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Preparation of Activated Carbon Loading Nano-ZnO and Desulfurization Properties under Room Temperature

机译：活性炭负载纳米ZnO的制备及常温脱硫性能

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摘要

In order to reduce the preparation cost of nano-ZnO desulfurizer, in this paper we used homogeneous precipitation method and mechanical hybrid method to prepare nano-ZnO and activated carbons loading nano-ZnO desulfurizer. Their desulfurization activity under room temperature was studied through dynamic tests and the preparation conditions were optimized. The results show that the diameter of the nano-ZnO particle was 13.3nm. When loaded on the surface of activated carbons, the nano-ZnO structure don't change significantly. After the desulfurizer was modified by hydrochloric acid, the desulfurization of the activated carbons loading nano-ZnO was more effective than it modified by nitric acid. When the mixing time of nano-ZnO and activated carbons is 2h and the mass ratio of ZnO and C is 0.3, the breakthrough time of desulfurization is the longest, which can last 110min. Meanwhile, the activated carbons loaning nano-ZnO can achieve the most effective desulfurization activity.
机译：为了降低纳米氧化锌脱硫剂的制备成本，本文采用均相沉淀法和机械混合法制备了纳米氧化锌和负载活性炭的纳米氧化锌脱硫剂。通过动态试验研究了它们在室温下的脱硫活性，并优化了制备条件。结果表明，纳米ZnO颗粒的直径为13.3nm。当负载在活性炭表面时，纳米ZnO结构不会发生明显变化。用盐酸对脱硫剂进行改性后，载有活性炭的纳米ZnO的脱硫比用硝酸改性的脱硫剂更有效。当纳米ZnO与活性炭的混合时间为2h，且ZnO与C的质量比为0.3时，脱硫的穿透时间最长，可持续110min。同时，活性炭借出纳米ZnO可以达到最有效的脱硫活性。

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