化工进展2017，Vol.36Issue(6)：2143-2149,7.DOI:10.16085/j.issn.1000-6613.2017.06.025
商用选择性催化还原催化剂SO2氧化率控制研究进展
Research progress on the control of SO2 oxidation by commercial SCR catalyst
摘要
Abstract
As the best nitrogen oxide(NOx)control technology,selective catalytic reduction(SCR) has been widely used in NOx emission control. The core of this technology is the catalyst. Typically, commercial V2O5-WO3 (MoO3)/TiO2SCR catalyst consists of V2O5 as the active component,WO3 or MoO3 as the promotor,and TiO2 as the carrier. During the catalytic reduction of NOx,however,the oxidation of SO2 is catalyzed as well and the generated SO3 have significant negative effects on the denitrification process. In this review,the mechanism and research progress of SO2 oxidation were introduced at first. Then the main influence factors of the SO2oxidation rate were reviewed and analyzed in detail,including V2O5 content,catalytic promoters,fly ash,catalyst wall thickness,flue gas composition and reaction temperature. On this basis,methods for controlling the SO2 oxidation rate over SCR catalyst were summarized. Overall,the SO2 oxidation rate control technology has made significant contributions to the development of low SO2 oxidation rate catalysts,regeneration of deactivated catalysts as well as recycling of disabled catalysts,and therefore deserves further research and development.关键词
选择性催化还原/SO2氧化/催化剂/影响因素/控制技术Key words
selective catalytic reduction(SCR)/SO2 oxidation/catalyst/influence factor/control technology分类
化学化工引用本文复制引用
唐昊,李文艳,王琦,陆强,李慧,胡笑颖,董长青..商用选择性催化还原催化剂SO2氧化率控制研究进展[J].化工进展,2017,36(6):2143-2149,7.基金项目
国家重点基础研究发展计划(2015CB251501)及中央高校基本科研业务专项资金(2015ZZD02,2016YQ05)项目. （2015CB251501）
