脱硝催化剂载体二氧化钛制备研究进展

Research progress in preparation of titanium dioxide catalyst carrier for denitrification

脱硝催化剂载体二氧化钛(TiO_(2))以其优异的性能在SCR烟气脱硝催化剂行业中得以广泛应用,并成为应用研究的热点。综述了近年来国内外采用液相法和固相法制备脱硝催化剂载体二氧化钛的工艺技术的研究情况和负载活性组分的脱硝催化剂载体二氧化钛的研究情况,比较分析了不同研究工艺制备方法的原理、特点、优缺点和研究进展,展望了脱硝催化剂载体二氧化钛的应用前景。阐明了脱硝催化剂载体TiO_(2)制备中工业化和工程应用中的不足和研究方向,指出了制备方法中依托硫酸法的改进提升获得大比表面积、高活性、低成本等指标的脱硝催化剂载体TiO_(2)粉体依然是研究重点和发展趋势。

Titanium dioxide(TiO_(2))has been widely used in SCR flue gas denitrification catalyst industry because of its excellent performance,and has become a hotspot of application research at home and abroad in recent years.We herein reviewed the technology research situation of titanium dioxide as denitrification carrier prepared by using liquid phase and solid phase methods,as well as the research situation of titanium dioxide loaded active component of denitration catalyst.The related principles,characteristics,advantages and disadvantages,and research progress of these preparation methods are compared and analyzed,and the application prospect of the denitration catalyst carrier titanium dioxide is presented.The deficiency and research direction in the industrialization and engineering application with regard to the preparation of denitration catalyst carrier TiO_(2) were clarified.It was pointed out that the improvement and promotion of the preparation method relying on sulfuric acid method for the denitration catalyst carrier TiO_(2) with large specific surface area,high activity and low cost will still be the research focus and development trend.