AIR POLLUTION BY SO 2、NO x AND THEIR PURIFICATION

Abstract

燃烧等带来的SO2、nOX是酸雨的主要来源。当SO2排放量正逐渐得到控制时,nOX却还在增长,因而应推广较成熟的选择催化还原(SCr)除nOX法和加强氧化气氛下烃类化合物还原nOX的研究,也应该寻找比石灰石-石膏法更好的除SO2措施。除SO2,nOX吸收-催化一体化净化方案正取得进展,还副产急需的硫酸,对我国尤为适用。SO 2、NO x produced From combustion are main precursor of acid rain.It is necessary to extend the selective catalytic reduction (SCR)technology For NO x emission control,especially the reduction of NO x by light hydrocarbons under oxidative condition.At the same time,it is also anxious to Find out abetter technology For SO 2 conversion,rather than the well known gypsum route.The DESONOX or SNOX processes which mean the combined removal of SO 2 and NO x From Flue gases are being pushed Forward.The by products of the process(sulFuric acid or element sulFur)are very useFul materials.国家自然科学基

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