活性炭酸碱法脱灰的研究现状与展望

Research progress and prospect of acid-alkali demineralization with activated carbon

为了给不同原料来源及不同矿物质组成的活性炭脱灰方法的选取和脱灰工艺的制定提供参考,探讨了酸碱法脱灰工艺的选取、影响脱灰效果的主要因素及脱灰对活性炭性能的影响,简要介绍了酸碱法脱灰作用机理,并对未来活性炭酸碱法脱灰的研究方向进行了展望,提出为实现活性炭中无机矿物质的精准脱除,需深入研究酸碱化学脱灰剂的脱灰机理、煤基活性炭深度脱灰工艺研发是未来碱洗-酸洗脱灰的发展方向。

Based on different raw materials and minerals of different formulation, the paper provided reference for selection of demineraliza- tion method and formulation for demineralization process. The acid-alkali demineralization method selection, main factors affecting the demineralization effect and activated carbon performance were principally introduced. In addition, the process and mechanism of acid-alka- li demineralization were briefly concerned. Finally, the future research direction of the acid-alkali demineralization with activated carbon was prospected. It is mainly pointed out that the mechanism of de-ashing of the acid-alkali chemical ash removal agent should be studied deeply to realize the accurate removal of inorganic minerals in the activated carbon. The research of deep ash-removal process on coal- based activated carbon is the development trend of alkali-acid washing.