降低FCC再生烟气NO_x排放助剂的工业应用  

COMMERCIAL APPLICATION OF DECREASING NO_x EMISSION ADDITIVES FOR FCC REGENERATOR FLUE GAS

作　　者：钟贵江[1] 梁先耀[1] 宋海涛[2] 田辉平[2] 

机构地区：[1]中国石化北海炼化有限责任公司,广西北海536000 [2]中国石化石油化工科学研究院

出　　处：《石油炼制与化工》2016年第9期51-56,共6页Petroleum Processing and Petrochemicals

基　　金：中国石油化工股份有限公司合同项目(114111)

摘　　要：为了降低催化裂化(FCC)装置再生烟气的NO_x排放、避免再生器稀相超温及出现"尾燃"问题,中国石化石油化工科学研究院与中国石化北海炼化有限责任公司、中国石化催化剂有限公司合作,在MIP-CGP装置上开展了降低FCC再生烟气NO_x排放助剂RDNO_x的工业应用试验。结果表明:RDNO_x助剂有利于控制再生器稀相温度,减少"尾燃",稀相超温幅度和频次明显低于应用试验以前;应用RDNO_x助剂后,在线仪表监测到再生烟气中NO_x浓度基本在30~60mg/m^3之间波动,低于100mg/m^3的最新环保标准限值,相比早期使用Pt助燃剂时的295mg/m^3,NO_x浓度降低70%以上;RDNO_x助剂的应用未对裂化产物分布、主要产品的组成和性质产生不利影响。RDNOx additive for decreasing FCC NOx emission was applied in the MIP-CGP unit in SINOPEC Beihai Company. The results show that RDNOx additive is effective in controlling the regenerator dilute-phase temperature and reducing ＂after burn＂. The range and frequency of dilute-phase temperature fluctuation are apparently decreased. Furthermore, the NOx content in the treated flue gas analyzed on line is 30 60 mg/m3, which is lower than that of the latest environmental regulation of 100 mg/m3. Compared with 295 mg/m3 when Pt based CO promoter was used, NOx emission is decreased by more than 70%. During the application of RDNOx additive, no negative influence on FCC product distri bution and properties is observed.

关 键 词：催化裂化 再生烟气 NOx 助剂 

分 类 号：X742[环境科学与工程—环境工程]