RDNOx助剂技术在再生烟气NO_x达标排放中的应用

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英文篇名：APPLICATION OF RDNOx ADDITIVE TO MEET EMISSION REGULATIONS OF NO_x IN FLUE GAS 作者：余成朋 ; 周巍巍 ; 宋海涛 ; 姜秋桥 ; 张凯 ; 田辉平 ; 黄晓华 英文作者：Yu Chengpeng;Zhou Weiwei;Song Haitao;Jiang Qiuqiao;Zhang Kai;Tian Huiping;Huang Xiaohua;SINIOPEC Anqing Company;SINOPEC Research Institute of Petroleum Processing; 关键词：催化裂化 ; 烟气 ; NO_x ; 助剂 英文关键词：FCC;;flue gas;;NO_x;;additive 中文刊名：SYLH 英文刊名：Petroleum Processing and Petrochemicals 机构：中国石化安庆分公司;中国石化石油化工科学研究院; 出版日期：2019-01-12 出版单位：石油炼制与化工 年：2019 期：v.50 语种：中文; 页：SYLH201901035 页数：5 CN：01 ISSN：11-3399/TQ 分类号：99-103

摘要

为实现烟气NO_x达标排放,在中国石化安庆分公司DCC装置无烟气脱硝后处理设施上进行了RDNOx助剂工业应用试验。结果表明,在助剂占系统藏量约2.5%(w)、按进料计剂耗0.03kg/t加注时,可在烟气过剩氧含量不受严格限制的情况下,将烟气中NO_x质量浓度稳定控制在小于70mg/m~3(在线仪表),达到国家最新环保标准(特别限值)要求。逐步调整助剂加注量至0.015kg/t、约占新鲜催化剂补充量的1.5%时,NO_x浓度依然保持稳定达标。相对加注脱硝助剂前的NO_x质量浓度空白值400～500mg/m~3,NO_x浓度降幅达到80%以上。在RDNOx助剂应用过程中,产品分布和主要产品性质基本不变。
        The DCC unit in SINOPEC Anqing Company is lack of NO_x reduction equipment.To meet the requirement of NO_x emission regulations,a commercial trail of RDNOx additive was conducted.The results showed that,when additive was accumulated to about 2.5% of catalyst inventory and added by 0.03 kg/t(based on fresh feed)without strict controlling of excess O_2,NO_x in flue gas could be decreased to 70 mg/m~3,which meets the requirements of the latest national regulations.Nowadays,the addition of RDNOx is adjusted to 0.015 kg/t(about 1.5% of fresh catalyst);NO_x in flue gas is still lower than the limitation.Compared with the 400—500 mg/m~3 NO_x emissions before adding the additive,NO_x is decreased by over 80%.In addition,the application of RDNOx additive has little influence on product distribution and properties.

引文

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