硝酸尾气SCR脱硝技术的开发及工业应用

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英文篇名：Development and industrial applicaion of SCR technology for denitration of nitric acide tail gas 作者：卢衍波 ; 王学海 英文作者：LU Yanbo;WANG Xuehai;Sinopec Scienti?c Development Department;Sinopec Dalian Research Institute of Petroleum and Petrochemicals; 关键词：硝酸尾气 ; 脱硝 ; 选择性催化还原 英文关键词：nitric acid tail gas;;denitri?cation;;selective catalytic reduction(SCR) 中文刊名：HGHB 英文刊名：Environmental Protection of Chemical Industry 机构：中国石化科技部;中国石化大连石油化工研究院; 出版日期：2019-01-02 14:34 出版单位：化工环保 年：2019 期：v.39;No.230 基金：中国石油化工集团公司项目(312003) 语种：中文; 页：HGHB201902022 页数：5 CN：02 ISSN：11-2215/X 分类号：125-129

摘要

硝酸生产尾气脱硝是大气污染治理的重要领域。中国石化开发了硝酸尾气选择性催化还原(SCR)脱硝成套技术,主要包括FN-1型蜂窝状NH_3-SCR催化剂以及SCR反应器、气体分布器等关键设备和内构件。在中国石化南化公司270 kt/a硝酸装置上的工业化应用表明,SCR脱硝装置的入口NO_x质量浓度在200～400 mg/m~3,出口NO_x质量浓度低于20 mg/m~3,NO_x去除率大于95%,逃逸氨质量浓度低于1 mg/m~3,净化效果优于国家和地方的相关排放标准。
        Denitration of nitric acid tail gas is an important field of air pollution control. A complete technology of denitration of nitic acid tail gas by selective catalytic reduction(SCR)has been developed by Sinopec,including FN-1 honeycombed NH_3-SCR catalyst,and key equipment and components,such as SCR reactor,gas distributor,etc. The results of industrial application in 270 kt/a nitric acid unit of Sinopec Nanjing Chemical Industries Co.,Ltd. showed that when the inlet NO_x mass concentration of SCR denitration unit was 200-400 mg/m~3,the outlet NO_x mass concentration was less than 20 mg/m~3,the NO_x removal rate was more than 95%,and the mass concentration of escaped ammonia was less than 1 mg/m~3. The puri?cation effect was superior to national and local related emission standards.

引文

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