锰基催化剂在脱硝反应中的研究进展

Research Progress of Mn-based Catalysts in Denitration Reaction

低温脱硝催化剂近些年成为研究重点,锰基催化剂因其优异的低温性能在脱硝领域被广泛应用。为研究MnOx基低温脱硝催化剂的催化活性与抗中毒性能,综述了纯MnOx、过渡金属掺杂MnOx和锰基分子筛在脱硝反应中的应用进展,综合比较了MnOx基催化剂抗中毒等性能,发现过渡金属掺杂MnOx和锰基分子筛这两类催化剂具备较好的催化性能和使用寿命。进一步对锰基催化剂的优缺点进行了分析,阐述了锰基催化剂是低温脱硝技术未来的发展方向,为低温脱硝技术奠定了理论基础。

Low temperature denitrification catalysts have become one very hot research topic in recent years.Mn-based catalysts have been widely used in the denitrification fields due to their excellent performance at low temperatures.In order to investigate the catalytic activity and poison resistance of MnOx-based catalysts at low temperatures, the review summarized the recent research progresses on poison resistance and other properties of pure MnOx,transition metal-doped MnOx and Mn-based molecular sieve for the catalysis of denitrification reaction.The results indicated that transition metal-doped MnOx and Mn-based molecular sieve exhibited the excellent catalytic performance and service life.The advantages and disadvantages of Mn-based catalysts were further analyzed, and the low-temperature denitrification performance using Mn-based catalysts was provided for the guidance of future catalyst development, which lays a good theoretical foundation for the low-temperature denitrification technology.