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景文祥, 何美樟. 磷酸活化法制备花椒仁活性炭的研究[J]. 四川林业科技, 2018, 39(5): 43-46. DOI: 10.16779/j.cnki.1003-5508.2018.05.011
引用本文: 景文祥, 何美樟. 磷酸活化法制备花椒仁活性炭的研究[J]. 四川林业科技, 2018, 39(5): 43-46. DOI: 10.16779/j.cnki.1003-5508.2018.05.011
JING Wen-xiang, HE Mei-zhang. A Study of Activated Carbon Preparation from Chinese Prickly Ash Seed Kernel by Phosphoric Acid Activation[J]. Journal of Sichuan Forestry Science and Technology, 2018, 39(5): 43-46. DOI: 10.16779/j.cnki.1003-5508.2018.05.011
Citation: JING Wen-xiang, HE Mei-zhang. A Study of Activated Carbon Preparation from Chinese Prickly Ash Seed Kernel by Phosphoric Acid Activation[J]. Journal of Sichuan Forestry Science and Technology, 2018, 39(5): 43-46. DOI: 10.16779/j.cnki.1003-5508.2018.05.011

磷酸活化法制备花椒仁活性炭的研究

A Study of Activated Carbon Preparation from Chinese Prickly Ash Seed Kernel by Phosphoric Acid Activation

  • 摘要: 以花椒仁为原料,利用磷酸活化法开展了制备活性炭的工艺研究。通过单因素、正交试验,得到的磷酸活化法制备花椒仁活性炭的优化工艺为:活化剂为75%(V/V)的磷酸-水溶液,固液比(g·mL-1)1∶1,活化温度600℃、活化时间25min,各工艺因素影响该活化过程的主次顺序为:活化时间 > 活化温度 > 磷酸浓度 > 固液比。在以上条件下制得的花椒仁活性炭焦糖脱色率为108%,得率为44%,表明花椒仁作为制备活性炭的原料是可行的。

     

    Abstract: In this study,the activation technology was studied for Chinese prickly ash kernel,by phosphoric acid activation method.Through the single-factor and the L9(34) orthogonal tests,the optimal technological conditions were obtained as follows:concentration of phosphoric acid solution 75 % (V/V),solid-liquid ratio 1:1 g·mL-1,activating temperature 600 ℃ and activating time 25 min,Main technological factors were listed as follows in descending order:activating time,activating temperature,concentration of phosphoric acid solution,solid-liquid ratio.With the optimal technology above,the average caramel decolorization rate was 108%,the yield of the activated carbon was up to 44%.The research results could provide an effective way for the utilization of Chinese prickly ash seeds Meanwhile,it could provide technical guidance and ideas for active carbon production and raw material selection.

     

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