2017). Study on the application of KOH to produce activated carbon to realize the utilization of distiller’s grains. In IOP Conference Series: Earth and Environmental Science (Vol. 69). Institute of Physics Publishing. https://doi.org/10.1088/1755-1315/69/1/012051

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