花生壳与核桃壳制备活性炭的比较研究

Comparative Studies on Producing of Activated Carbon with Peanut Shell and Walnut Shell

试验对花生壳和核桃壳制备活性炭进行了研究。得出花生壳制备活性炭最佳条件为:液固比2∶1,H3PO4质量分数15%,活化温度500℃,活化时间4 h;核桃壳制备活性炭最佳条件为:液固比2∶1,H3PO4质量分数20%,活化温度700℃,活化时间2 h。研究表明:核桃壳制备活性炭更值得推广。

Experiments were researched on activated carbon produced by peanut shell and walnut shell. Research showed that the best experimental conditions of producing activated carbon with peanut shell as followings： liquid to solid ratio was 2∶1,the mass fraction of H3PO4 was 15%,the activation temperature was 500 ℃ and activation time was 4 h. The best experimental conditions of producing activated carbon with walnut shell as followings： liquid to solid ratio was 2∶1,the mass fraction of H3PO4was 20%,the activation temperature was 700 ℃,and activation time was 120 min. The research showed it was suitable for extending to product activated carbon by walnut shell.